CITIBANK SOUTH DAKOTA N A
8-A12G, 1997-02-14
ASSET-BACKED SECURITIES
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                            -------------------------

                                    FORM 8-A

                FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                    PURSUANT TO SECTION 12 (b) OR (g) OF THE
                         SECURITIES EXCHANGE ACT OF 1934
                            -------------------------

                          Citibank (South Dakota), N.A.
                                  on behalf of
                       Citibank Credit Card Master Trust I
  (Issuer in respect of the Citibank  Credit Card Master Trust I, Series  1997-3
     6.839% Class A Credit CardParticipation Certificates and Series 1997-3
             6.989% Class B Credit Card Participation Certificates)
              -----------------------------------------------------
             (Exact name of registrant as specified in its charter)


       United States of America                     46-0358360
    (State or other jurisdiction of             (I.R.S. Employer
     incorporation or organization)              Identification No.)


      701 East 60th St., North
      Sioux Falls, South Dakota                        57117
      (Address of principal                          (Zip Code)
        executive offices)

                     SECURITIES TO BE REGISTERED PURSUANT TO
                           SECTION 12 (b) OF THE ACT:

                                      None.

                     SECURITIES TO BE REGISTERED PURSUANT TO
                           SECTION 12 (g) OF THE ACT:



        $400,000,000 aggregate principal amount of the Citibank Credit
        Card Master Trust I, Series  1997-3 6.839% Class A Credit Card
        Participation  Certificates (the "Class A Certificates")  with
        an  expected  final  payment  date of  February  10,  2002 and
        $25,540,000  aggregate principal amount of the Citibank Credit
        Card Master Trust I, Series  1997-3 6.989% Class B Credit Card
        Participation  Certificates (the "Class B Certificates")  with
        an expected final payment date of February 10, 2002.


<PAGE>



Item 1.  Description of the Registrant's Securities
             to be Registered

                  1.1      For a  description  of the Class A  Certificates  and
                           Class B Certificates, reference is hereby made to the
                           description of the Class A  Certificates  and Class B
                           Certificates  contained in the Prospectus relating to
                           the Class A  Certificates  and  Class B  Certificates
                           filed with the  Securities  and  Exchange  Commission
                           (File   No.33-99328)  and   incorporated   herein  by
                           reference  (see  in  particular  "Series  Provisions"
                           therein).



Item 2.           Exhibits

                  2.1      Form of Class A  Certificate  and Class B Certificate
                           (included within Exhibit 2.3).

                  2.2      Pooling  and  Servicing  Agreement  (incorporated  by
                           reference  from  Exhibit  4.2  of  the   registrants'
                           registration   statements  on  Form  S-1  (File  Nos.
                           33-41054  and  33-48148)  and from  Exhibit  4 of the
                           registrants' registration statement on Form S-3 (File
                           No. 33-77802)).

                  2.3      Series 1997-3 Supplement.



                                       2
<PAGE>


                                    SIGNATURE


                  Pursuant to the  requirements  of Section 12 of the Securities
Exchange Act of 1934, the registrant has duly caused this registration statement
to be signed on its behalf by the undersigned, thereunto duly authorized.


                                                  CITIBANK (SOUTH DAKOTA), N.A.


                                                  By:/s/William A. Kauffman
                                                     __________________________
                                                       William A. Kauffman
                                                       Vice President


February 10, 1997


                                       3
<PAGE>

                                                                   EXHIBIT 2.3


                                                                 EXECUTION COPY




          ------------------------------------------------------------





                         CITIBANK (SOUTH DAKOTA), N.A.,
                              Seller and Servicer,

                               CITIBANK (NEVADA),
                              NATIONAL ASSOCIATION,
                                     Seller,

                                       and

                     YASUDA BANK AND TRUST COMPANY (U.S.A.),
                                     Trustee

                       on behalf of the Certificateholders


                            SERIES 1997-3 SUPPLEMENT

                          Dated as of February 10, 1997

                                       to

                         POOLING AND SERVICING AGREEMENT

                            Dated as of May 29, 1991



                       CITIBANK CREDIT CARD MASTER TRUST I

                                  SERIES 1997-3




           -----------------------------------------------------------



<PAGE>

                                TABLE OF CONTENTS

                                                                      Page


                                    ARTICLE I

                   Creation of the Series 1997-3 Certificates

Section 1.01.  Designation                                             1

                                   ARTICLE II

                                   Definitions

Section 2.01.  Definitions                                             2
Section 2.02.  Amendment to Definition of "Series
                    Adjusted Invested Amount"                         27

                                   ARTICLE III

                              Servicer and Trustee

Section 3.01.  Servicing Compensation                                 27
Section 3.02.  Trustee Appointment of Agents                          30

                                   ARTICLE IV

                   Rights of Series 1997-3 Certificateholders
                               and Allocation and
                           Application of Collections

Section 4.01.  Allocations                                            30
Section 4.02.  Determination of Monthly Interest                      32
Section 4.03.  Determination of Monthly Principal                     33
Section 4.04.  Establishment of Funding Accounts                      34
Section 4.05.  Required Amount                                        36
Section 4.06.  Application of Reallocated Investor
                    Finance Charge Collections and
                    Available Investor Principal Collections          37
Section 4.07.  Distributions to Series 1997-3 Certificateholders      43
Section 4.08.  Investor Charge-Offs                                   44
Section 4.09.  Excess Finance Charge Collections                      46
Section 4.10.  Subordinated Principal Collections                     48
<PAGE>
                                                                      ii

                               TABLE OF CONTANTS
                               -----------------
                                    (cont'd)

                                                                      Page

Section 4.11.  Credit Enhancement                                     49
Section 4.12.  Reallocated Investor Finance Charge Collections        57
Section 4.13.  Excess Principal Collections                           58

                                    ARTICLE V

                          Distributions and Reports to
                        Series 1997-3 Certificateholders

Section 5.01.  Distributions                                          60
Section 5.02.  Reports and Statements to Series 1997-3
                    Certificateholders                                61

                                   ARTICLE VI

                               Amortization Events

Section 6.01.  Additional Amortization Events                         62

                                   ARTICLE VII

                   Optional Repurchase; Additional Issuances;
                               Accumulation Period

Section 7.01.  Optional Repurchase                                    63
Section 7.02.  Additional Issuances of Series 1997-3 Certificates     64
Section 7.03.  Accumulation Period Postponement                       67
Section 7.04.  Initial Principal Payment Date                         68

                                  ARTICLE VIII

                               Final Distributions

Section 8.01.  Sale of Certificateholders' Interest
                    pursuant to Section 2.06 or 10.01 of the
                    Agreement                                         69
Section 8.02.  Distribution of Proceeds of Sale,
                    Disposition or Liquidation of the Receivables
                    Pursuant to Section 9.02 of the Agreement         71

<PAGE>
                                                                      iii

                               TABLE OF CONTANTS
                               -----------------
                                    (cont'd)

                                                                      Page
                                   ARTICLE IX

                                    Covenants

Section 9.01.  Reduction in Portfolio Yield                           74

                                    ARTICLE X

                            Miscellaneous Provisions

Section 10.01.  Ratification of Agreement                             74
Section 10.02.  Counterparts                                          74
Section 10.03.  Governing Law                                         74
Section 10.04.  Construction of Agreement                             75


                                    EXHIBITS

Exhibit A-1   Form of Class A Certificate
Exhibit A-2   Form of Class B Certificate
Exhibit B-1   Form of Monthly Payment Instructions and Notification
                    to the Trustee and the Cash Collateral Depositor
Exhibit B-2   Form of Monthly Payment Instructions and Notification
                    to the Trustee and the Additional Cash Collateral Depositor
Exhibit C     Form of Monthly Statement
Exhibit D     Form of Monthly Servicer's Certificate

<PAGE>

                                                              EXECUTION COPY

                             SERIES 1997-3 SUPPLEMENT dated as of
                     February 10,  1997,  among  CITIBANK  (SOUTH
                     DAKOTA),    N.A.,    a   national    banking
                     association,  Seller and Servicer;  CITIBANK
                     (NEVADA),  NATIONAL ASSOCIATION,  a national
                     banking association, Seller; and YASUDA BANK
                     AND TRUST COMPANY (U.S.A.), a New York trust
                     company, Trustee.


                  Pursuant to the Pooling and  Servicing  Agreement  dated as of
May 29, 1991 (as amended and supplemented, the "Agreement"),  among the Sellers,
the  Servicer and the Trustee,  the Sellers  have created  Citibank  Credit Card
Master Trust I (the  "Trust").  Section 6.03 of the Agreement  provides that the
Sellers  may from time to time  direct the  Trustee  to issue,  on behalf of the
Trust, one or more new Series of Investor Certificates  representing  fractional
undivided  interests in the Trust.  The Principal Terms of any new Series are to
be set forth in a Supplement to the Agreement.

                  Pursuant  to  this  Series  Supplement,  the  Sellers  and the
Trustee  shall  create a new Series of  Investor  Certificates  and  specify the
Principal Terms thereof.


                                    ARTICLE I

                   Creation of the Series 1997-3 Certificates

                  Section  1.01.  Designation.  (a)  There is  hereby  created a
Series of Investor  Certificates to be issued pursuant to the Agreement and this
Series  Supplement  to be known as "Citibank  Credit Card Master Trust I, Series
1997-3".  The Series  1997-3  Certificates  shall be issued in two Classes,  the
first of which shall be known as the "6.839%  Class A Credit Card  Participation
Certificates,  Series  1997-3",  and the  second of which  shall be known as the
"6.989% Class B Credit Card Participation  Certificates,  Series 1997-3". Series
1997-3 shall be deemed to be an Excluded Series  following the close of business
on the fourth-to-last Business Day of the second month prior to the then-current
Initial  Principal  Payment Date.  Series 1997-3 shall be a Subordinated  Excess
Principal Series.

                  (b)   Series   1997-3   shall  be   included   in  Group  One.
Notwithstanding any provision in the Agreement or in this
<PAGE>
                                       2


Series  Supplement,  the first  Distribution  Date with respect to Series 1997-3
shall be the March 1997 Distribution Date.

                  (c) In the event that any term or provision  contained  herein
shall conflict with or be inconsistent  with any term or provision  contained in
the Agreement, the terms and provisions of this Series Supplement shall govern.


                                   ARTICLE II

                                   Definitions

                  Section  2.01.  Definitions.  (a) Whenever used in this Series
Supplement,  the following words and phrases shall have the following  meanings,
and the  definitions of such terms are applicable to the singular as well as the
plural  forms of such terms and to the  masculine as well as to the feminine and
neuter genders of such terms.

                  "Accumulation Period" shall mean, unless an Amortization Event
or a Principal  Payment  Event shall have  occurred  prior  thereto,  the period
commencing  at the  close of  business  on the  fourth-to-last  Business  Day of
January 2001,  or such later date as is  determined  in accordance  with Section
7.03,  and ending upon the first to occur of (a) the  commencement  of the Early
Amortization  Period,  (b) the commencement of the Principal  Payment Period and
(c)  the   payment   in  full  to  Class  A   Certificateholders   and  Class  B
Certificateholders  of the Class A  Invested  Amount  and the  Class B  Invested
Amount, respectively.

                  "Accumulation  Period  Amount"  shall  mean for  each  Monthly
Period an amount equal to the product of (i)  Available  Expected  Principal for
such Monthly  Period and (ii) a fraction,  the numerator of which is the Initial
Invested  Amount  and the  denominator  of which  is the sum of (a) the  Initial
Invested  Amount  and  (b)  the  initial   invested   amounts  of  all  Variable
Accumulation  Series which are not in their revolving periods as of such Monthly
Period; provided that, for purposes of this definition, the commencement date of
the accumulation period of each Variable  Accumulation Series shall be deemed to
have  been  postponed  to the  latest  permissible  date,  determined  as if the
provisions of Section 7.03 applied to each such Series (applying such provisions
first to the Variable Accumulation Series with the latest expected final payment
date and next to each  Series with the next  preceding  expected  final  payment
date);  provided
<PAGE>
                                       3


further,  that a  Variable  Accumulation  Series  shall be  deemed  to be in its
revolving  period  in each  Monthly  Period  in  which  the sum of the  expected
controlled  accumulation  or  amortization  amounts for all  subsequent  monthly
periods for such Series is equal to the initial invested amount of such Series.

                  "Additional  Cash  Collateral  Account" shall have the meaning
specified in Section 4.11(a.1).

                  "Additional   Cash  Collateral   Depositor"   shall  mean  the
financial  institution or institutions which is or are a party to any Additional
Loan Agreement, such financial institution or institutions to be selected by the
Sellers on or prior to an Additional Issuance Date, or any successors or assigns
thereto appointed as provided in such Additional Loan Agreement.

                  "Additional  Class A  Certificates"  shall  have  the  meaning
specified in Section 7.02(a).

                  "Additional  Class B  Certificates"  shall  have  the  meaning
specified in Section 7.02(a).

                  "Additional   Interest"   shall   mean,   at   any   time   of
determination,  the sum of Class A  Additional  Interest  and Class B Additional
Interest.

                  "Additional  Investor  Certificates" shall mean any one of the
Additional Class A Certificates or the Additional Class B Certificates.

                  "Additional  Issuance"  shall have the  meaning  specified  in
Section 7.02(a).

                  "Additional Issuance Date" shall have the meaning specified in
Section 7.02(a).

                  "Additional Loan Agreement" shall mean the agreement among the
Banks, the Trustee and any Additional Cash Collateral Depositor, dated as of the
related Additional Issuance Date.

                  "Adjusted  Invested  Amount"  shall mean the  Series  Adjusted
Invested Amount with respect to Series 1997-3.

                  "Allocable  Defaulted  Amount" shall mean, with respect to any
Due Period,  an amount equal to the product of
<PAGE>
                                       4


(a) the Series 1997-3 Allocation Percentage with respect to such Due Period, (b)
the Floating  Allocation  Percentage with respect to such Due Period and (c) the
Defaulted Amount with respect to such Due Period.

                  "Allocable  Finance  Charge   Collections"  shall  mean,  with
respect to any Deposit Date or Distribution  Date, the product of (a) the Series
1997-3  Allocation  Percentage  for the related Due Period and (b) the aggregate
amount of Collections in respect of Finance Charge  Receivables  relating to any
Deposit Date or Distribution Date, as applicable.

                  "Allocable Miscellaneous Payments" shall mean, with respect to
any  Distribution  Date,  the  product  of  (a)  the  Series  1997-3  Allocation
Percentage  for the  related  Due Period  and (b)  Miscellaneous  Payments  with
respect to the related Due Period.

                  "Allocable Principal  Collections" shall mean, with respect to
any Deposit  Date or  Distribution  Date,  the product of (a) the Series  1997-3
Allocation Percentage for the related Due Period and (b) the aggregate amount of
Collections in respect of Principal  Receivables relating to any Deposit Date or
Distribution Date, as applicable.

                  "Available Additional Cash Collateral Amount" shall mean, with
respect  to  each  Additional  Cash  Collateral  Account  and  on  any  date  of
determination,  the lesser of (a) the amount on deposit in such  Additional Cash
Collateral  Account and (b) the Initial  Additional Cash  Collateral  Amount for
such Additional Cash Collateral Account.

                  "Available Cash Collateral Amount" shall mean, with respect to
any date of  determination,  the lesser of (a) the amount on deposit in the Cash
Collateral Account and (b) the Initial Cash Collateral Amount.

                  "Available Enhancement Amount" shall mean, with respect to any
date of  determination,  the sum of the Available Cash Collateral Amount and the
Available Additional Cash Collateral Amount with respect to such date.

                  "Available  Expected  Principal" for any date of determination
with  respect  to each  Monthly  Period  shall be equal to the excess of (a) the
Expected Monthly  Principal for such Monthly Period over (b) the sum of, without
duplication,  (i) all scheduled  amortizations  or  accumulations  of principal,
including  past due shortfalls as
<PAGE>
                                       5


of such date of determination,  for all Fixed Accumulation  Series which are not
in their  revolving  periods as of such  Monthly  Period and (ii) all  principal
collections  projected  by the Servicer to be allocable to any other Series with
respect to which an  Amortization  Event shall have occurred on or prior to such
date of determination.

                  "Available  Investor  Principal  Collections" shall mean, with
respect to any Distribution Date, the sum of (a) an amount equal to (i) Investor
Principal  Collections  for such  Distribution  Date,  minus  (ii) the amount of
Subordinated  Principal Collections with respect to such Distribution Date which
pursuant  to Section  4.10(a) is  required  to fund any  deficiency  pursuant to
Section 4.06(a)(i) and (a)(iii) or (c)(i) and (c)(iii),  as the case may be, for
such Distribution Date, plus (b) Allocable  Miscellaneous Payments on deposit in
the Collection Account for such Distribution Date, plus (c) Series 1997-3 Excess
Principal Collections on deposit in the Collection Account for such Distribution
Date plus (d) Subordinated Series Reallocated  Principal  Collections on deposit
in the Collection Account for such Distribution Date.

                  "Available Shared Enhancement Amount" shall mean, with respect
to any date of determination,  the lesser of (a) the Initial Shared  Enhancement
Amount and (b) the excess, if any, of the Available  Enhancement  Amount on such
date over the Initial Class B Enhancement Amount.

                  "Cash Collateral Account" shall have the meaning specified in
Section 4.11(a).

                  "Cash Collateral Account Investments" shall mean Eligible
Investments.

                  "Cash   Collateral   Depositor"   shall  mean  the   financial
institution  or  institutions  which  are a party  to the Loan  Agreement,  such
financial  institution or institutions to be selected by the Sellers on or prior
to the  Closing  Date to make a deposit  in the Cash  Collateral  Account on the
Closing Date, or any successors or assigns thereto  appointed as provided in the
Loan Agreement.

                  "CCA Charge-Offs" shall have the meaning specified in Section
4.08(d).
<PAGE>
                                       6


                  "CCA  Default   Amount"  shall  mean,   with  respect  to  any
Distribution   Date  (commencing  with  the  Distribution   Date  following  the
Distribution  Date on which the Class A Invested Amount and the Class B Invested
Amount are paid in full and provided that the Economic  Special Payment Date has
occurred), the Allocable Defaulted Amount for the related Due Period.

                  "CCA Initial  Invested Amount" shall mean the aggregate amount
withdrawn from the Cash  Collateral  Account and each Additional Cash Collateral
Account  and  applied  to  the  payment  of  principal  of  the  Series   1997-3
Certificates with respect to the Economic Special Payment Date, if any, pursuant
to Section 4.11(i)(D) and (E).

                  "CCA Invested  Amount"  shall mean,  when used with respect to
any date, an amount equal to (a) the CCA Initial Invested Amount,  minus (b) the
aggregate amount of principal payments made to the Cash Collateral Depositor and
each Additional Cash Collateral  Depositor pursuant to Section 4.06(f)(iv) prior
to such date,  minus (c) the aggregate  amount of CCA  Charge-Offs for all prior
Distribution  Dates pursuant to Section 4.08(d),  minus (d) the aggregate amount
of Subordinated  Principal Collections allocated on all prior Distribution Dates
pursuant  to  Section  4.10(a)  that have  resulted  in a  reduction  in the CCA
Invested  Amount pursuant to Section  4.08(c),  minus (e) an amount equal to the
amount  by  which  the  CCA  Invested  Amount  has  been  reduced  on all  prior
Distribution  Dates pursuant to Section 4.08(a) and (b), and plus (f) the sum of
(i) the aggregate amount of any Allocable  Miscellaneous  Payments allocated and
available on all prior  Distribution  Dates pursuant to Section 4.08(d) and (ii)
the amount of Excess Finance Charge  Collections  allocated and available on all
prior  Distribution  Dates  pursuant  to  Section  4.09(i),  for the  purpose of
reimbursing amounts deducted pursuant to the foregoing clauses (c), (d) and (e);
provided,  however, that (i) unless and until a withdrawal is made from the Cash
Collateral Account and each Additional Cash Collateral Account, and the proceeds
thereof  are  applied  to  the  payment  of  principal  of  the  Series   1997-3
Certificates,  with respect to the  Economic  Special  Payment Date  pursuant to
Section  4.11(i)(D) and (E), the CCA Invested  Amount shall be zero and (ii) the
CCA Invested Amount may not be reduced below zero.

                  "CCA  Monthly  Interest"  shall  mean,  with  respect  to  any
Distribution  Date following the Economic  Special Payment
<PAGE>
                                       7


Date,  an amount  equal to  one-twelfth  of the product of (a) the CCA  Invested
Amount as of the close of business  on the  preceding  Distribution  Date (after
giving  effect to any  distribution  to the Cash  Collateral  Depositor and each
Additional  Cash  Collateral  Depositor  on  such  preceding  Distribution  Date
pursuant to Section  4.06(f)(iv)) and (b) a fraction,  the numerator of which is
equal to the sum of (i) the product of (x) the Class A Certificate  Rate and (y)
the outstanding principal balance of the Class A Certificates as of the close of
business  on such  preceding  Distribution  Date  (after  giving  effect  to any
distribution of Class A Monthly Principal on such preceding  Distribution  Date)
and (ii) the product of (x) the Class B Certificate Rate and (y) the outstanding
principal  balance of the Class B  Certificates  as of the close of  business on
such preceding  Distribution  Date (after giving effect to any  distribution  of
Class  B  Monthly  Principal  on  such  preceding  Distribution  Date)  and  the
denominator of which is the sum of the outstanding  principal  balances referred
to in clauses (i)(y) and (ii)(y) above; provided,  however, that with respect to
each  Distribution Date following the Distribution Date on which the outstanding
principal  balance of the Class A  Certificates  has been reduced to zero,  "CCA
Monthly  Interest" shall mean, with respect to any Distribution  Date, an amount
equal to  one-twelfth  of the product of (A) the CCA  Invested  Amount as of the
close of business on the preceding Distribution Date (after giving effect to any
distribution  to  the  Cash  Collateral   Depositor  and  each  Additional  Cash
Collateral  Depositor on such  preceding  Distribution  Date pursuant to Section
4.06(f)(iv)) and (B) the Class B Certificate Rate.

                  "CCA Monthly  Principal" shall mean, for any Distribution Date
with respect to the Early Amortization  Period,  beginning with the Distribution
Date on which the Class A Invested  Amount  and the Class B Invested  Amount are
paid in full and provided that the Economic  Special  Payment Date has occurred,
the Available Investor  Principal  Collections for such Distribution Date (minus
the portion of such Available Investor Principal  Collections applied to Class A
Monthly  Principal  or Class B Monthly  Principal  on such  Distribution  Date);
provided,  however,  that the CCA  Monthly  Principal  shall not  exceed the CCA
Invested Amount.

                  "CCA Monthly Servicing Fee" shall have the meaning specified
in Section 3.01.
<PAGE>
                                       8

                  "Class A Additional Interest" shall have the meaning specified
in Section 4.02(a).

                  "Class A Allocable  Share" shall mean,  for each  Distribution
Date  with  respect  to a  Monthly  Period,  the sum of (a) the  product  of (i)
Reallocated  Investor  Finance  Charge  Collections  deposited in the Collection
Account for such Distribution Date and (ii) the Class A Invested  Percentage for
such  Distribution  Date and (b) the Class A Funding Account  Shortfall for such
Distribution  Date,  if any,  and the  amount  of any  Class A  Funding  Account
Shortfall  previously  due but not deposited  into the Class A Interest  Funding
Account on a prior Distribution Date.

                  "Class A  Certificate  Rate"  shall  mean  6.839%  per  annum,
calculated on the basis of a 360-day year of twelve 30-day months.

                  "Class A  Certificateholder"  shall  mean the  Person in whose
name a Class A Certificate is registered in the Certificate Register.

                  "Class A Certificateholders' Interest" shall mean that portion
of the Certificateholders' Interest evidenced by the Class A Certificates.

                  "Class A Certificates"  shall mean any one of the certificates
executed  by the  Banks  and  authenticated  by or on  behalf  of  the  Trustee,
substantially in the form of Exhibit A-1. For the avoidance of doubt,  when used
in this Series  Supplement  the term "Class A  Certificates"  shall  include any
Additional Class A Certificates.

                  "Class A Covered  Amount"  shall  mean,  with  respect  to any
Monthly Period,  one-twelfth of the product of (a) the Class A Certificate  Rate
and (b) the Class A Principal Funding Account Balance,  if any, for such Monthly
Period.

                  "Class A Excess Investment  Proceeds" shall mean, with respect
to any Monthly Period, an amount equal to the excess, if any, of (a) the Class A
Investment  Proceeds for such Monthly Period over (b) the Class A Covered Amount
for such Monthly Period.

                  "Class A Expected Final Payment Date" shall mean the February
2002 Distribution Date.
<PAGE>
                                       9


                  "Class A Funding Account  Shortfall"  shall mean, with respect
to any Monthly Period, an amount equal to the excess, if any, of (a) the Class A
Covered Amount for such Monthly Period over (b) the Class A Investment  Proceeds
for such Monthly Period.

                  "Class A Initial  Invested  Amount"  shall mean the sum of the
aggregate  initial  principal  amount  of the  Class A  Certificates,  which  is
$400,000,000 on the Closing Date, and the aggregate  initial principal amount of
any Additional Class A Certificates.

                  "Class A Interest Funding Account" shall have the meaning
specified in Section 4.04(a).

                  "Class A Interest Shortfall" shall have the meaning specified
in Section 4.02(a).

                  "Class A Invested  Amount" shall mean,  when used with respect
to any date, an amount equal to (a) the Class A Initial Invested  Amount,  minus
(b)  the   aggregate   amount   of   principal   payments   made   to   Class  A
Certificateholders  prior to such date, minus (c) the Class A Principal  Funding
Account  Balance  as of such  date and  minus  (d) the  excess,  if any,  of the
aggregate  amount  of  Class  A  Investor  Charge-Offs  over  Class  A  Investor
Charge-Offs reimbursed pursuant to Section 4.08(a) prior to such date; provided,
however, that the Class A Invested Amount may not be reduced below zero.

                  "Class A Invested  Percentage" shall mean, with respect to any
Distribution  Date,  the percentage  equivalent of a fraction,  the numerator of
which is the Class A Invested Amount as of the last day of the second  preceding
Due Period and the  denominator of which is the Invested  Amount as of such last
day.

                  "Class A  Investment  Fee" shall mean,  for each  Distribution
Date  beginning  with the  March  2001  Distribution  Date and  ending  with the
Distribution Date immediately preceding the Class A Expected Final Payment Date,
a fee in an amount equal to $421,726,  $385,432,  $348,803,  $311,870, $274,352,
$236,507,  $198,221,  $159,462,  $120,328,  $80,641  and  $40,554  respectively;
provided,  however,  after any Additional  Issuance Date, the Class A Investment
Fee shall be the amounts specified on such Additional Issuance Date.

                  "Class A Investment  Proceeds" shall mean, with respect to any
Monthly Period, the aggregate amount of all
<PAGE>
                                       10


interest and other  investment  income (net of investment  expenses) earned (and
actually received by the Trustee on the Distribution Date following such Monthly
Period)  on the Class A  Principal  Funding  Account  Balance  for such  Monthly
Period.

"Class A Investor  Charge-Offs"  shall  have the  meaning  specified  in Section
4.08(a).

                  "Class A Investor  Default Amount" shall mean, with respect to
any  Distribution  Date,  an amount  equal to the  product of (a) the  Allocable
Defaulted  Amount  for the  related  Due  Period  and (b) the  Class A  Invested
Percentage for such Distribution Date.

                  "Class A Monthly Interest" shall have the meaning specified in
Section 4.02(a).

                  "Class A Monthly  Principal" shall have the meaning  specified
in Section 4.03(a).

                  "Class  A  Monthly  Servicing  Fee"  shall  have  the  meaning
specified in Section 3.01.

                  "Class  A  Principal  Draw  Amount"  shall  have  the  meaning
specified in Section 4.11(h).

                  "Class A  Principal  Funding  Account"  shall have the meaning
specified in Section 4.04(b).

                  "Class A Principal  Funding Account  Balance" shall mean, with
respect to any Monthly Period,  the principal  amount, if any, on deposit in the
Class A Principal Funding Account on the last day of such Monthly Period.

                  "Class B Additional Interest" shall have the meaning specified
in Section 4.02(b).

                  "Class B Allocable  Share" shall mean,  for each  Distribution
Date with respect to a Monthly Period,  the product of (i) Reallocated  Investor
Finance  Charge  Collections  deposited  in  the  Collection  Account  for  such
Distribution Date and (ii) the Class B Invested Percentage for such Distribution
Date.

                  "Class B  Certificate  Rate"  shall  mean  6.989%  per  annum,
calculated on the basis of a 360-day year of twelve 30-day months.
<PAGE>
                                       11


                  "Class B  Certificateholder"  shall  mean the  Person in whose
name a Class B Certificate is registered in the Certificate Register.

                  "Class B Certificateholders' Interest" shall mean that portion
of the Certificateholders' Interest evidenced by the Class B Certificates.

                  "Class B Certificates"  shall mean any one of the certificates
executed  by the  Banks  and  authenticated  by or on  behalf  of  the  Trustee,
substantially  in the form of Exhibit A-2. For the avoidance of doubt,  the term
"Class B  Certificates"  when used in this Series  Supplement  shall include any
Additional Class B Certificates.

                  "Class B Expected  Final Payment Date" shall mean the February
2002 Distribution Date.

                  "Class B Initial  Invested  Amount"  shall mean the sum of the
aggregate  initial  principal  amount  of the  Class B  Certificates,  which  is
$25,540,000 on the Closing Date, and the aggregate  initial  principal amount of
any Additional Class B Certificates.

                  "Class B Interest  Funding  Account"  shall  have the  meaning
specified in Section 4.04(a).

                  "Class B Interest  Shortfall" shall have the meaning specified
in Section 4.02(b).

                  "Class B Invested  Amount" shall mean,  when used with respect
to any date, an amount equal to (a) the Class B Initial Invested  Amount,  minus
(b)  the   aggregate   amount   of   principal   payments   made   to   Class  B
Certificateholders prior to such date (other than any principal payments made to
Class B  Certificateholders  from the  proceeds of a  Reimbursement  Draw Amount
pursuant to Section 4.11(f)), minus (c) the aggregate amount of Class B Investor
Charge-Offs for all prior Distribution Dates pursuant to Section 4.08(b),  minus
(d) the aggregate amount of Subordinated  Principal Collections allocated on all
prior Distribution Dates pursuant to Section 4.10(a) (excluding any Subordinated
Principal  Collections  that have  resulted in a reduction  in the CCA  Invested
Amount pursuant to Section 4.08(c)),  minus (e) an amount equal to the amount by
which the Class B  Invested  Amount has been  reduced on all prior  Distribution
Dates  pursuant to Section  4.08(a),  and plus (f) the sum of (i) the  aggregate
amount of any
<PAGE>
                                       12


Allocable   Miscellaneous   Payments   allocated  and  available  on  all  prior
Distribution  Dates pursuant to Section 4.08(b)(i) and (ii) the amount of Excess
Finance  Charge  Collections  allocated and available on all prior  Distribution
Dates  pursuant  to Section  4.09(f),  for the  purpose of  reimbursing  amounts
deducted pursuant to the foregoing clauses (c), (d) and (e); provided,  however,
that the Class B Invested Amount may not be reduced below zero.

                  "Class B Invested  Percentage" shall mean, with respect to any
Distribution  Date,  the percentage  equivalent of a fraction,  the numerator of
which is the Class B Invested Amount as of the last day of the second  preceding
Due Period and the  denominator of which is the Invested  Amount as of such last
day.

                  "Class  B  Investor   Charge-Offs"   shall  have  the  meaning
specified in Section 4.08(b).

                  "Class B Investor  Default Amount" shall mean, with respect to
any  Distribution  Date,  an amount  equal to the  product of (a) the  Allocable
Defaulted  Amount  for the  related  Due  Period  and (b) the  Class B  Invested
Percentage for such Distribution Date.

                  "Class B Monthly Interest" shall have the meaning specified in
Section 4.02(b).

                  "Class B Monthly  Principal" shall have the meaning  specified
in Section 4.03(b).

                  "Class  B  Monthly  Servicing  Fee"  shall  have  the  meaning
specified in Section 3.01.

                  "Class  B   Principal   Commencement   Date"  shall  mean  the
Distribution Date on which the Class A Invested Amount is to be paid in full.

                  "Class  B  Principal  Draw  Amount"  shall  have  the  meaning
specified in Section 4.11(h).

                  "Closing Date" shall mean February 10, 1997.

                  "Controlled   Amortization   Amount"  shall  mean  $36,363,637
provided that after any Additional  Issuance Date, or if the commencement of the
Accumulation  Period is  postponed  pursuant  to Section  7.03,  the  Controlled
Amortization  Amount shall mean the amount to be  specified  on
<PAGE>
                                       13


such Additional Issuance Date or on the date on which the Accumulation Period is
postponed,  as applicable;  provided  further,  that if the  commencement of the
Accumulation  Period is  postponed  pursuant  to Section  7.03,  the  Controlled
Amortization  Amount  for  each  Monthly  Period  shall be no  greater  than the
Accumulation  Period Amount for such Monthly  Period and no less than the lesser
of  (a)  the  Accumulation  Period  Amount  for  such  Monthly  Period  and  (b)
one-eleventh of the Class A Initial Invested Amount; provided, however, that the
sum of the Controlled  Amortization  Amounts for all Monthly  Periods during the
postponed  Accumulation  Period  shall  not be less  than  the  Class A  Initial
Invested Amount.

                  "Controlled   Distribution   Amount"   shall  mean,   for  any
Distribution  Date with respect to a Monthly Period,  an amount equal to the sum
of the  Controlled  Amortization  Amount  and any  existing  Deficit  Controlled
Amortization Amount.

                  "Cumulative  Excess Interest  Amount" shall mean, with respect
to any Distribution  Date, an amount equal to the sum of (a) the Excess Interest
Amount  with  respect to such  Distribution  Date and (b) the  aggregate  Excess
Interest  Amounts with respect to prior  Distribution  Dates which have not been
deposited in the Class B Interest Funding Account pursuant to Section 4.09(c) or
4.11(d);  provided,  however,  that with respect to the first Distribution Date,
the Cumulative Excess Interest Amount shall be zero.

                  "Cut-Off Date" shall mean January 28, 1997.

                  "Default  Draw  Amount"  shall have the meaning  specified  in
Section 4.11(e).

                  "Deficit Controlled Amortization Amount" shall mean (a) on the
first Distribution Date with respect to the Accumulation  Period, the excess, if
any, of the Controlled  Amortization Amount over the amount distributed from the
Collection  Account as Class A Monthly  Principal for such Distribution Date and
(b) on each  subsequent  Distribution  Date  with  respect  to the  Accumulation
Period, the excess, if any, of the Controlled  Amortization Amount plus any then
existing Deficit Controlled Amortization Amount over the amount distributed from
the Collection Account as Class A Monthly Principal for such Distribution Date.

                  "Determination  Date"  shall  mean the  earlier  of the  fifth
Business  Day and the eighth  calendar  day  preceding
<PAGE>
                                       14


the  seventh  day of each  calendar  month  (or,  if such  seventh  day is not a
Business Day, the next succeeding Business Day).

                  "Distribution  Date" shall mean the tenth day of each calendar
month, or if such tenth day is not a Business Day, the next succeeding  Business
Day, commencing March 10, 1997.

                  "Early Amortization Period" shall mean the period beginning at
the close of business on the Business Day immediately preceding the day on which
an Amortization  Event with respect to Series 1997-3 is deemed to have occurred,
and ending  upon the  earlier to occur of (i) the payment in full to the Class A
Certificateholders  and the Class B  Certificateholders  of the Class A Invested
Amount and the Class B Invested Amount, respectively, and the payment in full to
the Cash Collateral  Depositor and each Additional Cash Collateral  Depositor of
the CCA Invested Amount, if any, and (ii) the Termination Date.

                  "Economic Amortization Event" shall mean an Amortization Event
set forth in Section 6.01(c) or (e).

                  "Economic Special Payment Date" shall mean the Special Payment
Date  falling in the Due Period  following  the Due Period in which an  Economic
Amortization Event is deemed to have occurred.

                  "Excess Finance Charge  Collections"  shall mean, with respect
to any Distribution Date, the sum of the amounts,  if any, specified pursuant to
Section 4.06(a)(v) or (c)(v) and (b)(iii) or (d)(iii),  as the case may be, with
respect to such Distribution Date.

                  "Excess  Interest  Amount"  shall  mean,  with  respect to any
Distribution  Date, an amount equal to one-twelfth of the product of (a) (i) the
outstanding  principal  balance of the Class B Certificates  as of the preceding
Distribution  Date  (after   subtracting   therefrom  the  aggregate  amount  of
distributions   of   Class   B   Monthly   Principal   made   to  the   Class  B
Certificateholders on or before such preceding Distribution Date) minus (ii) the
Class B Invested  Amount as of such  preceding  Distribution  Date (after giving
effect  to any  increase  or  decrease  in the Class B  Invested  Amount on such
preceding  Distribution  Date) and (b) the Class B Certificate  Rate;  provided,
however,  that with respect to the first  Distribution Date, the Excess Interest
Amount shall be zero.
<PAGE>
                                       15

                  "Excluded  Series" shall mean Series  1992-1,  Series  1993-1,
Series 1995-7 and any other Series  designated  in the related  Supplement as an
Excluded Series.

                  "Expected Monthly  Principal" shall be equal to the product of
(i) the lowest of the monthly principal payment rates expressed as a decimal for
the 12  months  preceding  the date of such  calculation  and  (ii) the  initial
invested amounts of all outstanding  Series,  other than Excluded Series (except
if an Amortization Event has occurred with respect to such Excluded Series).

                  "Fixed  Accumulation   Series"  shall  mean  each  outstanding
Series,  other than  Excluded  Series,  for which,  pursuant to the terms of the
related Supplement,  the commencement date of the Accumulation Period may not be
changed at the option of the Servicer.

                  "Floating  Allocation  Percentage" shall mean, with respect to
any Due Period,  the percentage  equivalent (which percentage shall never exceed
100%) of a fraction,  the  numerator of which is the sum of the Invested  Amount
and the CCA Invested Amount,  if any, as of the first day of such Due Period and
the  denominator  of which is the product of (a) the total  amount of  Principal
Receivables  in the Trust as of the last day of the  immediately  preceding  Due
Period and (b) the Series 1997-3  Allocation  Percentage with respect to the Due
Period  in  respect  of  which  the  Floating  Allocation  Percentage  is  being
determined;  provided,  however, that, with respect to the first Due Period, the
Floating  Allocation  Percentage  shall  mean  the  percentage  equivalent  of a
fraction,  the  numerator  of  which  is the  Initial  Invested  Amount  and the
denominator  of  which is the  product  of (x) the  total  amount  of  Principal
Receivables  in the  Trust  on the  Cut-Off  Date  and  (y)  the  Series  1997-3
Allocation  Percentage with respect to the Cut-Off Date;  provided further that,
with respect to any Due Period in which a Lump  Addition  occurs or a removal of
Accounts pursuant to Section 2.10 of the Agreement  occurs,  the amount referred
to in clause  (a)  shall be the  weighted  average  of the  amount of  Principal
Receivables  in the Trust on the date on which such Lump  Addition or removal of
Accounts  occurs  (after  giving  effect  thereto)  and  the  last  day  of  the
immediately preceding Due Period.

                  "Gross  Amount" shall mean,  for each  Distribution  Date with
respect  to a  Monthly  Period,  the  sum of (a)  the  Gross  Amount  Allocation
Percentage  of  Allocable Finance
<PAGE>
                                       16


Charge  Collections for the Due Period  immediately  preceding such Distribution
Date, (b) Reallocated  Investor Finance Charge Collections for such Distribution
Date and (c) the Class A Excess Investment  Proceeds for such Distribution Date,
if any.

                  "Gross Amount Allocation Percentage" shall mean 100% minus the
Floating Allocation
Percentage.

                  "Group  One" shall mean  Series  1997-3 and each other  Series
specified in the related Supplement to be included in Group One.

                  "Group One  Investor  Additional  Amounts"  shall  mean,  with
respect  to any  Distribution  Date,  the sum of (a)  Series  1997-3  Additional
Amounts  for such  Distribution  Date and (b) for all other  Series  included in
Group One, the sum of (i) the aggregate net amount by which the invested amounts
of the  Investor  Certificates  of such Series have been  reduced as a result of
investor  charge-offs,  subordination  of principal  collections and funding the
investor  default  amounts  in  respect  of any Class of such  Series as of such
Distribution  Date  and  (ii) if the  applicable  Supplements  so  provide,  the
aggregate unpaid amount of interest at the applicable certificate rates that has
accrued  on  the  amounts  described  in  the  preceding  clause  (i)  for  such
Distribution Date.

                  "Group One Investor  Default  Amount" shall mean, with respect
to any  Distribution  Date,  the sum of (a) the Series 1997-3 Default Amount for
such  Distribution  Date and (b) the  aggregate  amount of the investor  default
amounts for all other Series included in Group One for such Distribution Date.

                  "Group One Investor  Finance Charge  Collections"  shall mean,
with respect to any  Distribution  Date, the sum of (a) Investor  Finance Charge
Collections  for such  Distribution  Date and (b) the  aggregate  amount  of the
investor  finance charge  collections for all other Series included in Group One
for such Distribution Date.

                  "Group One Investor  Monthly Fees" shall mean, with respect to
any  Distribution  Date,  the sum of (a)  Series  1997-3  Monthly  Fees for such
Distribution  Date and (b) the aggregate amount of the servicing fees,  investor
fees, fees payable to any Series Enhancer and any other similar fees,  which are
payable out of reallocated  investor
<PAGE>
                                       17


finance charge collections  pursuant to the related  Supplements,  for all other
Series included in Group One for such Distribution Date.

                  "Group One Investor Monthly Interest" shall mean, with respect
to any Distribution Date, the sum of (a) Series 1997-3 Monthly Interest for such
Distribution  Date and (b) the aggregate amount of monthly  interest,  including
overdue  monthly  interest  and interest on such overdue  monthly  interest,  if
applicable,  for all other  Series  included in Group One for such  Distribution
Date.

                  "Initial  Additional  Cash  Collateral  Amount" shall mean the
aggregate amount of additional  credit  enhancement  provided by each Additional
Cash Collateral  Depositor for the benefit of the Series 1997-3  Certificates on
the related Additional Issuance Date.

                  "Initial  Cash  Collateral  Amount"  shall mean the sum of (x)
$29,787,800 and (y) the aggregate  amount of any additional  credit  enhancement
provided by the Cash  Collateral  Depositor for the benefit of the Series 1997-3
Certificates on each Additional Issuance Date.

                  "Initial Class B Additional  Collateral Amount" shall mean the
aggregate  amount  of  any  additional  credit  enhancement   provided  by  each
Additional Cash Collateral  Depositor solely for the Class B Certificates on the
related Additional Issuance Date.

                  "Initial Class B Collateral  Amount" shall mean the sum of (x)
$8,510,800  and (y) the aggregate  amount of any additional  credit  enhancement
provided by the Cash Collateral Depositor solely for the Class B Certificates on
each Additional Issuance Date.

                  "Initial Class B Enhancement Amount" shall mean the sum of the
Initial Class B Collateral Amount and the Initial Class B Additional  Collateral
Amount.

                  "Initial  Invested  Amount"  shall mean the sum of the Class A
Initial Invested Amount and the Class B Initial Invested Amount.

                  "Initial  Principal  Payment  Date"  shall  have  the  meaning
specified in Section 7.04.
<PAGE>
                                       18


                  "Initial Shared Additional  Collateral  Amount" shall mean the
aggregate  amount  of  any  additional  credit  enhancement   provided  by  each
Additional  Cash  Collateral  Depositor to be shared by the Class A Certificates
and the Class B Certificates on the related Additional Issuance Date.

                  "Initial Shared  Collateral  Amount" shall mean the sum of (x)
$21,277,000 and (y) the aggregate  amount of any additional  credit  enhancement
provided  by  the  Cash  Collateral  Depositor  to be  shared  by  the  Class  A
Certificates and the Class B Certificates on each Additional Issuance Date.

                  "Initial Shared Enhancement  Amount" shall mean the sum of the
Initial Shared Collateral  Amount and the Initial Shared  Additional  Collateral
Amount.

                  "Interest  Draw  Amount"  shall have the meaning  specified in
Section 4.11(d).

                  "Interest  Funding  Accounts"  shall mean the Class A Interest
Funding Account and the Class B Interest Funding Account.

                  "Interest  Payment  Date" shall mean the tenth day of February
and August (or, if such day is not a Business Day, the next succeeding  Business
Day),  the Class A Expected  Final  Payment Date and the Class B Expected  Final
Payment Date, commencing on the August 1997 Distribution Date.

                  "Interest  Period"  shall  mean,  with  respect to any Payment
Date, the period from and including the Payment Date immediately  preceding such
Payment Date (or, in the case of the first Payment Date,  from and including the
Closing Date) to but excluding such Payment Date.

                  "Invested  Amount"  shall mean,  when used with respect to any
date,  an amount equal to the sum of (a) the Class A Invested  Amount as of such
date and (b) the Class B Invested Amount as of such date; provided, however, for
purposes of Section 4.12(c) and Section 7.01, "Invested Amount" shall mean, when
used with  respect  to any date,  an amount  equal to the sum of (i) the Class A
Invested  Amount as of such date,  (ii) the Class B  Invested  Amount as of such
date and (iii) the CCA Invested Amount, if any, as of such date.
<PAGE>
                                       19


                  "Investor  Charge-Offs"  shall mean,  with  respect to any Due
Period,  the Class A  Investor  Charge-Offs  for such Due Period and the Class B
Investor Charge-Offs for such Due Period.

                  "Investor Finance Charge Collections" shall mean, with respect
to any Distribution Date, an amount equal to (a) the product of (i) the Floating
Allocation  Percentage  for the  related Due Period and (ii)  Allocable  Finance
Charge  Collections  deposited  in the  Collection  Account  for the related Due
Period,  minus (b) the aggregate amount of Servicer  Interchange for the related
Due Period.

                  "Investor  Principal  Collections" shall mean, with respect to
any Distribution Date, the sum of (a) the Floating Allocation  Percentage,  with
respect to the Revolving Period, or the Principal  Allocation  Percentage,  with
respect  to the  Accumulation  Period,  the  Early  Amortization  Period  or the
Principal Payment Period, of Allocable  Principal  Collections  deposited in the
Collection  Account for the related Due Period (or any partial Due Period  which
occurs as the first Due Period during the Early  Amortization  Period),  (b) the
amount, if any, of Collections of Finance Charge  Receivables and Excess Finance
Charge Collections to be distributed pursuant to Section 4.06(a)(ii) or (c)(ii),
as the case may be, on such  Distribution  Date and (c) the  amount,  if any, of
Excess  Finance  Charge  Collections  to be  distributed  pursuant  to  Sections
4.09(b), (d), (f), (h) or (i) on such Distribution Date.

                  "Loan Agreement" shall mean the agreement among the Banks, the
Trustee and the Cash Collateral  Depositor,  dated as of the date hereof, and as
may be amended from time to time.

                  "Monthly  Period"  shall  mean each  period  beginning  on and
including a Distribution  Date and ending on and including the day preceding the
following  Distribution Date; provided that the first Monthly Period shall begin
on the first  Distribution Date with respect to the Accumulation  Period and the
last Monthly  Period shall end on the day preceding the last  Distribution  Date
with respect to the Accumulation Period.

                  "Net  Servicing  Fee Rate"  shall mean (i) so long as Citibank
(South Dakota) or an Affiliate of Citibank (South Dakota) is the Servicer, 0.37%
per annum and (ii) if
<PAGE>
                                       20


Citibank  (South Dakota) or an Affiliate of Citibank (South Dakota) is no longer
the Servicer, 0.77% per annum.

                  "Payment  Date" shall mean any  Interest  Payment Date and any
Special Payment Date.

                  "Principal Allocation  Percentage" shall mean, with respect to
any Due Period,  the percentage  equivalent (which percentage shall never exceed
100%) of a fraction,  the numerator of which is the Adjusted  Invested Amount as
of the last day of the  Revolving  Period  and the  denominator  of which is the
product of (a) the total amount of Principal  Receivables in the Trust as of the
last day of the  immediately  preceding  Due Period  and (b) the  Series  1997-3
Allocation  Percentage  with  respect  to the Due Period in respect of which the
Principal Allocation Percentage is being determined;  provided,  however,  that,
with respect to any Due Period in which a Lump  Addition  occurs or a removal of
Accounts pursuant to Section 2.10 of the Agreement  occurs,  the amount referred
to in clause  (a)  shall be the  weighted  average  of the  amount of  Principal
Receivables  in the Trust on the date on which such Lump  Addition or removal of
Accounts  occurs  (after  giving  effect  thereto)  and  the  last  day  of  the
immediately preceding Due Period.

                  "Principal  Payment  Event"  shall  mean the  delivery  by the
Servicer  of a notice to the Trustee of its  election  not to extend the Initial
Principal Payment Date in accordance with Section 7.04.

                  "Principal  Payment Period" shall mean the period beginning at
the close of business on the Business  Day  immediately  preceding  the Interest
Payment Date that follows the occurrence of a Principal Payment Event and ending
upon the  earlier  to occur of (i) the  commencement  of the Early  Amortization
Period, (ii) the payment in full to the Class A Certificateholders and the Class
B  Certificateholders  of the Class A  Invested  Amount and the Class B Invested
Amount, respectively and (iii) the Series Termination Date.

                  "Reallocated  Investor Finance Charge  Collections" shall mean
that  portion of Group One  Investor  Finance  Charge  Collections  allocated to
Series 1997-3 pursuant to Section 4.12.

                  "Reassignment   Amount"  shall  mean,   with  respect  to  any
Distribution  Date,  after  giving  effect  to any  deposits  and  distributions
otherwise  to be made on such  Distribution
<PAGE>
                                       21


Date, the sum of (i) the Invested  Amount on such  Distribution  Date, plus (ii)
the CCA Invested Amount, if any, on such  Distribution  Date, plus (iii) accrued
and unpaid  interest  on the unpaid  balance of the Series  1997-3  Certificates
(calculated  on the basis of the  outstanding  principal  balance of the Class A
Certificates  and the Class B Certificates  at the Class A Certificate  Rate and
the Class B  Certificate  Rate,  respectively)  through the day  preceding  such
Distribution Date, plus (iv) the amount of Additional Interest, if any, for such
Distribution Date and any Additional  Interest  previously due but not deposited
into the  Class A  Interest  Funding  Account  or the Class B  Interest  Funding
Account, as applicable, on a prior Distribution Date.

                  "Reimbursement  Draw Amount" shall have the meaning  specified
in Section 4.11(f).

                  "Required  Amount" shall have the meaning specified in Section
4.05.

                  "Required  Credit  Enhancement  Amount" shall have the meaning
specified in Section 7.02(a).

                  "Required  Draw  Amount"  shall have the meaning  specified in
Section 4.11(c).

                  "Required  Surplus  Finance  Charge  Amount" shall mean,  with
respect to any Due Period,  an amount equal to one-twelfth of the product of (a)
the Invested Amount as of the last day of the  immediately  preceding Due Period
and (b) a decimal to be set by the  Sellers,  which shall  initially  equal zero
(and which shall never be less than zero); provided,  however, that for purposes
of Section  2.01(b) such decimal  shall at all times be deemed to be the decimal
as set by the Sellers plus 0.01. The Sellers may, from time to time,  change the
decimal to be set for  purposes of clause (b) upon notice to the  Trustee,  each
Rating Agency, the Cash Collateral Depositor and each Additional Cash Collateral
Depositor and, if such decimal is to be increased,  upon delivery by each Seller
to  the  Trustee,  the  Cash  Collateral  Depositor  and  each  Additional  Cash
Collateral Depositor of a certificate of a Vice President or more senior officer
to the effect that such Seller  reasonably  believes that such increase will not
have an Adverse Effect and is not reasonably  expected to have an Adverse Effect
at any time in the future.
<PAGE>
                                       22


                  "Revolving  Period"  shall  mean the period  beginning  at the
close of business on the Business Day immediately preceding the Cut-Off Date and
ending on the earlier of (a) the close of  business on the day the  Accumulation
Period  commences,  (b) the close of business on the day the Early  Amortization
Period commences and (c) the close of business on the day the Principal  Payment
Period commences.

                  "Sellers'  Allocable Share" shall mean, for each  Distribution
Date with respect to a Monthly  Period,  the Gross Amount for such  Distribution
Date less the sum of (a) the Class A Allocable Share for such  Distribution Date
and (b) the Class B Allocable Share for such Distribution Date.

                  "Sellers'  Percentage"  shall mean 100% minus (a) the Floating
Allocation Percentage,  when used with respect to Finance Charge Receivables and
Defaulted Receivables and Principal Receivables during the Revolving Period, and
(b) the  Principal  Allocation  Percentage,  when used with respect to Principal
Receivables during the Accumulation  Period,  the Early Amortization  Period and
the Principal Payment Period.

                  "Series 1997-3" or "Series 1997-3 Certificates" shall mean the
Series   of   Investor   Certificates   (including   any   Additional   Investor
Certificates), the terms of which are specified in this Series Supplement.

                  "Series 1997-3  Accounts"  shall have the meaning set forth in
Section 4.04(c).

                  "Series 1997-3 Additional Amounts" shall mean, with respect to
any Distribution  Date, the sum of the amounts  determined  pursuant to Sections
4.09(b), (c)(ii), (f) and (i) for such Distribution Date.

                  "Series 1997-3  Allocation  Percentage"  shall mean the Series
Allocation Percentage with respect to Series 1997-3.

                  "Series 1997-3  Certificateholders"  shall mean the Holders of
Series 1997-3 Certificates.

                  "Series 1997-3  Certificateholders'  Interest"  shall mean the
Class  A  Certificateholders'  Interest  and  the  Class  B  Certificateholders'
Interest.
<PAGE>
                                       23


                  "Series 1997-3 Default Amount" shall mean, with respect to any
Distribution  Date,  an amount equal to the Allocable  Defaulted  Amount for the
related Due Period.

                  "Series 1997-3 Excess Principal  Collections"  shall mean that
portion of Excess Principal  Collections  allocated to Series 1997-3 pursuant to
Section 4.13.

                  "Series 1997-3  Monthly Fees" shall mean,  with respect to any
Distribution  Date,  the sum of (a) the amount  determined  pursuant  to Section
4.09(g)  and (b) (i) for any  Distribution  Date with  respect to the  Revolving
Period,  the Early  Amortization  Period or the Principal  Payment  Period,  the
amounts determined  pursuant to Section  4.06(a)(iii),  Section  4.06(b)(ii) and
Section  4.09(e),  (ii) for any  Distribution  Date with  respect to any Monthly
Period,  the amounts  determined  pursuant to Section  4.06(c)(iii)  and Section
4.06(d)(ii),  or (iii) for any  Distribution  Date from and  including the March
2001  Distribution  Date,  to and including the  Distribution  Date  immediately
preceding  the Class A Expected  Final  Payment  Date,  the  amounts  determined
pursuant to Section 4.06(a)(iv) and Section 4.06(c)(iv).

                  "Series  1997-3  Monthly  Interest"  shall  mean  (a)  for any
Distribution Date with respect to the Revolving Period,  the Early  Amortization
Period or the  Principal  Payment  Period,  the amounts  determined  pursuant to
Section 4.06(a)(i) and (b)(i) and any CCA Monthly Interest for such Distribution
Date or (b) for any  Distribution  Date with respect to any Monthly Period,  the
amounts  determined  pursuant to Section  4.06(c)(i)  and (d)(i)  (excluding any
amounts relating to the Class A Funding Account Shortfall).

                  "Series  1997-3  Principal  Shortfall"  shall have the meaning
specified in Section 4.13.

                  "Series 1997-3 Subordinated Excess Principal Allocation" shall
have the meaning specified in Section 4.13.

                  "Series 1997-3 Subordinated Excess Principal  Shortfall" shall
have the meaning specified in Section 4.13.

                  "Series  Supplement"  shall  mean this  Series  Supplement  as
amended  and  supplemented  from  time to time,  including  without  limitation,
pursuant to Section 7.02.
<PAGE>
                                       24


                  "Servicer  Interchange"  shall mean,  for any Due Period,  the
product of (a) the Floating  Allocation  Percentage  for such Due Period and (b)
the portion of Allocable Finance Charge Collections  deposited in the Collection
Account  for such Due Period  that is  attributable  to  Interchange;  provided,
however, that Servicer Interchange for a Due Period shall not exceed one-twelfth
of the  product  of (i)  the sum of the  Invested  Amount  and the CCA  Invested
Amount, if any, as of the last day of the preceding Due Period and (ii) 1.50%.

                  "Servicing  Fee" shall have the meaning  specified  in Section
3.01.

                  "Servicing Fee Rate" shall mean 2.27% per annum.

                  "Special  Draw  Amount"  shall have the meaning  specified  in
Section 4.11(g).

                  "Special Payment Date" shall mean each  Distribution Date with
respect to the Early Amortization Period and the Principal Payment Period.

                  "Subordinated  Excess  Principal  Series"  shall  mean  Series
1997-3  and each  other  Series  specified  in the  related  Supplement  to be a
Subordinated Excess Principal Series.

                  "Subordinated  Principal Collections" shall mean, with respect
to  each  Distribution  Date,  the  product  of  (a)  the  Floating   Allocation
Percentage,  with respect to the Revolving Period,  or the Principal  Allocation
Percentage,  with respect to the  Accumulation  Period,  the Early  Amortization
Period or the  Principal  Payment  Period,  of Allocable  Principal  Collections
deposited in the  Collection  Account for the related Due Period (or any partial
Due Period  which occurs as the first Due Period  during the Early  Amortization
Period) and (b) the Class B Invested Percentage for such Distribution Date.

                  "Subordinated Series" shall mean any Series which, pursuant to
the terms of the related Supplement, is subordinated in any manner to the Series
1997-3 Certificates.

                  "Subordinated Series Reallocated Principal  Collections" shall
mean,  with respect to any  Distribution  Date,  that portion of  Collections of
Principal  Receivables allocable to a Subordinated Series which, pursuant to the
terms of the related  Supplement,  are to be  reallocated  to
<PAGE>
                                       25

Series  1997-3  and  treated  as  a  portion  of  Available  Investor  Principal
Collections for such Distribution Date.

                  "Surplus Finance Charge  Collections" shall mean, with respect
to any Due  Period,  the  amount  of (a)  Reallocated  Investor  Finance  Charge
Collections for the related  Distribution  Date minus (b) the sum of the amounts
(but not including any amounts relating to any Class A Funding Account Shortfall
in any such  case),  without  duplication,  determined  pursuant  to (x) Section
4.06(a)(i), (ii), (iii) and (iv) or Section 4.06(c)(i), (ii), (iii) and (iv), as
applicable,  (y) Section  4.06(b)(i) and (ii) or Section 4.06(d)(i) and (ii), as
applicable,  and (z) Section 4.09(a),  (b), (c), (d), (e), (f), (g), (h) and (i)
(which  determination  shall be made without  regard to whether such amounts are
actually paid pursuant to Section 4.06 or Section 4.09).

                  "Termination  Date" shall mean the February 2004  Distribution
Date.

                  "Termination  Proceeds"  shall mean any  Termination  Proceeds
arising out of a sale of Receivables (or interests  therein) pursuant to Section
12.02(c) of the Agreement with respect to Series 1997-3.

                  "Total  Draw  Amount"  shall  have the  meaning  specified  in
Section 4.11(i).

                  "Variable  Accumulation  Series"  shall mean each  outstanding
Series,  other than  Series  1997-3 and  Excluded  Series,  which is not a Fixed
Accumulation Series.

                  (b)  Notwithstanding  anything to the  contrary in this Series
Supplement or the Agreement,  the term "Adverse Effect" shall mean whenever used
in this Series  Supplement or the  Agreement  with respect to Series 1997-3 with
respect to any action,  that such action will (i) at the time of its  occurrence
or at any future date result in the occurrence of an  Amortization  Event,  (ii)
adversely  affect  the  amount  of  distributions  to be  made  to the  Class  A
Certificateholders  or the Class B Certificateholders or with respect to the CCA
Invested  Amount,  if any,  pursuant to this Series  Supplement or the timing of
such  distributions  or (iii)  result at any time in the future in the amount of
Surplus  Finance  Charge  Collections  averaged over any three  consecutive  Due
Periods not being in excess of the Required  Surplus  Finance  Charge Amount for
the last of such three consecutive Due Periods.
<PAGE>
                                       26

                  (c)  Notwithstanding  anything to the  contrary in this Series
Supplement or the Agreement,  the term "Rating Agency" shall mean, whenever used
in this  Series  Supplement  or the  Agreement  with  respect to Series  1997-3,
Moody's  and  Standard & Poor's.  As used in this Series  Supplement  and in the
Agreement  with respect to Series 1997-3  (including,  without  limitation,  for
purposes of the  investment  of funds in the Cash  Collateral  Account up to the
Available Shared Collateral Amount on any date),  "highest investment  category"
shall mean (i) in the case of Standard & Poor's, A-1+ or AAA, as applicable, and
(ii) in the case of  Moody's,  P-1 or Aaa,  as  applicable;  provided,  however,
notwithstanding  any provision of the Agreement or this Series  Supplement,  for
purposes of the investment of funds in the Cash Collateral  Account (but only to
the extent such funds  exceed the  Available  Shared  Enhancement  Amount on any
date) and the Class B Interest Funding Account, "highest investment category" as
used in the definition of "Eligible  Investments"  shall mean (i) in the case of
Standard & Poor's,  A-1,  A-1+ or AAA,  as  applicable,  and (ii) in the case of
Moody's, P-1 or Aaa, as applicable.

                  (d) All  capitalized  terms  used  herein  and  not  otherwise
defined herein have the meanings ascribed to them in the Agreement.

                  (e) The words "hereof",  "herein" and "hereunder" and words of
similar  import when used in this Series  Supplement  shall refer to this Series
Supplement  as a  whole  and not to any  particular  provision  of  this  Series
Supplement;  references  to any Article,  Section or Exhibit are  references  to
Articles, Sections and Exhibits in or to this Series Supplement unless otherwise
specified; and the term "including" means "including without limitation".

                  (f) The term "pro  rata" when used in this  Series  Supplement
with  respect  to  the  Cash  Collateral  Depositor  and  each  Additional  Cash
Collateral  Depositor (or the Cash  Collateral  Account and each Additional Cash
Collateral  Account,  as applicable) shall mean  proportionately  according to a
share  or  interest  in  favor of the  Cash  Collateral  Depositor  (or the Cash
Collateral  Account)  equal to the  percentage  equivalent  of a  fraction,  the
numerator  of  which  is  the  Invested  Amount  (before  giving  effect  to any
Additional Issuance with respect to which the Cash Collateral  Depositor has not
provided  additional  Series  Enhancement)  and the  denominator of which is the
Invested  Amount (after giving
<PAGE>
                                       27


effect to all Additional  Issuances  through such date of  determination)  and a
share or interest in favor of each Additional Cash Collateral  Depositor (or the
related Additional Cash Collateral  Account) equal to the percentage  equivalent
of a fraction,  the  numerator of which is the  increase in the Invested  Amount
with respect to which such  Additional  Cash  Collateral  Depositor has provided
additional Series Enhancement as a result of the related Additional Issuance and
the  denominator  of which is the Invested  Amount  (after  giving effect to all
Additional Issuances through such date of determination).

                  (g)  Notwithstanding  any  provision of the  Agreement or this
Series Supplement,  the term "Eligible Institution",  when used in the Agreement
with  respect to Series  1997-3 shall mean a  depository  institution  organized
under the laws of the United States or any one of the states thereof,  including
the District of Columbia (or a domestic branch of a foreign bank),  which at all
times (a) has (i) a long-term  unsecured  debt rating of A2 or better by Moody's
and (ii) a  certificate  of deposit  rating of P-1 by Moody's and (b) has (i) in
the  case of the  Collection  Account,  if  such  depository  institution  is an
Affiliate  of  Citicorp,  a  certificate  of deposit  rating of A-1 or better by
Standard  & Poor's  or (ii) for any  other  depository  institution  (or for any
Affiliate  of  Citicorp,  in the  case  of any  Series  Account),  either  (x) a
long-term unsecured debt rating of AAA by Standard & Poor's or (y) a certificate
of  deposit  rating  of A-1+ by  Standard  &  Poor's;  provided,  however,  that
"Eligible  Institution"  as such term is applied to a separate  Cash  Collateral
Account  established  exclusively  for  the  deposit  of  the  Initial  Class  B
Collateral  Amount  shall  have  the  meaning  stated  above  except  that  such
institution  is required,  with  respect to Standard & Poor's,  to have either a
long-term unsecured debt rating of at least A or a certificate of deposit rating
of at least A-1. However,  any deposit account  established  exclusively for the
deposit of all or a portion of the Initial  Class B Collateral  Amount shall not
otherwise be considered to be separate from the deposit  account  containing the
related  amount of the Initial  Shared  Collateral  Amount and the two  together
shall  constitute  one  Cash  Collateral   Account  for  the  purposes  of  this
Supplement.

                  Section  2.02.  Amendment to  Definition  of "Series  Adjusted
Invested  Amount".  (a)  Notwithstanding  any provision of the Agreement or this
Series  Supplement,  the
<PAGE>
                                       28


term "Series Adjusted Invested Amount" or "Adjusted Invested Amount",  when used
in the Agreement or this Series Supplement with respect to Series 1997-3,  shall
mean,  for any Due Period,  the initial  principal  amount of the Series  1997-3
Certificates  (including the initial principal amount of any Additional Investor
Certificates  issued  through such Due Period) after  subtracting  therefrom the
excess, if any, of the cumulative amount of Investor  Charge-Offs as of the last
day of the immediately preceding Due Period over the aggregate  reimbursement of
Investor Charge-Offs as of such last day.

                  (b) Each of the Sellers hereby  represents and warrants to the
Trustee as of the date of this Series  Supplement  that, on or prior to the date
of this Series  Supplement,  the conditions set forth in Section 13.01(a) of the
Agreement have been satisfied with respect to the amendment set forth in Section
2.02(a).


                                   ARTICLE III

                              Servicer and Trustee

                  Section 3.01. Servicing Compensation.  A monthly servicing fee
(the  "Servicing  Fee") shall be payable to the  Servicer,  in arrears,  on each
Distribution  Date in respect of any Due Period (or portion  thereof)  occurring
prior to the earlier of the first  Distribution  Date following the  Termination
Date and the first  Distribution  Date on which the Invested  Amount and the CCA
Invested Amount, if any, are zero, in the aggregate amount specified below.

                  On each Distribution Date,  Servicer  Interchange with respect
to the related Due Period that is on deposit in the Collection  Account shall be
withdrawn from the  Collection  Account and paid to the Servicer in payment of a
portion of the  Servicing  Fee payable by the Series  1997-3  Certificateholders
with respect to such Due Period.

                  The  share  of the  Servicing  Fee  allocable  to the  Class A
Certificateholders   (after  giving  effect  to  the  distribution  of  Servicer
Interchange, if any, to the Servicer) with respect to any Distribution Date (the
"Class A Monthly Servicing Fee") shall be equal to one-twelfth of the product of
(a) the Net Servicing Fee Rate,  (b) the sum of the Invested  Amount and the CCA
Invested
<PAGE>
                                       29


Amount,  if any,  as of the last day of the Due  Period  second  preceding  such
Distribution  Date and (c) the Class A Invested  Percentage with respect to such
Distribution  Date;  provided,  however,  with respect to the first Distribution
Date,  the Class A Monthly  Servicing  Fee shall be equal to the  Servicing  Fee
accrued on the Class A Initial Invested Amount at the Net Servicing Fee Rate for
the period from the Closing Date to but excluding the first  Distribution  Date,
calculated  on the basis of a 360-day year of twelve  30-day months and provided
further,  that with  respect to the first  Distribution  Date of the related Due
Period in which an Additional Issuance Date occurs the Class A Monthly Servicing
Fee  shall  be  increased  by an  amount  equal  to the  product  of (a) the Net
Servicing  Fee Rate,  (b) a  fraction,  the  numerator  of which is 30 minus the
actual  number of days in the  period  from and  including  the tenth day of the
calendar  month in which such  Additional  Issuance Date occurs to but excluding
such Additional Issuance Date and the denominator of which is 360, times (c) the
increase in the Invested  Amount after giving  effect to the related  Additional
Issuance  and  (d)  the  Class  A  Invested  Percentage  with  respect  to  such
Distribution  Date.  The share of the  Servicing  Fee  allocable  to the Class B
Certificateholders   (after  giving  effect  to  the  distribution  of  Servicer
Interchange, if any, to the Servicer) with respect to any Distribution Date (the
"Class B Monthly Servicing Fee") shall be equal to one-twelfth of the product of
(a) the Net Servicing Fee Rate,  (b) the sum of the Invested  Amount and the CCA
Invested  Amount,  if any, as of the last day of the Due Period second preceding
such Distribution  Date and (c) the Class B Invested  Percentage with respect to
such  Distribution  Date;   provided,   however,   with  respect  to  the  first
Distribution  Date,  the  Class B  Monthly  Servicing  Fee shall be equal to the
Servicing  Fee  accrued  on the  Class  B  Initial  Invested  Amount  at the Net
Servicing  Fee Rate for the period from the Closing  Date to but  excluding  the
first  Distribution  Date,  calculated  on the basis of a 360-day year of twelve
30-day months and provided further,  that with respect to the first Distribution
Date of the related Due Period in which an Additional  Issuance Date occurs, the
Class B Monthly  Servicing  Fee  shall be  increased  by an amount  equal to the
product of (a) the Net  Servicing  Fee Rate,  (b) a fraction,  the  numerator of
which is 30 minus the actual number of days in the period from and including the
tenth day of the calendar month in which such Additional Issuance Date occurs to
but excluding such Additional Issuance Date and the denominator of which is 360,
times
<PAGE>
                                       30


(c) the  increase in the  Invested  Amount  after  giving  effect to the related
Additional Issuance and (d) the Class B Invested Percentage with respect to such
Distribution  Date.  The share of the  Servicing  Fee  allocable,  on a pro rata
basis,  to the Cash  Collateral  Depositor and each  Additional  Cash Collateral
Depositor (after giving effect to the distribution of Servicer  Interchange,  if
any, to the  Servicer)  with respect to any  Distribution  Date  relating to the
Early Amortization Period,  following the Distribution Date on which the Class A
Invested  Amount  and the  Class B  Invested  Amount  are paid in full (the "CCA
Monthly Servicing Fee"), shall be equal to one-twelfth of the product of (a) the
Net Servicing Fee Rate and (b) the CCA Invested  Amount,  if any, as of the last
day of the Due Period second preceding such Distribution Date.

                  On each Distribution  Date, the Sellers shall pay a portion of
the  Servicing  Fee with respect to the related Due Period in an amount equal to
one-twelfth  of the  product of (a) the  Servicing  Fee Rate,  (b) the  Sellers'
Participation  Amount as of the last day of the Due Period second preceding such
Distribution  Date (or,  if a Lump  Addition  occurs or a  removal  of  Accounts
pursuant to Section 2.10 of the  Agreement  occurs in the  following Due Period,
the weighted average of the Sellers'  Participation  Amount on the date on which
such Lump Addition or removal of Accounts  occurs (after giving effect  thereto)
and the last day of the second  preceding  Due Period) and (c) the Series 1997-3
Allocation  Percentage for the related Due Period.  In no event shall the Trust,
the  Trustee,  the  Series  1997-3  Certificate-holders,   the  Cash  Collateral
Depositor or any Additional Cash Collateral Depositor be liable for the share of
the Servicing Fee to be paid by the Sellers.

                  The (i) Class A Monthly  Servicing Fee shall be payable to the
Servicer solely to the extent amounts are available for distribution pursuant to
Section  4.06(a)(iii)  or  (c)(iii),  as the case may be,  (ii)  Class B Monthly
Servicing Fee shall be payable to the Servicer  solely to the extent amounts are
available for distribution  pursuant to Section  4.06(b)(ii) or (d)(ii),  as the
case may be,  and (iii)  CCA  Monthly  Servicing  Fee  shall be  payable  to the
Servicer solely to the extent amounts are available for distribution pursuant to
Section 4.09(e).

                  Section 3.02.  Trustee  Appointment of Agents. The Trustee may
appoint  one  or  more  agents  to  perform   any  of  the
<PAGE>
                                       31


Trustee's duties, responsibilities or obligations with respect to Series 1997-3;
provided,  however,  that regardless of the appointment of any agent pursuant to
this Section 3.02, the Trustee shall continue to be fully responsible for all of
its duties, responsibilities and obligations with respect to Series 1997-3.


                                   ARTICLE IV

                 Rights of Series 1997-3 Certificateholders and
                    Allocation and Application of Collections

                  Section 4.01.  Allocations.  (a)  Allocations.  Collections of
Finance Charge Receivables and Principal Receivables,  Defaulted Receivables and
Miscellaneous  Payments allocated to Series 1997-3 pursuant to Article IV of the
Agreement (and, as described herein,  Collections of Finance Charge  Receivables
reallocated  from other Series in Group One) shall be allocated and  distributed
or reallocated as set forth in this Article.

                  (b) Payments to Sellers.  The Servicer shall withdraw from the
Collection  Account  and pay to the  Sellers  on the dates  set forth  below the
following amounts:

                           (i) on Deposit Dates with respect to the Revolving
                  Period, the Early Amortization Period and the Principal
                  Payment Period:

                                    (A)  an   amount   equal  to  the   Sellers'
                           Percentage  for the related  Due Period of  Allocable
                           Finance Charge Collections, minus, if Citibank (South
                           Dakota) or an Affiliate of Citibank (South Dakota) is
                           no longer the Servicer,  the portion of the Servicing
                           Fee with  respect to the  related  Due Period that is
                           required  to be paid by the Sellers  (which  shall be
                           withdrawn from the Collection Account and paid to the
                           Servicer on the related Distribution Date); and

                                    (B)  an   amount   equal  to  the   Sellers'
                           Percentage  for the related  Due Period of  Allocable
                           Principal Collections,  if the Sellers' Participation
                           Amount   (determined   after  giving  effect  to  any
                           Principal  Receivables  transferred  to the  Trust on
                           such Deposit Date) exceeds zero; and
<PAGE>
                                       32


                           (ii) on Deposit Dates with respect to any Monthly
                  Period:

                                    (A)  an   amount   equal  to  the   Sellers'
                           Allocable  Share for the related  Distribution  Date,
                           minus,  if Citibank (South Dakota) or an Affiliate of
                           Citibank  (South  Dakota) is no longer the  Servicer,
                           the portion of the  Servicing Fee with respect to the
                           related Due Period that is required to be paid by the
                           Sellers (which shall be withdrawn from the Collection
                           Account  and  paid  to the  Servicer  on the  related
                           Distribution Date); and

                                    (B)  an   amount   equal  to  the   Sellers'
                           Percentage  for the related  Due Period of  Allocable
                           Principal Collections,  if the Sellers' Participation
                           Amount   (determined   after  giving  effect  to  any
                           Principal  Receivables  transferred  to the  Trust on
                           such Deposit Date) exceeds zero.

                  The  withdrawals  to  be  made  from  the  Collection  Account
pursuant to this Section  4.01(b) do not apply to deposits  into the  Collection
Account that do not represent  Collections,  including Transfer Deposit Amounts,
Adjustment Payments,  payment of the purchase price for the  Certificateholders'
Interest  pursuant  to Section  2.06 or 10.01 of the  Agreement,  payment of the
purchase price for the Series 1997-3  Certificateholders'  Interest  pursuant to
Section 7.01 of this Series  Supplement and proceeds from the sale,  disposition
or  liquidation  of  Receivables  pursuant  to  Section  9.02  or  12.02  of the
Agreement.

                  Section  4.02.  Determination  of  Monthly  Interest.  (a) The
amount of monthly interest ("Class A Monthly  Interest")  distributable from the
Collection  Account with respect to the Class A Certificates on any Distribution
Date shall be an amount equal to  one-twelfth  of the product of (i) the Class A
Certificate  Rate and (ii) the  outstanding  principal  balance  of the  Class A
Certificates  as of the close of business  on the  preceding  Distribution  Date
(after giving effect to any  distribution  of Class A Monthly  Principal on such
preceding  Distribution Date), minus, for each Distribution Date with respect to
the Accumulation Period, the aggregate amount of all deposits of Class A Monthly
Principal  previously made to the Class A Principal  Funding Account;  provided,
however,  with respect to the first  Distribution Date, Class A Monthly Interest
shall be equal
<PAGE>
                                       33


to  $2,279,666.67,  and  provided  further,  that  with  respect  to  the  first
Distribution Date of the related Due Period in which an Additional Issuance Date
occurs,  Class A Monthly  Interest  shall be increased by the amount of interest
accrued and payable at the Class A Certificate  Rate on the principal  amount of
Additional Class A Certificates  through but excluding such  Distribution  Date.
Class A Monthly  Interest  shall be calculated on the basis of a 360-day year of
twelve 30-day months.

                  On the  Determination  Date  preceding  each Payment Date, the
Servicer shall determine the excess,  if any (the "Class A Interest  Shortfall")
of (x) the aggregate Class A Monthly Interest plus the aggregate Class A Covered
Amount for the  Interest  Period  applicable  to such  Payment Date over (y) the
amount which will be on deposit in the Class A Interest  Funding Account on such
Payment Date. If the Class A Interest Shortfall with respect to any Payment Date
is greater than zero, an additional amount ("Class A Additional Interest") equal
to one-twelfth of the product of (i) the Class A Certificate  Rate and (ii) such
Class A Interest  Shortfall  (or the portion  thereof which has not been paid to
Class A Certificateholders)  shall be payable as provided herein with respect to
the Class A Certificates on each  Distribution  Date following such Payment Date
to and  including  the Payment Date on which such Class A Interest  Shortfall is
paid to Class A  Certificateholders.  Notwithstanding  anything to the  contrary
herein,  Class A Additional  Interest shall be payable or distributed to Class A
Certificateholders only to the extent permitted by applicable law.

                  (b)  The  amount  of  monthly   interest   ("Class  B  Monthly
Interest") distributable from the Collection Account with respect to the Class B
Certificates on any Distribution Date shall be an amount equal to one-twelfth of
the  product of (i) the Class B  Certificate  Rate and (ii) the Class B Invested
Amount as of the close of business  on the  preceding  Distribution  Date (after
giving effect to any increase or decrease in the Class B Invested Amount on such
preceding  Distribution  Date);  provided,  however,  with  respect to the first
Distribution  Date, Class B Monthly Interest shall be equal to $148,749.22,  and
provided  further,  that  with  respect  to the first  Distribution  Date of the
related Due Period in which an Additional Issuance Date occurs,  Class B Monthly
Interest shall be increased by the amount of interest accrued and payable at the
Class  B  Certificate  Rate
<PAGE>
                                       34


on the principal amount of Additional Class B Certificates through but excluding
such  Distribution  Date.  Class B Monthly  Interest  shall be calculated on the
basis of a 360-day year of twelve 30-day months.

                  On the  Determination  Date  preceding  each Payment Date, the
Servicer shall determine the excess, if any (the "Class B Interest  Shortfall"),
of (x) the aggregate Class B Monthly Interest for the Interest Period applicable
to such Payment Date over (y) the amount which will be on deposit in the Class B
Interest Funding Account on such Payment Date. If the Class B Interest Shortfall
with  respect to any Payment  Date is greater than zero,  an  additional  amount
("Class B Additional  Interest")  equal to one-twelfth of the product of (i) the
Class B  Certificate  Rate and (ii)  such  Class B  Interest  Shortfall  (or the
portion thereof which has not been paid to Class B Certificateholders)  shall be
payable as provided  herein  with  respect to the Class B  Certificates  on each
Distribution  Date following such Payment Date to and including the Payment Date
on which such Class B Interest Shortfall is paid to Class B  Certificateholders.
Notwithstanding  anything to the contrary  herein,  Class B Additional  Interest
shall be payable or distributed to Class B Certificateholders only to the extent
permitted by applicable law.

                  Section  4.03.  Determination  of Monthly  Principal.  (a) The
amount of monthly principal ("Class A Monthly Principal") distributable from the
Collection Account with respect to the Class A Certificates on each Distribution
Date beginning with the first to occur of (i) the first Special Payment Date, if
any,  and  (ii)  the  first  Distribution  Date to  occur  with  respect  to the
Accumulation  Period,  shall  be  equal  to  the  Available  Investor  Principal
Collections  on  deposit  in  the  Collection   Account  with  respect  to  such
Distribution  Date;  provided,  however,  that for each  Distribution  Date with
respect to any Monthly  Period,  Class A Monthly  Principal shall not exceed the
Controlled  Distribution Amount for such Distribution Date; and provided further
that Class A Monthly Principal shall not exceed the Class A Invested Amount.

                  (b)  The  amount  of  monthly   principal  ("Class  B  Monthly
Principal")  distributable from the Collection Account with respect to the Class
B Certificates  on each  Distribution  Date beginning with the Class B Principal
Commencement   Date,  shall  be  equal  to  the  Available   Investor
<PAGE>
                                       35


Principal  Collections on deposit in the Collection Account with respect to such
Distribution  Date  (minus the  portion  of such  Available  Investor  Principal
Collections  applied to Class A Monthly  Principal on such  Distribution  Date);
provided,  however,  that Class B Monthly Principal shall not exceed the Class B
Invested Amount.

                  Section 4.04.  Establishment of Funding  Accounts.  (a)(i) The
Servicer, for the benefit of the Class A Certificateholders, shall establish and
maintain in the name of the Trustee, on behalf of the Trust, an Eligible Deposit
Account (the "Class A Interest Funding Account"),  bearing a designation clearly
indicating  that the funds  deposited  therein  are held for the  benefit of the
Class A Certificateholders. The Class A Interest Funding Account shall initially
be established with Citibank, N.A.

                  (ii)  The   Servicer,   for  the   benefit   of  the  Class  B
Certificateholders,  shall establish and maintain in the name of the Trustee, on
behalf of the Trust, an Eligible  Deposit Account (the "Class B Interest Funding
Account"),  bearing a designation  clearly  indicating  that the funds deposited
therein are held for the benefit of the Class B Certificateholders.  The Class B
Interest Funding Account shall initially be established with Citibank, N.A.

                  (iii) At the  direction of the  Servicer,  funds on deposit in
the  Interest  Funding  Accounts  shall be  invested  by the Trustee in Eligible
Investments  selected by the Servicer.  All such Eligible  Investments  shall be
held by the  Trustee for the  benefit of the Class A  Certificateholders  or the
Class B  Certificateholders,  as applicable;  provided that on each Distribution
Date, all interest and other  investment  earnings (net of losses and investment
expenses) on funds on deposit in the Interest  Funding Accounts shall be paid to
the  Sellers.   Funds  deposited  in  the  Interest   Funding  Accounts  on  any
Distribution  Date (which are not distributed to Class A  Certificateholders  or
Class B  Certificateholders,  as  applicable,  pursuant to Section  4.07 on such
Distribution Date) shall be invested in Eligible Investments that will mature so
that such funds will be available at the close of business on the Transfer  Date
preceding the following  Distribution  Date.  Funds deposited in either Interest
Funding Account on a Transfer Date (which  immediately  precedes a Payment Date)
upon the  maturity of any Eligible  Investments  are not required to be invested
overnight.
<PAGE>
                                       36


                  (b)(i)  The   Servicer,   for  the  benefit  of  the  Class  A
Certificateholders,  shall establish and maintain in the name of the Trustee, on
behalf of the Trust, an Eligible Deposit Account (the "Class A Principal Funding
Account"),  bearing a designation  clearly  indicating  that the funds deposited
therein are held for the benefit of the Class A Certificateholders.  The Class A
Principal Funding Account shall initially be established with Citibank, N.A.

                  (ii) At the direction of the Servicer, funds on deposit in the
Class A Principal  Funding  Account shall be invested by the Trustee in Eligible
Investments  selected by the Servicer.  All such Eligible  Investments  shall be
held by the Trustee for the benefit of the Class A Certificateholders;  provided
that on each  Distribution Date all interest and other investment income (net of
investment  expenses) on funds on deposit  therein shall be applied as set forth
in clause (iii) below. Funds on deposit in the Class A Principal Funding Account
shall be invested in  Eligible  Investments  that will mature so that such funds
will be available at the close of business on the Transfer  Date  preceding  the
following  Distribution  Date. Funds deposited in the Class A Principal  Funding
Account on a Transfer Date (which immediately  precedes a Payment Date) upon the
maturity of any Eligible Investments are not required to be invested overnight.

                  (iii)  On  each   Distribution   Date  with   respect  to  the
Accumulation  Period,  the Servicer  shall  withdraw  from the Class A Principal
Funding Account and deposit in the Class A Interest Funding Account all interest
and other  investment  income  (net of  investment  expenses)  on funds  then on
deposit in the Class A Principal Funding Account; provided,  however, that Class
A Excess  Investment  Proceeds,  if any, with respect to any Distribution  Date,
shall be  deposited  in the  Collection  Account and treated as a portion of the
Gross Amount.

                  (iv) Reinvested  interest and other investment income on funds
deposited in the Class A Principal Funding Account shall not be considered to be
principal amounts on deposit therein for purposes of this Series Supplement.

                  (c)(i) The Trustee shall possess all right, title and interest
in all funds on deposit from time to time in the Interest  Funding  Accounts and
the  Class  A  Principal  Funding  Account  (collectively,  the  "Series  1997-3
Accounts")
<PAGE>
                                       37


and in all proceeds thereof.  The Series 1997-3 Accounts shall be under the sole
dominion   and   control  of  the  Trustee  for  the  benefit  of  the  Class  A
Certificateholders, Class B Certificateholders, the Cash Collateral Depositor or
any Additional Cash Collateral  Depositor,  as the case may be. If, at any time,
any of the Series 1997-3 Accounts ceases to be an Eligible Deposit Account,  the
Trustee (or the Servicer on its behalf)  shall within 10 Business  Days (or such
longer  period,  not to exceed 30 calendar  days, as to which each Rating Agency
may  consent)  establish a new Series  1997-3  Account  meeting  the  conditions
specified in paragraph  (a)(i) or (ii) or (b)(i)  above,  as  applicable,  as an
Eligible  Deposit  Account and shall transfer any cash and/or any investments to
such new Series 1997-3 Account.

                  (ii)  Pursuant  to the  authority  granted to the  Servicer in
Section 3.01(b) of the Agreement,  the Servicer shall have the power,  revocable
by the Trustee,  to make  withdrawals and payments or to instruct the Trustee to
make  withdrawals  and payments from the Series 1997-3 Accounts for the purposes
of carrying out the Servicer's or Trustee's  duties  hereunder.  Pursuant to the
authority  granted to the Paying Agent in Section 5.01 of this Series Supplement
and  Section  6.07 of the  Agreement,  the  Paying  Agent  shall have the power,
revocable by the Trustee,  to withdraw funds from the Series 1997-3 Accounts for
the purpose of making distributions to the Series 1997-3 Certificateholders.

                  Section   4.05.   Required   Amount.   With  respect  to  each
Distribution  Date,  on the  related  Determination  Date,  the  Servicer  shall
determine the amount (the  "Required  Amount"),  if any, by which (a) the sum of
(i)  Class A  Monthly  Interest  for such  Distribution  Date,  (ii) any Class A
Monthly  Interest  previously  due but not  deposited  in the  Class A  Interest
Funding Account on a prior Distribution Date, (iii) Class A Additional Interest,
if any,  for  such  Distribution  Date  and  any  Class  A  Additional  Interest
previously due but not deposited into the Class A Interest  Funding Account on a
prior  Distribution  Date (but not including any amount  relating to any Class A
Funding Account  Shortfall),  (iv) at such time as Citibank (South Dakota) or an
Affiliate  of Citibank  (South  Dakota) is no longer the  Servicer,  the Class A
Monthly  Servicing Fee for such  Distribution  Date and (v) the Class A Investor
Default Amount, if any, for such Distribution Date exceeds (b)(i) the product of
(x) Reallocated  Investor Finance Charge  Collections for such Distribution Date
and (y) the
<PAGE>
                                       38


Class A Invested  Percentage for such Distribution  Date, minus (ii) if Citibank
(South Dakota) or an Affiliate of Citibank  (South Dakota) is the Servicer,  the
portion of the Class A Monthly  Servicing  Fee for such  Distribution  Date that
will be paid on such  Distribution  Date  pursuant  to Section  4.06(a)(iii)  or
(c)(iii),  as the case may be, out of funds on deposit in the Collection Account
available  therefor.  The Servicer will give the Trustee  notice of the Required
Amount on any  Determination  Date on which  the  Servicer  determines  that the
Required Amount is greater than zero.

                  Section 4.06.  Application  of  Reallocated  Investor  Finance
Charge Collections and Available Investor  Principal  Collections.  The Servicer
shall apply (if  Citibank  (South  Dakota) is the  Servicer  and the  Collection
Account is maintained  with Citibank  (South Dakota)) or shall cause the Trustee
to apply, on each Distribution Date, Allocable Finance Charge Collections (other
than any portion thereof reallocated to other Series in Group One),  Collections
of Finance Charge Receivables  reallocated to Series 1997-3 from other Series in
Group  One and  Available  Investor  Principal  Collections  on  deposit  in the
Collection Account with respect to such Distribution Date, to make the following
distributions:

                  (a) Subject to Section 4.06(c),  on each Distribution Date, an
amount  equal  to  the  product  of  (x)  Reallocated  Investor  Finance  Charge
Collections with respect to such  Distribution Date and (y) the Class A Invested
Percentage  for such  Distribution  Date,  will be  distributed in the following
priority;  provided,  however,  that if such funds on deposit in the  Collection
Account  available  therefor  are less than the sum of the amounts  specified in
paragraphs  (i), (ii) and (iii) below,  such funds shall be allocated among such
paragraphs  in  proportion  to the  respective  amounts  specified  in each such
paragraph;   and  provided   further  that  funds   allocated  to  the  Class  A
Certificateholders  pursuant  to  paragraphs  (i) and (ii) below will be applied
first to the amount specified under paragraph (i) below and second to the amount
specified under paragraph (ii) below:

                           (i) an amount  equal to Class A Monthly  Interest for
                  such Distribution Date, plus the amount of any Class A Monthly
                  Interest  previously  due but not  deposited  into the Class A
                  Interest  Funding Account on a
<PAGE>
                                       39


                  prior  Distribution  Date,  plus  the  amount  of any  Class A
                  Additional Interest for such Distribution Date and any Class A
                  Additional  Interest previously due but not deposited into the
                  Class A Interest Funding Account on a prior Distribution Date,
                  plus the  amount  of any  Class A  Funding  Account  Shortfall
                  previously  due but not  deposited  into the Class A  Interest
                  Funding  Account  on  a  prior   Distribution  Date  shall  be
                  deposited  by the  Servicer  or the  Trustee  into the Class A
                  Interest Funding Account;

                           (ii) an amount equal to the Class A Investor  Default
                  Amount  for  such  Distribution  Date  shall be  treated  as a
                  portion   of   Investor   Principal   Collections   for   such
                  Distribution Date;

                           (iii)  an  amount   equal  to  the  Class  A  Monthly
                  Servicing Fee for such  Distribution Date shall be distributed
                  to the Servicer  (unless  such amount has been netted  against
                  deposits to the Collection Account);

                           (iv) on each  Distribution  Date  beginning  with the
                  March 2001 Distribution Date to but excluding the Distribution
                  Date with respect to the first Monthly Period, an amount equal
                  to the Class A Investment  Fee, if any, for such  Distribution
                  Date shall be distributed  to the Sellers  (unless such amount
                  has been netted against  deposits to the Collection  Account);
                  and

                           (v) the  balance,  if any,  shall  constitute  Excess
                  Finance  Charge   Collections   and  shall  be  allocated  and
                  distributed as set forth in Section 4.09.

                  (b) Subject to Section 4.06(d),  on each Distribution Date, an
amount  equal  to  the  product  of  (x)  Reallocated  Investor  Finance  Charge
Collections with respect to such  Distribution Date and (y) the Class B Invested
Percentage  for such  Distribution  Date,  will be  distributed in the following
priority;  provided,  however,  that if such funds on deposit in the  Collection
Account  available  therefor  are less than the sum of the amounts  specified in
paragraphs  (i) and (ii)  below,  such funds  shall be  allocated  between  such
paragraphs  in  proportion  to the  respective  amounts  specified  in each such
paragraph:
<PAGE>
                                       40


                           (i) an amount  equal to Class B Monthly  Interest for
                  such Distribution Date, plus the amount of any Class B Monthly
                  Interest  previously  due but not  deposited  into the Class B
                  Interest  Funding Account on a prior  Distribution  Date, plus
                  the  amount  of any  Class  B  Additional  Interest  for  such
                  Distribution   Date  and  any  Class  B  Additional   Interest
                  previously  due but not  deposited  into the Class B  Interest
                  Funding  Account  on  a  prior  Distribution  Date,  shall  be
                  deposited  by the  Servicer  or the  Trustee  into the Class B
                  Interest Funding Account;

                           (ii) an amount equal to the Class B Monthly Servicing
                  Fee for such  Distribution  Date shall be  distributed  to the
                  Servicer  (unless such amount has been netted against deposits
                  to the Collection Account); and

                           (iii) the balance,  if any, shall  constitute  Excess
                  Finance  Charge   Collections   and  shall  be  allocated  and
                  distributed as set forth in Section 4.09.

                  (c) On  each  Distribution  Date  with  respect  to a  Monthly
Period,  an amount  equal to the Class A  Allocable  Share with  respect to such
Distribution  Date will be  distributed  in the  following  priority;  provided,
however,  that if such  funds on  deposit in the  Collection  Account  available
therefor are less than the sum of the amounts  specified in paragraphs (i), (ii)
and (iii)  below,  such  funds  shall be  allocated  among  such  paragraphs  in
proportion  to the  respective  amounts  specified in each such  paragraph;  and
provided further that funds allocated to the Class A Certificateholders pursuant
to paragraphs  (i) and (ii) below will be applied first to the amount  specified
under  paragraph (i) below and second to the amount  specified  under  paragraph
(ii) below:

                           (i) an amount  equal to Class A Monthly  Interest for
                  such Distribution Date, plus the amount of any Class A Monthly
                  Interest  previously  due but not  deposited  into the Class A
                  Interest  Funding Account on a prior  Distribution  Date, plus
                  (without  duplication)  the  amount  of any  Class  A  Funding
                  Account Shortfall for such Distribution Date and the amount of
                  any Class A Funding Account  Shortfall  previously due but not
                  deposited into the Class A Interest Funding Account on a prior
                  Distribution  Date,  plus the amount of any
<PAGE>
                                       41


                  Class A Additional Interest for such Distribution Date and any
                  Class A Additional  Interest  previously due but not deposited
                  into  the  Class  A  Interest   Funding  Account  on  a  prior
                  Distribution  Date,  shall be deposited by the Servicer or the
                  Trustee into the Class A Interest Funding Account;

                           (ii) an amount equal to the Class A Investor  Default
                  Amount  for  such  Distribution  Date  shall be  treated  as a
                  portion   of   Investor   Principal   Collections   for   such
                  Distribution Date;

                           (iii)  an  amount   equal  to  the  Class  A  Monthly
                  Servicing Fee for such  Distribution Date shall be distributed
                  to the Servicer  (unless  such amount has been netted  against
                  deposits to the Collection Account);

                           (iv) prior to and  including  the  Distribution  Date
                  immediately preceding the Class A Expected Final Payment Date,
                  an amount  equal to the Class A  Investment  Fee, if any,  for
                  such  Distribution  Date shall be  distributed  to the Sellers
                  (unless  such amount has been netted  against  deposits to the
                  Collection Account); and

                           (v) the  balance,  if any,  shall  constitute  Excess
                  Finance  Charge   Collections   and  shall  be  allocated  and
                  distributed as set forth in Section 4.09.

                  (d) On  each  Distribution  Date  with  respect  to a  Monthly
Period,  an amount  equal to the Class B  Allocable  Share with  respect to such
Distribution  Date will be  distributed  in the  following  priority;  provided,
however,  that if such  funds on  deposit in the  Collection  Account  available
therefor are less than the sum of the amounts  specified in  paragraphs  (i) and
(ii) below,  such funds shall be allocated between such paragraphs in proportion
to the respective amounts specified in each such paragraph:

                           (i) an amount  equal to Class B Monthly  Interest for
                  such Distribution Date, plus the amount of any Class B Monthly
                  Interest  previously  due but not  deposited  into the Class B
                  Interest  Funding Account on a prior  Distribution  Date, plus
                  the  amount  of any  Class  B  Additional  Interest  for  such
                  Distribution   Date  and  any  Class  B  Additional   Interest
                  previously  due but not  deposited  into the Class B  Interest
                  Funding  Account  on
<PAGE>
                                       42


                  a prior  Distribution Date, shall be deposited by the Servicer
                  or the Trustee into the Class B Interest Funding Account;

                           (ii) an amount equal to the Class B Monthly Servicing
                  Fee for such  Distribution  Date shall be  distributed  to the
                  Servicer  (unless such amount has been netted against deposits
                  to the Collection Account); and

                           (iii) the balance,  if any, shall  constitute  Excess
                  Finance  Charge   Collections   and  shall  be  allocated  and
                  distributed as set forth in Section 4.09.

                  (e) On each  Distribution  Date with respect to the  Revolving
Period,  an  amount  equal  to  the  Available  Investor  Principal  Collections
deposited in the Collection  Account for the related Due Period shall be treated
as Excess  Principal  Collections and applied in accordance with Section 4.04 of
the Agreement.

                  (f) On each Distribution Date with respect to the Accumulation
Period, the Early Amortization Period or the Principal Payment Period, an amount
equal to Available  Investor Principal  Collections  deposited in the Collection
Account  for the  related  Due  Period  will  be  distributed  in the  following
priority:

                           (i) an amount equal to Class A Monthly  Principal for
                  such  Distribution  Date,  up to the Class A Invested  Amount,
                  shall be  deposited  by the  Servicer or the Trustee  into the
                  Class A Principal Funding Account;

                           (ii) for each  Distribution  Date with respect to the
                  Accumulation   Period   prior   to  the   Class  B   Principal
                  Commencement  Date, unless an Amortization Event has occurred,
                  after giving effect to the distribution  referred to in clause
                  (i) above,  an amount  equal to the  balance,  if any, of such
                  Available  Investor  Principal  Collections then on deposit in
                  the  Collection  Account shall be treated as Excess  Principal
                  Collections and applied in accordance with Section 4.04 of the
                  Agreement;

                           (iii) for each Distribution Date,  beginning with the
                  Class B Principal  Commencement  Date,  after giving effect to
                  the  distribution  referred to in clause (i)
<PAGE>
                                       43


                  above,  an  amount  equal  to the  balance,  if  any,  of such
                  Available  Investor  Principal  Collections then on deposit in
                  the  Collection  Account,  to the  extent  of Class B  Monthly
                  Principal, shall be distributed by the Servicer or the Trustee
                  to the Class B Certificateholders;

                           (iv) for each  Distribution  Date with respect to the
                  Early  Amortization  Period,  beginning with the  Distribution
                  Date on which  the  Class A  Invested  Amount  and the Class B
                  Invested  Amount are paid in full,  after giving effect to the
                  distributions  referred  to  above,  an  amount  equal  to the
                  balance,   if  any,  of  such  Available   Investor  Principal
                  Collections then on deposit in the Collection  Account, to the
                  extent of CCA Monthly Principal, if any, shall be distributed,
                  pro  rata,  by  the  Servicer  or  the  Trustee  to  the  Cash
                  Collateral  Depositor  and  each  Additional  Cash  Collateral
                  Depositor,  in  accordance  with the Loan  Agreement  and each
                  Additional Loan Agreement, respectively; and

                           (v) for each  Distribution  Date, after giving effect
                  to the distributions referred to above, an amount equal to the
                  balance,   if  any,  of  such  Available   Investor  Principal
                  Collections then on deposit in the Collection Account shall be
                  treated  as  Excess  Principal   Collections  and  applied  in
                  accordance with Section 4.04 of the Agreement.

                  Section     4.07.     Distributions     to    Series    1997-3
Certificateholders.  (a) The Servicer shall make (if Citibank  (South Dakota) is
the Servicer and the  Collection  Account is  maintained  with  Citibank  (South
Dakota)) or shall cause the Trustee to make the following  distributions  at the
following  times  from the  Class A  Interest  Funding  Account  and the Class A
Principal Funding Account:

                           (i) on each Payment  Date,  all amounts on deposit in
                  the Class A Interest  Funding  Account shall be distributed to
                  the    Paying    Agent   for    payment   to   the   Class   A
                  Certificateholders; and

                           (ii) on each Special  Payment Date and on the Class A
                  Expected  Final  Payment  Date,  all amounts on deposit in the
                  Class A Principal Funding Account,  to the extent of the Class
                  A Invested  Amount,  shall be
<PAGE>
                                       44


                  distributed  to the  Paying  Agent for  payment to the Class A
                  Certificateholders.

                  (b) The Servicer shall make (if Citibank (South Dakota) is the
Servicer and the Collection  Account is maintained with Citibank (South Dakota))
or shall cause the Trustee to make the following  distributions at the following
times from the Class B Interest Funding Account and the Collection Account:

                           (i) on each Payment  Date,  all amounts on deposit in
                  the Class B Interest  Funding  Account shall be distributed to
                  the    Paying    Agent   for    payment   to   the   Class   B
                  Certificateholders; and

                           (ii) on each Special  Payment Date and on the Class B
                  Expected  Final  Payment  Date,  all amounts on deposit in the
                  Collection  Account which are to be distributed to the Class B
                  Certificateholders  pursuant to this Series Supplement, to the
                  extent of the  principal  amount of the Class B  Certificates,
                  shall be  distributed  to the Paying  Agent for payment to the
                  Class B Certificateholders.

                  (c) The  distributions to be made pursuant to this Section are
subject  to the  provisions  of  Sections  2.06,  9.02,  10.01  and 12.02 of the
Agreement and Sections 8.01 and 8.02 of this Series Supplement.

                  Section 4.08. Investor Charge-Offs. (a) If on any Distribution
Date the Required Amount for such  Distribution  Date exceeds the sum of (x) the
amount of Subordinated  Principal  Collections with respect to such Distribution
Date, (y) the amount of Excess Finance Charge  Collections  with respect to such
Distribution Date and (z) the Available Shared  Enhancement  Amount with respect
to such  Distribution  Date,  the CCA  Invested  Amount  shall be reduced by the
amount of such excess,  but not by more than the Class A Investor Default Amount
for such Distribution Date. In the event that such reduction would cause the CCA
Invested  Amount to be a  negative  number,  the CCA  Invested  Amount  shall be
reduced to zero, and the Class B Invested  Amount shall be reduced by the amount
by which the CCA Invested  Amount would have been reduced below zero, but not by
more than the excess,  if any, of the Class A Investor  Default  Amount for such
Distribution Date over the amount of such reduction, if any, of the CCA Invested
Amount. In the
<PAGE>
                                       45


event  that such  reduction  would  cause the  Class B  Invested  Amount to be a
negative  number,  the Class B Invested Amount shall be reduced to zero, and the
Class A  Invested  Amount  will be  reduced  by the  amount by which the Class B
Invested  Amount  would have been reduced  below zero,  but not by more than the
excess,  if any, of the Class A Investor  Default  Amount for such  Distribution
Date over the aggregate  amount of the  reductions,  if any, of the CCA Invested
Amount and the Class B Invested  Amount for such  Distribution  Date pursuant to
this  Section  4.08(a)  (a  "Class A  Investor  Charge-Off").  Class A  Investor
Charge-Offs  shall  thereafter  be  reimbursed  and the Class A Invested  Amount
increased  (but not by an amount in excess  of the  aggregate  Class A  Investor
Charge-Offs) on any Distribution Date by the sum of (i) Allocable  Miscellaneous
Payments  with respect to such  Distribution  Date and (ii) the amount of Excess
Finance Charge Collections  allocated and available for that purpose pursuant to
Section 4.09(b).

                  (b) If on any  Distribution  Date the Class B Investor Default
Amount for such  Distribution  Date  exceeds the sum of (x) the amount of Excess
Finance  Charge  Collections  with respect to such  Distribution  Date which are
allocated and available to pay the Class B Investor  Default Amount  pursuant to
Section 4.09(d) and (y) the portion, if any, of the Available Shared Enhancement
Amount  with  respect to such  Distribution  Date  (after  giving  effect to any
withdrawal  from the Cash  Collateral  Account or any Additional Cash Collateral
Account to fund the  Required  Draw  Amount  with  respect to such  Distribution
Date),  then the CCA  Invested  Amount  shall be  reduced  by the amount of such
excess.  In the event that such reduction would cause the CCA Invested Amount to
be a negative number,  the CCA Invested Amount shall be reduced to zero, and the
Class B Invested Amount shall be reduced by the amount by which the CCA Invested
Amount  would have been  reduced  below zero (a "Class B Investor  Charge-Off").
Class B Investor  Charge-Offs  shall  thereafter be  reimbursed  and the Class B
Invested Amount increased (but not by an amount in excess of the aggregate Class
B Investor  Charge-Offs)  on any  Distribution  Date by the sum of (i) Allocable
Miscellaneous  Payments with respect to such  Distribution Date (but only to the
extent such amount is not  required to  reimburse  Class A Investor  Charge-Offs
pursuant to paragraph  (a) above) and (ii) the amount of Excess  Finance  Charge
Collections  allocated  and  available  for that  purpose  pursuant  to  Section
4.09(f).
<PAGE>
                                       46


                  (c)  If  on  any  Distribution  Date  Subordinated   Principal
Collections  for  such  Distribution  Date are  allocated  pursuant  to  Section
4.10(a),  the CCA  Invested  Amount  shall  be  reduced  by the  amount  of such
Subordinated Principal Collections. In the event that such reduction would cause
the CCA Invested Amount to be a negative  number,  the CCA Invested Amount shall
be reduced  to zero,  and the Class B  Invested  Amount  shall be reduced by the
amount by which the CCA Invested Amount would have been reduced below zero.

                  (d) If on any  Distribution  Date the CCA  Default  Amount for
such Distribution  Date exceeds the amount of Excess Finance Charge  Collections
with respect to such  Distribution Date which are allocated and available to pay
the CCA Default Amount pursuant to Section 4.09(h), then the CCA Invested Amount
shall  be  reduced  by the  amount  of such  excess  (a "CCA  Charge-Off").  CCA
Charge-Offs shall thereafter be reimbursed and the CCA Invested Amount increased
(but not by an  amount  in  excess  of the  aggregate  CCA  Charge-Offs)  on any
Distribution  Date  by the  sum of (i)  Allocable  Miscellaneous  Payments  with
respect to such  Distribution  Date (but only to the extent  such  amount is not
required  to  reimburse  Class  A  Investor  Charge-Offs  or  Class  B  Investor
Charge-Offs  pursuant  to  paragraph  (a) or (b)  above)  and (ii) the amount of
Excess  Finance  Charge  Collections  allocated  and  available for that purpose
pursuant to Section 4.09(i).

                  Section 4.09. Excess Finance Charge Collections.  The Servicer
shall apply (if  Citibank  (South  Dakota) is the  Servicer  and the  Collection
Account is maintained  with Citibank  (South Dakota)) or shall cause the Trustee
to apply, on each  Distribution  Date,  Excess Finance Charge  Collections  with
respect to such  Distribution  Date, to make the following  distributions in the
following priority:

                           (a) an amount equal to the Required  Amount,  if any,
                  with respect to such  Distribution  Date shall be  distributed
                  first to fund any deficiency pursuant to Section 4.06(a)(i) or
                  (c)(i) (but not including  any amount  relating to any Class A
                  Funding  Account  Shortfall)  and  second  to pay the  Class A
                  Investor Default Amount,  if any, for such  Distribution  Date
                  pursuant to Section  4.06(a)(ii)  or (c)(ii),  as the case may
                  be;  provided,  however,  that at such time as Citibank (South
                  Dakota)  or an  Affiliate  of  Citibank
<PAGE>
                                       47


                  (South Dakota) is no longer the Servicer,  such Excess Finance
                  Charge  Collections  shall be  distributed  second to fund any
                  deficiency  in the  Class A  Monthly  Servicing  Fee for  such
                  Distribution  Date  and  third  to pay the  Class  A  Investor
                  Default Amount, if any, for such Distribution Date;

                           (b) an amount equal to the aggregate  amount of Class
                  A  Investor   Charge-Offs   which  have  not  been  previously
                  reimbursed  (after  giving  effect to the  allocation  on such
                  Distribution  Date of any amount for that purpose  pursuant to
                  Section  4.08(a)(i)) shall be treated as a portion of Investor
                  Principal Collections with respect to such Distribution Date;

                           (c) an amount  equal to (i) Class B Monthly  Interest
                  due but not  deposited  into  the  Class  B  Interest  Funding
                  Account  on such  Distribution  Date,  plus the  amount of any
                  Class B Monthly Interest previously due but not deposited into
                  the Class B Interest  Funding Account on a prior  Distribution
                  Date,  (ii) the  Cumulative  Excess  Interest  Amount for such
                  Distribution  Date  and  (iii)  the  amount  of  any  Class  B
                  Additional  Interest  due but not  deposited  into the Class B
                  Interest  Funding  Account on such  Distribution  Date and any
                  Class B Additional  Interest  previously due but not deposited
                  into  the  Class  B  Interest   Funding  Account  on  a  prior
                  Distribution  Date,  shall  be  deposited  into  the  Class  B
                  Interest Funding Account;

                           (d) an amount  equal to the Class B Investor  Default
                  Amount  for  such  Distribution  Date  shall be  treated  as a
                  portion of Investor Principal Collections with respect to such
                  Distribution Date;

                           (e) with respect to each  Distribution Date following
                  the Distribution Date on which the Class A Invested Amount and
                  the Class B  Invested  Amount  are paid in full,  provided  an
                  Economic Special Payment Date has occurred, an amount equal to
                  the CCA Monthly Servicing Fee for such Distribution Date shall
                  be  distributed  to the Servicer  (unless such amount has been
                  netted against deposits to the Collection Account);

                           (f) an amount equal to the aggregate  amount by which
                  the Class B  Invested  Amount  has been  reduced
<PAGE>
                                       48


                  pursuant  to clauses  (c),  (d) and (e) of the  definition  of
                  "Class B Invested  Amount" (but not in excess of the aggregate
                  amount  of such  reductions  which  have not  been  previously
                  reimbursed)   shall  be  treated  as  a  portion  of  Investor
                  Principal Collections with respect to such Distribution Date;

                           (g)  an  amount  equal  to  (i)  the  "Monthly   Cash
                  Collateral  Fee" (as defined in the Loan  Agreement)  and (ii)
                  the "Monthly  Additional  Cash  Collateral Fee" (as defined in
                  each  Additional Loan  Agreement) for such  Distribution  Date
                  shall  be  distributed,  pro  rata,  to  the  Cash  Collateral
                  Depositor and each Additional Cash  Collateral  Depositor,  in
                  accordance  with the provisions of the Loan Agreement and each
                  Additional Loan Agreement, respectively;

                           (h) an amount  equal to the CCA  Default  Amount  for
                  such  Distribution  Date  shall be  treated  as a  portion  of
                  Investor   Principal   Collections   with   respect   to  such
                  Distribution Date;

                           (i) an amount equal to the aggregate  amount by which
                  the CCA Invested  Amount has been reduced  pursuant to clauses
                  (c), (d) and (e) of the  definition of "CCA  Invested  Amount"
                  (but not in excess of the aggregate  amount of such reductions
                  which have not been previously reimbursed) shall be treated as
                  a portion of Investor  Principal  Collections  with respect to
                  such Distribution Date;

                           (j) with respect to each  Distribution  Date prior to
                  the occurrence of an Economic  Amortization  Event,  an amount
                  equal to the lesser of (i) the balance of such Excess  Finance
                  Charge Collections and (ii) the sum of (A) the excess, if any,
                  of the Initial Cash Collateral Amount over the amount of funds
                  on  deposit in the Cash  Collateral  Account  (without  giving
                  effect to any deposit made on such date hereunder) and (B) the
                  excess,  if any, of the  Initial  Additional  Cash  Collateral
                  Amount for each Additional  Cash  Collateral  Account over the
                  amount of funds on  deposit  in the  related  Additional  Cash
                  Collateral  Account (without giving effect to any deposit made
                  on such date hereunder) shall be deposited, pro rata, into the
                  Cash  Collateral  Account and each  Additional Cash Collateral
                  Account, for application in accordance with the Loan
<PAGE>
                                       49


                  Agreement and each Additional  Loan  Agreement,  respectively;
                  and

                           (k) the balance,  if any, shall be  distributed,  pro
                  rata, to the Cash  Collateral  Depositor  and each  Additional
                  Cash  Collateral  Depositor for application in accordance with
                  the  Loan  Agreement  and  each   Additional  Loan  Agreement,
                  respectively.

                  Section 4.10. Subordinated Principal Collections. The Servicer
shall apply (if  Citibank  (South  Dakota) is the  Servicer  and the  Collection
Account is maintained  with Citibank  (South Dakota)) or shall cause the Trustee
to apply, on each Distribution  Date,  Subordinated  Principal  Collections with
respect to such  Distribution  Date to make the following  distributions  in the
following priority:

                           (a) an amount equal to the excess, if any, of (i) the
                  Required  Amount,  if any,  with respect to such  Distribution
                  Date  over (ii) the sum of (x) the  amount  of Excess  Finance
                  Charge  Collections with respect to such Distribution Date and
                  (y) the Available  Shared  Enhancement  Amount with respect to
                  such  Distribution  Date, shall be distributed by the Servicer
                  or the  Trustee  to fund any  deficiency  pursuant  to Section
                  4.06(a)(i) and (a)(ii) or Section  4.06(c)(i) and (c)(ii),  as
                  the case may be (but not including any amount  relating to any
                  Class A Funding  Account  Shortfall),  and, if Citibank (South
                  Dakota)  or an  Affiliate  of  Citibank  (South  Dakota) is no
                  longer the Servicer,  Section 4.06(a)(iii) or (c)(iii), as the
                  case may be; provided, however, that in the event the Required
                  Amount  for  such  Distribution  Date  exceeds  the sum of the
                  Available Shared Enhancement Amount for such Distribution Date
                  and the  amount  of  Excess  Finance  Charge  Collections  and
                  Subordinated   Principal  Collections  with  respect  to  such
                  Distribution   Date,  the  amount   withdrawn  from  the  Cash
                  Collateral Account and each Additional Cash Collateral Account
                  with respect to such Required  Amount and such Excess  Finance
                  Charge  Collections  and  Subordinated  Principal  Collections
                  shall be applied first to pay amounts due with respect to such
                  Distribution Date pursuant to Section 4.06(a)(i) or (c)(i), as
                  the case may be (but not including any amount  relating to any
                  Class A  Funding  Account  Shortfall),  and  second to pay the
                  Class A Investor Default Amount, if any, for such Distribution
<PAGE>
                                       50


                  Date pursuant to Section  4.06(a)(ii) or (c)(ii),  as the case
                  may be; provided  further that at such time as Citibank (South
                  Dakota)  or an  Affiliate  of  Citibank  (South  Dakota) is no
                  longer  the  Servicer,  the  amount  withdrawn  from  the Cash
                  Collateral Account and each Additional Cash Collateral Account
                  with respect to such Required  Amount and such Excess  Finance
                  Charge  Collections  and  Subordinated  Principal  Collections
                  shall be applied  second to fund any deficiency in the Class A
                  Monthly  Servicing Fee for such Distribution Date and third to
                  pay the Class A  Investor  Default  Amount,  if any,  for such
                  Distribution Date; and

                           (b)  the  balance,  if any,  shall  be  treated  as a
                  portion of Investor Principal Collections with respect to such
                  Distribution Date.

                  Section  4.11.  Credit  Enhancement.  (a) The  Servicer  shall
establish and maintain,  in the name of the Trustee, on behalf of the Trust, for
the  benefit of the Series  1997-3  Certificateholders  and the Cash  Collateral
Depositor, as their interests appear herein, a "Cash Collateral Account",  which
shall be one or more  Eligible  Deposit  Accounts,  each  bearing a  designation
clearly  indicating that the funds deposited therein are held for the benefit of
the Series 1997-3  Certificateholders  and the Cash  Collateral  Depositor.  The
Trustee shall possess all right, title and interest in all funds on deposit from
time to time in the Cash  Collateral  Account and in all proceeds  thereof.  The
Cash  Collateral  Account  shall be under the sole  dominion  and control of the
Trustee for the benefit of the 1997-3 Certificateholders and the Cash Collateral
Depositor.  The interest of the Cash Collateral Depositor in the Cash Collateral
Account   shall  be   subordinated   to  the  interests  of  the  Series  1997-3
Certificateholders as provided herein and in the Loan Agreement.  If at any time
any of the  accounts  comprising  the Cash  Collateral  Account  ceases to be an
Eligible  Deposit  Account,  the Trustee (or the  Servicer on its behalf)  shall
within 10 Business Days (or such longer period,  not to exceed 30 calendar days,
as to which each Rating Agency may consent)  establish a new account meeting the
conditions  specified above as an Eligible Deposit  Account,  and shall transfer
any cash  and/or  any  investments  to such new  account.  The  Trustee,  at the
direction of the Servicer,  shall (i) on the Closing  Date,  deposit in the Cash
Collateral  Account  the  proceeds of the advance to be made on such date by the
Cash Collateral  Depositor under the Loan
<PAGE>
                                       51


Agreement,  (ii) make withdrawals from the Cash Collateral  Account from time to
time in an amount up to the Available Cash  Collateral  Amount at such time, for
the  purposes and in the manner set forth in  paragraphs  (c) through (i) below,
and  (iii)  on each  Distribution  Date  prior  to the  termination  of the Cash
Collateral Account make a deposit into the Cash Collateral Account in the amount
specified in, and otherwise in accordance with, Section 4.09(j). All withdrawals
from the Cash Collateral Account shall be made in the priority and in the manner
set  forth  below.  The Cash  Collateral  Depositor  shall  not be  entitled  to
reimbursement from the Trust Assets for any withdrawals from the Cash Collateral
Account except as specifically provided in this Series Supplement.

                  (a.1) On each  Additional  Issuance  Date,  the Servicer shall
establish and maintain,  in the name of the Trustee, on behalf of the Trust, for
the benefit of the Series 1997-3  Certificateholders  and the related Additional
Cash Collateral Depositor,  as their interests appear in this Series Supplement,
an  "Additional  Cash  Collateral  Account"  which shall be one or more Eligible
Deposit Accounts,  each bearing a designation  clearly indicating that the funds
deposited   therein   are   held  for  the   benefit   of  the   Series   1997-3
Certificateholders  and the related  Additional Cash Collateral  Depositor.  The
Trustee shall possess all right, title and interest in all funds on deposit from
time to time in the  Additional  Cash  Collateral  Account  and in all  proceeds
thereof. The Additional Cash Collateral Account shall be under the sole dominion
and   control  of  the   Trustee   for  the   benefit   of  the  Series   1997-3
Certificateholders  and the related  Additional Cash Collateral  Depositor.  The
interest of the Additional  Cash  Collateral  Depositor in the  Additional  Cash
Collateral  Account shall be  subordinated to the interests of the Series 1997-3
Certificateholders  as  provided  herein  and in  the  related  Additional  Loan
Agreement.  If at any time any of the accounts  comprising the  Additional  Cash
Collateral Account ceases to be an Eligible Deposit Account, the Trustee (or the
Servicer on its behalf)  shall within 10 Business  Days (or such longer  period,
not to exceed 30  calendar  days,  as to which each Rating  Agency may  consent)
establish a new account  meeting the conditions  specified  above as an Eligible
Deposit Account,  and shall transfer any cash and/or any investments to such new
account.  The  Trustee,  at the  direction  of the  Servicer,  shall  (i) on the
Additional  Issuance Date, deposit in the Additional Cash Collateral Account the
proceeds  of
<PAGE>
                                       52


the advance to be made on such date by the Additional Cash Collateral  Depositor
under the Additional Loan Agreement,  (ii) make  withdrawals from the Additional
Cash  Collateral  Account  from time to time in an  amount  up to the  Available
Additional  Cash  Collateral  Amount at such time,  for the  purposes and in the
manner  set  forth in  paragraphs  (c)  through  (i)  below,  and  (iii) on each
Distribution  Date prior to the  termination of the Additional  Cash  Collateral
Account make a deposit into the Additional Cash Collateral Account in the amount
specified in, and otherwise in accordance with, Section 4.09(j). All withdrawals
from the Additional Cash Collateral Account shall be made in the priority and in
the manner set forth below.  The Additional Cash Collateral  Depositor shall not
be entitled to reimbursement  from the Trust Assets for any withdrawals from the
Additional  Cash  Collateral  Account  except as  specifically  provided in this
Series Supplement.

                  (b) Funds on deposit in the Cash  Collateral  Account shall be
invested at the direction of the Servicer (or the Cash Collateral Depositor,  as
provided  in the Loan  Agreement)  by the  Trustee  in Cash  Collateral  Account
Investments.  Funds on deposit in the Cash  Collateral  Account on any  Transfer
Date, after giving effect to any withdrawals from the Cash Collateral Account on
such Transfer Date,  shall be invested in such  investments  that will mature so
that such funds will be available  for  withdrawal  on or prior to the following
Transfer  Date. The proceeds of any such  investments  shall be invested in such
investments that will mature so that such funds will be available for withdrawal
on or  prior  to the  Transfer  Date  immediately  following  the  date  of such
investment.  The Trustee  shall  maintain  for the benefit of the Series  1997-3
Certificateholders   and  the  Cash  Collateral   Depositor  possession  of  the
negotiable  instruments or securities,  if any,  evidencing the Cash  Collateral
Account  Investments.  On each Transfer  Date, all interest and earnings (net of
losses and  investment  expenses)  accrued since the preceding  Transfer Date on
funds  on  deposit  in the  Cash  Collateral  Account  shall be paid to the Cash
Collateral Depositor for application in accordance with the Loan Agreement.  For
purposes of determining  the  availability  of funds or the balances in the Cash
Collateral Account for any reason under this Series  Supplement,  all investment
earnings on such funds shall be deemed not to be available or on deposit.
<PAGE>
                                       53


                  (b.1)  Funds on deposit  in each  Additional  Cash  Collateral
Account  shall be  invested at the  direction  of the  Servicer  (or the related
Additional Cash Collateral Depositor, as provided in the related Additional Loan
Agreement)  by the  Trustee in Cash  Collateral  Account  Investments.  Funds on
deposit in each Additional Cash Collateral  Account on any Transfer Date,  after
giving effect to any withdrawals from such Additional Cash Collateral Account on
such Transfer Date,  shall be invested in such  investments  that will mature so
that such funds will be available  for  withdrawal  on or prior to the following
Transfer  Date. The proceeds of any such  investments  shall be invested in such
investments that will mature so that such funds will be available for withdrawal
on or  prior  to the  Transfer  Date  immediately  following  the  date  of such
investment.  The Trustee  shall  maintain  for the benefit of the Series  1997-3
Certificateholders  and each Additional Cash Collateral  Depositor possession of
the negotiable instruments or securities, if any, evidencing the Cash Collateral
Account  Investments in the related Additional Cash Collateral  Account. On each
Transfer Date, all interest and earnings (net of losses and investment expenses)
accrued since the preceding Transfer Date on funds on deposit in each Additional
Cash Collateral  Account shall be paid to the related Additional Cash Collateral
Depositor  for  application  in  accordance  with the  related  Additional  Loan
Agreement. For purposes of determining the availability of funds or the balances
in each  Additional  Cash  Collateral  Account for any reason  under this Series
Supplement,  all  investment  earnings  on such funds  shall be deemed not to be
available or on deposit.

                  (c) On each  Determination  Date, the Servicer shall calculate
the amount (the "Required Draw Amount")  (determined  after giving effect to any
distribution  to be made pursuant to Section  4.06(a)(i) or (c)(i),  as the case
may be, and Section  4.06(a)(ii) or (c)(ii),  as the case may be, on the related
Distribution  Date) equal to the excess,  if any, of (i) the Required Amount, if
any,  with  respect  to such  Distribution  Date over (ii) the  amount of Excess
Finance  Charge  Collections  to be allocated and available  pursuant to Section
4.09(a) to fund such Required Amount on such Distribution Date.

                  (d) On each  Determination  Date, the Servicer shall calculate
the amount (the "Interest Draw Amount")  (determined  after giving effect to any
distribution  to be
<PAGE>
                                       54


made pursuant to Section  4.06(b)(i) or (d)(i),  as the case may be, and Section
4.09(c) on the related  Distribution  Date) of (i) any Class B Monthly  Interest
due but not to be deposited  into the Class B Interest  Funding  Account on such
Distribution Date pursuant to Section  4.06(b)(i) or (d)(i), as the case may be,
or Section  4.09(c),  (ii) any Class B Monthly  Interest  previously due but not
deposited into the Class B Interest Funding Account on a prior Distribution Date
pursuant to Section 4.06(b)(i) or (d)(i), as the case may be, or Section 4.09(c)
or this paragraph  (d), (iii) any Class B Additional  Interest due but not to be
deposited into the Class B Interest  Funding Account on such  Distribution  Date
and any Class B Additional  Interest  previously  due but not deposited into the
Class B  Interest  Funding  Account on a prior  Distribution  Date  pursuant  to
Section  4.06(b)(i)  or (d)(i),  as the case may be, or Section  4.09(c) or this
paragraph (d) and (iv) any Cumulative  Excess  Interest Amount due but not to be
deposited into the Class B Interest  Funding Account on such  Distribution  Date
pursuant to Section 4.09(c).

                  (e) On each  Determination  Date, the Servicer shall calculate
the amount (the "Default Draw Amount")  equal to the excess,  if any, of (i) the
Class B Investor Default Amount for the related  Distribution Date over (ii) the
amount of Excess  Finance  Charge  Collections  to be  allocated  and  available
pursuant to Section 4.09(d) to fund such Class B Investor Default Amount on such
Distribution Date.

                  (f)  On  each   Determination   Date   (commencing   with  the
Determination  Date  preceding  the Class B Principal  Commencement  Date),  the
Servicer shall calculate the amount (the  "Reimbursement  Draw Amount") equal to
the excess,  if any, of (i) the Class B Initial Invested Amount minus the sum of
the aggregate  amount of principal  payments  previously  distributed to Class B
Certificateholders  over (ii) the Class B Invested Amount on the last day of the
related Due Period  (determined  after giving effect to any change to be made in
the Class B Invested  Amount  pursuant to paragraph  (c), (d), (e) or (f) of the
definition of "Class B Invested Amount" on the following Distribution Date).

                  (g)  Notwithstanding   Section  4.11(f),  if  either  (i)  the
Certificateholders'  Interest in the  Receivables  is  reassigned to the Sellers
pursuant to Section 2.06 of the Agreement,  (ii) Receivables are sold,  disposed
of or otherwise  liquidated  pursuant to Section 9.02 or
<PAGE>
                                       55


Section 12.02(c) of the Agreement or (iii) the  Certificateholders'  Interest in
the  Receivables  is purchased by the Sellers  pursuant to Section  10.01 of the
Agreement or the Series 1997-3 Certificateholders'  Interest is purchased by the
Sellers pursuant to Section 7.01 of this Series  Supplement,  the Servicer shall
not  calculate  the  Reimbursement  Draw  Amount  with  respect to the  relevant
Distribution  Date,  but shall  calculate the amount (the "Special Draw Amount")
equal to the aggregate  amount of all reductions of the Class B Invested  Amount
occurring  under clauses (c), (d) or (e) of the  definition of "Class B Invested
Amount" which have not been  reimbursed  prior to such  Distribution  Date under
clause (f) thereof.

                  (h)   Notwithstanding   Section   4.11(f)   and  (g),  on  the
Determination  Date  preceding the Economic  Special  Payment Date, the Servicer
shall not  calculate  the  Reimbursement  Draw Amount or the Special Draw Amount
with respect to such Special  Payment Date,  but shall  calculate (i) the amount
(the "Class A Principal  Draw  Amount")  (determined  after giving effect to any
distribution  to be made pursuant to Section  4.06(f)(i) and 4.07(a)(ii) on such
Special Payment Date) equal to the outstanding  principal  amount of the Class A
Certificates  and  (ii)  the  amount  (the  "Class  B  Principal  Draw  Amount")
(determined  after  giving  effect to any  distribution  to be made  pursuant to
Section  4.06(f)(iii) and 4.07(b)(ii) on such Special Payment Date) equal to the
outstanding principal amount of the Class B Certificates.

                  (i) In the event that for any  Distribution  Date,  the sum of
any  Required  Draw  Amount,   Interest   Draw  Amount,   Default  Draw  Amount,
Reimbursement  Draw Amount,  Special Draw Amount,  Class A Principal Draw Amount
and Class B Principal Draw Amount (such sum being referred to as the "Total Draw
Amount"),  is greater than zero,  the Servicer  shall give written notice to the
Trustee,  the Cash  Collateral  Depositor and each  Additional  Cash  Collateral
Depositor,  in substantially the form of Exhibits B-1 and B-2, respectively,  of
such  positive  Total Draw  Amount on the  related  Determination  Date.  On the
related Transfer Date, withdrawals will be made from the Cash Collateral Account
and each Additional Cash Collateral Account as follows:

                           (A) the portion of the Total Draw Amount allocable to
                  the Required Draw Amount,  if any, up to the Available  Shared
                  Enhancement  Amount,  shall be
<PAGE>
                                       56


                  withdrawn, pro rata, from the Cash Collateral Account and each
                  Additional  Cash  Collateral  Account,  in each  case,  on the
                  related  Transfer  Date  and  distributed  first  to fund  any
                  deficiency  pursuant to Section  4.06(a)(i) or (c)(i) (but not
                  including any amount  relating to any Class A Funding  Account
                  Shortfall)  and  second  to pay the Class A  Investor  Default
                  Amount, if any, for such Distribution Date pursuant to Section
                  4.06(a)(ii) or (c)(ii), as the case may be; provided, however,
                  that at such time as Citibank  (South  Dakota) or an Affiliate
                  of  Citibank  (South  Dakota) is no longer the  Servicer,  the
                  amount of such withdrawal from the Cash Collateral Account and
                  each Additional  Cash  Collateral  Account shall be applied in
                  accordance  with Section 4.10(a) second to fund any deficiency
                  in the Class A  Monthly  Servicing  Fee for such  Distribution
                  Date and third to pay the Class A Investor Default Amount,  if
                  any, for such Distribution Date;

                           (B) the portion of the Total Draw Amount allocable to
                  the Interest Draw Amount,  if any, up to the Available  Shared
                  Enhancement  Amount  (determined  after  giving  effect to any
                  withdrawal  pursuant to clause (A)),  shall be withdrawn,  pro
                  rata,  from the Cash  Collateral  Account and each  Additional
                  Cash Collateral Account, in each case, on the related Transfer
                  Date and immediately deposited by the Trustee into the Class B
                  Interest Funding Account;

                           (C) the portion of the Total Draw Amount allocable to
                  the Default Draw Amount,  if any, up to the  Available  Shared
                  Enhancement  Amount  (determined  after  giving  effect to any
                  withdrawal   pursuant  to  clauses  (A)  and  (B)),  shall  be
                  withdrawn, pro rata, from the Cash Collateral Account and each
                  Additional  Cash  Collateral  Account,  in each  case,  on the
                  related  Transfer  Date and used to pay the  Class B  Investor
                  Default Amount for such  Distribution Date pursuant to Section
                  4.09(d);

                           (D) the portion of the Total Draw Amount allocable to
                  the Class A Principal Draw Amount, if any, up to the Available
                  Shared  Enhancement  Amount (determined after giving effect to
                  any withdrawal pursuant to clauses (A), (B) and (C)), shall be
                  withdrawn, pro rata, from the Cash Collateral Account and each
                  Additional  Cash  Collateral  Account,  in each  case,  on
<PAGE>
                                       57


                  the related  Transfer  Date and  immediately  deposited by the
                  Trustee into the Class A Principal Funding Account; and

                           (E) the  remainder of the Total Draw Amount,  if any,
                  up to  the  Available  Enhancement  Amount  (determined  after
                  giving  effect  to any  withdrawal  pursuant  to  clauses  (A)
                  through  (D)),  shall be  withdrawn,  pro rata,  from the Cash
                  Collateral   Account  and  each   Additional  Cash  Collateral
                  Account,  in each  case,  on the  related  Transfer  Date  and
                  immediately  deposited  by the  Trustee  into  the  Collection
                  Account for distribution to the Class B Certificateholders  on
                  such Distribution Date.

Notwithstanding  anything to the  contrary in this Series  Supplement  or in the
Agreement,  no withdrawal  may be made from the Cash  Collateral  Account or any
Additional  Cash  Collateral  Account  to  fund  any  Class  A  Funding  Account
Shortfall.  For the avoidance of doubt,  after any Additional  Issuance Date, no
withdrawal shall be made from the Cash Collateral Account or any Additional Cash
Collateral  Account on any basis other than pro rata and no withdrawal  shall be
made from the Cash Collateral  Account or any Additional Cash Collateral Account
to fund any amount  which is  required to be  withdrawn  pursuant to this Series
Supplement from any other cash collateral account.

                  (j) Upon the earliest to occur of (i) the  termination  of the
Trust pursuant to Article XII of the Agreement, (ii) the Termination Date, (iii)
the day on which the Class A Invested Amount and the Class B Invested Amount are
paid  in   full   to  the   Class   A   Certificateholders   and  the   Class  B
Certificateholders and (iv) all withdrawals from the Cash Collateral Account and
each Additional Cash Collateral Account pursuant to Section 4.11(i) with respect
to the Economic  Special  Payment Date having been made, the Trustee,  acting in
accordance with the instructions of the Servicer, after the prior payment of all
amounts   owing   to  the   Class  A   Certificateholders   and   the   Class  B
Certificateholders  which are payable from the Cash Collateral  Account and each
Additional Cash Collateral  Account as provided herein,  shall withdraw from the
Cash  Collateral  Account  and each  Additional  Cash  Collateral  Account,  for
application  in accordance  with the Loan  Agreement and the related  Additional
Loan  Agreements,  respectively  all  amounts,  if any,  on  deposit in the Cash
Collateral  Account and each  Additional  Cash  Collateral  Account and the Cash
Collateral
<PAGE>
                                       58


Account and each  Additional  Cash  Collateral  Account  shall be deemed to have
terminated for purposes of this Series Supplement.

                  Section 4.12. Reallocated Investor Finance Charge Collections.
(a) That  portion  of Group One  Investor  Finance  Charge  Collections  for any
Distribution  Date equal to the amount of  Reallocated  Investor  Finance Charge
Collections  for such  Distribution  Date will be allocated to Series 1997-3 and
will be distributed as set forth in this Series Supplement.

                  (b)  Reallocated  Investor  Finance Charge  Collections,  with
respect  to any  Distribution  Date,  shall  equal the sum of (i) the  aggregate
amount of Series 1997-3 Monthly Interest,  Series 1997-3 Default Amount,  Series
1997-3 Monthly Fees and Series 1997-3  Additional  Amounts for such Distribution
Date and  (ii)  that  portion  of  excess  Group  One  Investor  Finance  Charge
Collections to be included in Reallocated  Investor  Finance Charge  Collections
pursuant to Section 4.12(c); provided,  however, that if the amount of Group One
Investor Finance Charge  Collections for such Distribution Date is less than the
sum of (w) Group One Investor Monthly  Interest,  (x) Group One Investor Default
Amount,  (y)  Group  One  Investor  Monthly  Fees  and (z)  Group  One  Investor
Additional Amounts,  then Reallocated  Investor Finance Charge Collections shall
equal the sum of the following amounts for such Distribution Date:

                           (A) the  product  of (I) Group One  Investor  Finance
                  Charge  Collections  (up to the  amount of Group One  Investor
                  Monthly Interest) and (II) a fraction,  the numerator of which
                  is Series 1997-3 Monthly Interest and the denominator of which
                  is Group One Investor Monthly Interest;

                           (B) the  product  of (I) Group One  Investor  Finance
                  Charge  Collections  less the  amount  of Group  One  Investor
                  Monthly Interest (up to the Group One Investor Default Amount)
                  and (II) a  fraction,  the  numerator  of which is the  Series
                  1997-3  Default  Amount  and the  denominator  of which is the
                  Group One Investor Default Amount;

                           (C) the  product  of (I) Group One  Investor  Finance
                  Charge  Collections  less the  amount  of Group  One  Investor
                  Monthly Interest and the Group One Investor
<PAGE>
                                       59


                  Default  Amount (up to Group One  Investor  Monthly  Fees) and
                  (II) a  fraction,  the  numerator  of which is  Series  1997-3
                  Monthly  Fees  and the  denominator  of  which  is  Group  One
                  Investor Monthly Fees; and

                           (D) the  product  of (I) Group One  Investor  Finance
                  Charge  Collections  less the sum of (i)  Group  One  Investor
                  Monthly  Interest,  (ii) the Group One Investor Default Amount
                  and (iii) Group One Investor Monthly Fees and (II) a fraction,
                  the numerator of which is Series 1997-3 Additional Amounts and
                  the  denominator  of which is Group  One  Investor  Additional
                  Amounts.

                  (c) If  the  amount  of  Group  One  Investor  Finance  Charge
Collections for such Distribution Date exceeds the sum of (i) Group One Investor
Monthly  Interest,  (ii) Group One  Investor  Default  Amount,  (iii)  Group One
Investor  Monthly  Fees and (iv) Group One  Investor  Additional  Amounts,  then
Reallocated Investor Finance Charge Collections for such Distribution Date shall
include an amount  equal to the product of (x) the amount of such excess and (y)
a fraction,  the numerator of which is the Invested Amount as of the last day of
the second  preceding Due Period and the denominator of which is the sum of such
Invested Amount and the aggregate invested amounts for all other Series included
in Group One as of such last day.

                  Section 4.13. Excess Principal  Collections.  (a) That portion
of Excess Principal Collections for any Distribution Date equal to the amount of
Series 1997-3 Excess Principal  Collections for such  Distribution  Date will be
allocated to Series 1997-3 and will be  distributed  as set forth in this Series
Supplement.

                  (b)  Series  1997-3  Excess  Principal  Collections,  for  any
Distribution  Date (i) with  respect  to the  Accumulation  Period  or the Early
Amortization  Period,  shall mean an amount equal to the Series 1997-3 Principal
Shortfall  for such  Distribution  Date and (ii) with  respect to the  Principal
Payment Period shall mean the sum of the Series 1997-3  Principal  Shortfall and
the Series 1997-3 Subordinated Excess Principal Allocation for such Distribution
Date;  provided,  however,  that if the  aggregate  amount of  Excess  Principal
Collections for all Series for such Distribution Date is less than the aggregate
amount of Principal  Shortfalls for all Series for such Distribution  Date, then
Series 1997-3 Excess  Principal  Collections  for
<PAGE>
                                       60


such  Distribution  Date  shall  equal  the  product  of  (x)  Excess  Principal
Collections for all Series for such  Distribution  Date and (y) a fraction,  the
numerator  of  which  is  the  Series  1997-3   Principal   Shortfall  for  such
Distribution  Date  and the  denominator  of which is the  aggregate  amount  of
Principal  Shortfalls  for all Series  for such  Distribution  Date.  The Series
1997-3 Principal  Shortfall for any Distribution  Date shall equal the excess of
(i) (x) for any Distribution Date with respect to the Accumulation  Period,  (A)
the Controlled Distribution Amount and (B) if such Distribution Date is also the
Class B Expected  Final Payment Date, the Class B Invested  Amount,  (y) for any
Distribution Date with respect to the Early Amortization  Period, the sum of the
Invested Amount and the CCA Invested Amount, if any, or (z) for any Distribution
Date with respect to the  Principal  Payment  Period,  the amount,  if any, that
would have been the Controlled  Distribution  Amount for such  Distribution Date
had the  related  Principal  Payment  Event not  occurred,  over (ii)  Available
Investor Principal Collections for such Distribution Date (excluding any portion
thereof attributable to Series 1997-3 Excess Principal Collections).  The Series
1997-3 Subordinated Excess Principal  Allocation for any Distribution Date shall
equal  the  lesser  of (i)  the  Series  1997-3  Subordinated  Excess  Principal
Shortfall for such  Distribution  Date and (ii) the product of (x) the excess of
the aggregate amount of Excess Principal  Collections for such Distribution Date
over the aggregate of the Principal  Shortfalls for such  Distribution  Date and
(y) a fraction,  the numerator of which is the Series 1997-3 Subordinated Excess
Principal  Shortfall for such  Distribution Date and the denominator of which is
the aggregate of the Subordinated Excess Principal Shortfalls (as defined in the
related Series Supplement) of all Subordinated  Excess Principal Series for such
Distribution Date. The Series 1997-3 Subordinated Excess Principal Shortfall for
any Distribution  Date with respect to the Principal  Payment Period shall equal
the  excess  of the  Invested  Amount  over  the sum of (i)  Available  Investor
Principal  Collections for such Distribution Date (excluding any portion thereof
attributable to Series 1997-3 Excess Principal  Collections) and (ii) the Series
1997-3 Principal Shortfall for such Distribution Date.
<PAGE>
                                       61


                                    ARTICLE V

                          Distributions and Reports to
                        Series 1997-3 Certificateholders

                  Section 5.01.  Distributions.  (a) On each Payment  Date,  the
Paying Agent shall distribute to each Class A Certificateholder of record on the
related  Record Date (other than as provided in Section 12.02 of the  Agreement)
such  Investor  Certificateholder's  pro rata share of the amounts on deposit in
the Class A Interest Funding Account.

                  (b) On each  Special  Payment Date and on the Class A Expected
Final  Payment  Date,  the  Paying  Agent  shall  distribute  to  each  Class  A
Certificateholder  of record on the related  Record Date (other than as provided
in Section 12.02 of the Agreement)  such Investor  Certificateholder's  pro rata
share of the amounts on deposit in the Class A Principal  Funding  Account  that
are payable to the Class A Certificateholders pursuant to Section 4.07(a)(ii).

                  (c) On each Payment Date, the Paying Agent shall distribute to
each Class B Certificateholder  of record on the related Record Date (other than
as provided in Section 12.02 of the Agreement) such Investor Certificateholder's
pro rata  share of the  amounts  on  deposit  in the  Class B  Interest  Funding
Account.

                  (d) On each  Special  Payment Date and on the Class B Expected
Final  Payment  Date,  the  Paying  Agent  shall  distribute  to  each  Class  B
Certificateholder  of record on the related  Record Date (other than as provided
in Section 12.02 of the Agreement)  such Investor  Certificateholder's  pro rata
share of the amounts on deposit in the  Collection  Account  that are payable to
Class B Certificateholders pursuant to Section 4.07(b)(ii).

                  (e) Except as provided in Section 12.02 of the Agreement  with
respect   to   a   final   distribution,    distributions   to   Series   1997-3
Certificateholders hereunder shall be made by check mailed to each Series 1997-3
Certificateholder   at  such   Certificateholder's   address  appearing  in  the
Certificate  Register  without  presentation  or surrender of any Series  1997-3
Certificate or the making of any notation thereon; provided,  however, that with
respect  to Series  1997-3  Certificates  registered  in the name of a
<PAGE>
                                       62


Clearing  Agency,  such  distributions  shall be made to such Clearing Agency in
immediately available funds.

                  Section  5.02.   Reports  and   Statements  to  Series  1997-3
Certificateholders.  (a) On each Distribution  Date, the Paying Agent, on behalf
of the  Trustee,  shall  forward  to  each  Series  1997-3  Certificateholder  a
statement  substantially  in the form of Exhibit C prepared by the the Servicer.
If and so long as the Series 1997-3  Certificates  are listed on the  Luxembourg
Stock  Exchange  and the rules of such  exchange  shall so  require,  within two
Business Days  following  each Payment Date, the Servicer shall publish or cause
to be published in an Authorized  Newspaper of general circulation in Luxembourg
a notice to the effect that the information set forth in the statement forwarded
by the Paying  Agent to Series  1997-3  Certificateholders  with respect to such
Payment Date will be available for review at the  Luxembourg  Stock Exchange and
at the main office of the listing agent in  Luxembourg,  Bank  Internationale  A
Luxembourg, S.A.

                  (b) Not later  than the fourth  Business  Day  preceding  each
Distribution Date, the Servicer shall deliver to the Trustee,  the Paying Agent,
each Rating Agency and the Cash  Collateral  Depositor and each  Additional Cash
Collateral  Depositor  (i) a  statement  substantially  in the form of Exhibit C
prepared  by the  Paying  Agent and the  Servicer  and (ii) a  certificate  of a
Servicing Officer substantially in the form of Exhibit D.

                  (c) A copy of each statement or certificate  provided pursuant
to paragraph (a) or (b) may be obtained by any Series  1997-3  Certificateholder
or Certificate Owner by a request in writing to the Servicer.

                  (d) On or before January 31 of each calendar  year,  beginning
with  calendar  year 1996,  the Paying  Agent,  on behalf of the Trustee,  shall
furnish  or cause to be  furnished  to each  Person  who at any time  during the
preceding  calendar  year was a Series  1997-3  Certificateholder,  a  statement
prepared by the  Servicer  containing  the  information  which is required to be
contained in the statement to Series 1997-3 Certificateholders,  as set forth in
paragraph (a) above, aggregated for such calendar year or the applicable portion
thereof during which such Person was a Series 1997-3 Certificateholder, together
with  other  information  as  is  required  to  be  provided  by  an  issuer  of
<PAGE>
                                       63

indebtedness   under  the  Internal   Revenue  Code  and  such  other  customary
information  as is necessary to enable the Series 1997-3  Certificateholders  to
prepare their tax returns.  Such  obligation of the Servicer  shall be deemed to
have been  satisfied  to the extent that  substantially  comparable  information
shall be  provided  by the Paying  Agent  pursuant  to any  requirements  of the
Internal Revenue Code as from time to time in effect.


                                   ARTICLE VI

                               Amortization Events

                  Section 6.01.  Additional  Amortization Events. The occurrence
of any of the following events shall,  immediately  upon the occurrence  thereof
without  notice or other action on the part of the Trustee or the Series  1997-3
Certificateholders, be deemed to be an Amortization Event solely with respect to
Series 1997-3:

                           (a) on any  Determination  Date, the Class B Invested
                  Amount on the  related  Distribution  Date will be  reduced to
                  less than 1% of the Initial Invested Amount;

                           (b) on the  last  day of any Due  Period  during  the
                  Accumulation  Period the  product  of (i) the total  amount of
                  Principal  Receivables  as of such last day,  (ii) the  Series
                  1997-3 Allocation Percentage (expressed as a decimal) for such
                  Due Period and (iii) the excess  (expressed  as a decimal)  of
                  100%  over the  Floating  Allocation  Percentage  for such Due
                  Period,  shall  fail to  equal at  least  100% of the  Class A
                  Principal Funding Account Balance on such day;

                           (c) the Portfolio Yield for any Due Period during the
                  Accumulation Period shall be less than the weighted average of
                  the Certificate  Rates for all outstanding  Series included in
                  Group One as of the last day of such Due Period;

                           (d) the Class A Invested  Amount shall not be paid in
                  full on the Class A Expected Final Payment Date or the Class B
                  Invested  Amount  shall  not be paid  in  full on the  Class B
                  Expected Final Payment Date;
<PAGE>
                                       64



                           (e) the amount of Surplus Finance Charge  Collections
                  averaged over any three  consecutive  Due Periods shall not be
                  equal to or in excess of the Required  Surplus  Finance Charge
                  Amount for the last of such three consecutive Due Periods.


                                   ARTICLE VII

                   Optional Repurchase; Additional Issuances;
                               Accumulation Period

                  Section 7.01 Optional Repurchase. (a) On the Distribution Date
occurring on or after the date on which the Invested  Amount is reduced to 5% of
the  Initial  Invested  Amount or less,  the  Sellers  shall  have the option to
purchase the Series 1997-3  Certificateholders'  Interest,  at a purchase  price
equal to the Reassignment Amount for such Distribution Date.

                  (b) The  Sellers  shall give the  Servicer  and the Trustee at
least 30 days prior  written  notice of the date on which the Sellers  intend to
exercise such purchase option. Not later than 12:00 noon, New York City time, on
such  Distribution  Date the Sellers shall deposit the Reassignment  Amount into
the Collection  Account in immediately  available funds. Such purchase option is
subject to payment in full of the Reassignment  Amount. The Reassignment  Amount
shall be distributed as set forth in Section 8.01(b).

                  (c) If the Loan Agreement or any Additional  Loan Agreement so
provides,   in  the  event  the   Sellers   exercise   such   purchase   option,
notwithstanding  anything to the contrary  contained in the Agreement or in this
Series  Supplement,  the Series  1997-3  Certificates  shall be deemed to remain
outstanding  as if such purchase  option were not exercised and the terms of the
Agreement and this Series  Supplement (other than Section 4.11(c) through (i) of
this Series  Supplement and Section  12.02(c) of the Agreement)  shall otherwise
remain in effect  until the  earlier of (i) one year and one day  following  the
Termination Date, (ii) the date on which the Trust terminates and (iii) the date
on which the Class A Invested  Amount,  the Class B Invested  Amount and the CCA
Invested  Amount,  if any, would have been paid in full had such purchase option
not been exercised;  provided that distributions which would otherwise
<PAGE>
                                       65


have  been made to the  Series  1997-3  Certificateholders  shall be made to the
Sellers.

                  Section   7.02.   Additional   Issuances   of  Series   1997-3
Certificates. (a) Subject to Sections 7.02(b) and (c) of this Series Supplement,
the Banks may at any time,  or from time to time,  during the  Revolving  Period
direct the Trustee,  on behalf of the Trust, to authenticate  additional Class A
Certificates  (the  "Additional  Class A  Certificates")  and additional Class B
Certificates (the "Additional Class B Certificates") on the first day of any Due
Period (each such day, an  "Additional  Issuance  Date").  Any such  issuance of
Additional  Investor  Certificates  is  referred  to  herein  as an  "Additional
Issuance".   The  outstanding  Investor  Certificates  of  each  class  and  the
Additional  Investor  Certificates  of that class  shall be equally  and ratably
entitled as provided  herein to the  benefits of the  Agreement  and this Series
Supplement without preference,  priority or distinction,  all in accordance with
the terms and provisions of the Agreement and this Series Supplement.

                  (b) The obligation of the Trustee to  authenticate  Additional
Investor   Certificates  is  subject  to  the   satisfaction  of  the  following
conditions:

                           (i) on or before the fifth  Business Day  immediately
                  preceding the Additional Issuance Date, the Sellers shall have
                  given the Trustee,  the  Servicer,  each Rating Agency and the
                  Cash  Collateral  Depositor  written notice of such Additional
                  Issuance and the Additional Issuance Date;

                           (ii) the Sellers shall have  delivered to the Trustee
                  an amended  Series  Supplement,  in form  satisfactory  to the
                  Trustee, executed by each party hereto other than the Trustee;

                           (iii) after giving effect to the Additional Issuance,
                  the total amount of Principal  Receivables  shall be equal to,
                  or greater than, the Required Minimum Principal Balance;

                           (iv) either (A) the Sellers, the Trustee and the Cash
                  Collateral  Depositor  shall have entered into an amendment to
                  the Loan  Agreement  or (B) the  Sellers,  the Trustee and the
                  additional   Series   Enhancer  shall  have
<PAGE>
                                       66


                  entered into an additional series enhancement agreement;

                           (v) the Sellers shall have  delivered to the Trustee,
                  each  Rating  Agency and the Cash  Collateral  Depositor a Tax
                  Opinion dated the Additional  Issuance  Date,  with respect to
                  such Additional Issuance;

                           (vi) the Sellers shall have  delivered to each Rating
                  Agency  (i)   Opinion(s)   of  Counsel  with  respect  to  the
                  enforceability  of the  Additional  Loan  Agreement,  (ii)  an
                  Opinion of Counsel to the effect that such Additional Issuance
                  will not violate  applicable Federal securities laws and (iii)
                  such other documents as the Rating Agencies may request;

                           (vii) the  Rating  Agency  Condition  shall have been
                  satisfied with respect to such Additional Issuance;

                           (viii)  such  Additional  Issuance  shall not have an
                  Adverse  Effect  and is not  reasonably  expected  to  have an
                  Adverse Effect at any time in the future;

                           (ix) as of the  Additional  Issuance Date all amounts
                  due and owing to the Series  1997-3  Certificateholders  on or
                  prior   to  such   date   shall   have   been   paid  to  such
                  Certificateholders  and there  shall  not be any  unreimbursed
                  Investor Charge-Offs;

                           (x)  the  excess  of  the  principal  amount  of  the
                  Additional  Investor  Certificates over the issue price of the
                  Additional Investor  Certificates shall not exceed the maximum
                  amount  permitted under the Internal  Revenue Code without the
                  creation of original issue discount (assuming that there is no
                  original   issue   discount   on   the   Additional   Investor
                  Certificates for any other reason);

                           (xi) the Banks' Interest shall not be less than 2% of
                  the total amount of Principal Receivables,  in each case as of
                  the  Additional  Issuance  Date,  after giving  effect to such
                  Additional Issuance;

                           (xii) the ratio of the Controlled Amortization Amount
                  (after  giving  effect  to such  Additional  Issuance)  to the
                  Invested  Amount  (after  giving  effect  to  such  Additional
                  Issuance)  shall  be  equal  to the
<PAGE>
                                       67


                  ratio of the  Controlled  Amortization  Amount  (before giving
                  effect to such  Additional  Issuance) to the  Invested  Amount
                  (before giving effect to such Additional Issuance);

                           (xiii) the  Sellers  shall  cause  additional  credit
                  enhancement to be provided by the Cash Collateral Depositor or
                  any additional  Series  Enhancer for the exclusive  benefit of
                  the Investor  Certificateholders;  provided  that the ratio of
                  the Available  Enhancement Amount (after giving effect to such
                  increase) to the Invested  Amount (after giving effect to such
                  Additional  Issuance)  shall be  greater  than or equal to the
                  ratio  of the  Available  Enhancement  Amount  (before  giving
                  effect to such increase) to the Invested Amount (before giving
                  effect to such Additional Issuance);

                           (xiv)  the  ratio of the sum of the  increase  in the
                  Class A  Investment  Fees  (as a  result  of  such  Additional
                  Issuance) to the increase in the Invested  Amount (as a result
                  of such Additional  Issuance) shall be less than or equal 150%
                  of the ratio of the sum of the Class A Investment  Fees (as of
                  the Closing  Date) to the  Invested  Amount (as of the Closing
                  Date); and

                           (xv) the Sellers shall have  delivered to the Trustee
                  an Officer's Certificate,  dated the Additional Issuance Date,
                  confirming  that the  conditions  referred  to above have been
                  satisfied.

Upon  satisfaction of the above conditions,  the Trustee shall  authenticate the
Additional Investor Certificates upon execution thereof by the Sellers.

                  (c)  Notwithstanding  any  provision of the  Agreement or this
Series  Supplement,  this Series Supplement may be amended by the Servicer,  the
Sellers and the Trustee,  without the consent of any of the  Certificateholders,
to provide for an Additional Issuance, provided that the conditions set forth in
Section 7.02(b) have been satisfied.

                  (d)  Notwithstanding  any provision of this Series Supplement,
the Sellers  may cause  additional  Series  Enhancement  to be provided  for the
benefit of the  Investor  Certificateholders  in lieu of (or in addition  to) an
Additional  Cash  Collateral  Account  provided in connection
<PAGE>
                                       68


with an Additional  Issuance;  provided that the conditions set forth in Section
7.02(b) will be satisfied.

                  Section   7.03.   Accumulation   Period   Postponement.    The
Accumulation  Period is  scheduled  to  commence at the close of business on the
fourth-to-last  Business Day of January  2001;  provided,  however,  that if the
Accumulation  Period Length  (determined as described below) is less than twelve
months, upon notice to the Trustee,  the Sellers, the Rating Agency and the Cash
Collateral  Depositor,  the Servicer,  at its option,  may elect to postpone the
date on which the Accumulation  Period actually  commences to the fourth-to-last
Business  Day of any month that  precedes the month that is the number of months
prior to the Class A Expected  Final  Payment  Date,  equal to the  Accumulation
Period Length such that the number of Monthly Periods in the Accumulation Period
will equal or exceed the Accumulation  Period Length. On the Determination  Date
immediately  preceding  the January 2001  Distribution  Date,  the Servicer will
determine the "Accumulation Period Length" which will equal the number of months
such that the sum of the  Accumulation  Period Amounts for each Monthly  Period,
beginning  with (and  assigning the largest  Accumulation  Period Amount to) the
Monthly Period that ends on the day preceding the Class A Expected Final Payment
Date, when aggregated  with the  Accumulation  Period Amounts for each preceding
Monthly Period will equal or exceed the Initial Invested Amount. If the Servicer
elects to postpone the commencement of the Accumulation  Period pursuant to this
Section 7.03,  then on each  Determination  Date  thereafter  until the date the
Accumulation  Period  commences,  the Servicer will recalculate the Accumulation
Period Length; provided, however, that (i) the length of the Accumulation Period
shall  not be  shorter  than  the  period  determined  as of the  first  date of
determination  unless an additional Series, other than an Excluded Series, shall
have been  issued  since such date and such Series is in its  revolving  period;
(ii) the length of the Accumulation  Period will not be less than one month; and
(iii) no election to postpone,  or further  postpone,  the  commencement  of the
Accumulation  Period  shall be made  after an  economic  amortization  event (as
defined in the related  Supplement)  shall have occurred and is continuing  with
respect to any other Series.  If the Accumulation  Period Length as recalculated
on any such  Determination  Date  exceeds  the  number of Monthly  Periods  then
scheduled to be included in the Accumulation  Period,  the commencement  date of
the Accumulation  Period will be
<PAGE>
                                       69


changed to the later of (x) such  Determination  Date and (y) the fourth-to-last
Business  Day of a  month  such  that  the  number  of  Monthly  Periods  in the
Accumulation Period will equal the recalculated  Accumulation Period Length. Any
notice  by  the  Servicer   electing  to  postpone  (or  further  postpone)  the
commencement  of the  Accumulation  Period  pursuant to this  Section 7.03 shall
specify (i) the Accumulation  Period Length,  (ii) the commencement  date of the
Accumulation Period and (iii) the Controlled Amortization Amount with respect to
each Monthly Period.

                  SECTION 7.04.  Initial  Principal  Payment Date.  The "Initial
Principal Payment Date" for the Series 1997-3 Certificates shall be the February
2000 Distribution Date;  provided,  however,  that the Initial Principal Payment
Date shall  automatically  be extended to the next  succeeding  Class A Interest
Payment Date (but not later then the Class A Expected Final Payment Date) unless
the Servicer or the Trustee at the direction of the  Servicer,  not more than 60
days  and not less  than 30 days  prior to the  then-current  Initial  Principal
Payment Date,  mails a notice to the Sellers,  the Investor  Certificateholders,
each Rating  Agency,  the Cash  Collateral  Depositor  and any  Additional  Cash
Collateral  Depositor  of the  Servicer's  election  not to extend  the  Initial
Principal  Payment Date, in which case the Initial  Principal Payment Date shall
be fixed as the Class A Interest Payment Date immediately  following the date of
such notice. In addition,  if and so long as the Series 1997-3  Certificates are
listed on the Luxembourg Stock Exchange,  the Trustee, or the Servicer on behalf
of the  Trustee,  shall  publish  or  cause  to be  published  in an  Authorized
Newspaper of general  circulation  in Luxembourg a notice to the effect that the
Servicer has elected not to extend the Initial Principal Payment Date.


                                  ARTICLE VIII

                               Final Distributions

                  Section 8.01. Sale of Certificateholders' Interest Pursuant to
Section 2.06 or 10.01 of the Agreement. (a) Purchase Price. (i) The amount to be
paid  by the  Sellers  with  respect  to  Series  1997-3  in  connection  with a
repurchase of the  Certificateholders'  Interest pursuant to Section 2.06 of the
Agreement shall equal the Reassignment  Amount for the first  Distribution  Date
following the Due
<PAGE>
                                       70


Period in which the reassignment  obligation  arises under the Agreement.

                  (ii) The  amount to be paid by the  Sellers  with  respect  to
Series  1997-3  in  connection  with a  repurchase  of  the  Certificateholders'
Interest  pursuant to Section 10.01 of the Agreement  shall equal the sum of (x)
the Reassignment Amount for the Distribution Date of such repurchase and (y) the
sum of (A) the excess,  if any, of (I) a price equivalent to the average of bids
quoted on the Record Date preceding the date of repurchase or, if not a Business
Day, on the next  succeeding  Business  Day by at least two  recognized  dealers
selected  by the  Trustee  (which  may be  selected  from the list  attached  as
Schedule 1), for the purchase by such dealers of a security  which is similar to
the Class A Certificates with a remaining  maturity  approximately  equal to the
remaining  maturity of the Class A Certificates  and rated by each Rating Agency
in the rating category originally assigned to the Class A Certificates over (II)
the portion of the Reassignment  Amount attributable to the Class A Certificates
and (B) the  excess,  if any, of (I) a price  equivalent  to the average of bids
quoted on such  Record Date or, if not a Business  Day,  on the next  succeeding
Business Day by at least two recognized  dealers  selected by the Trustee (which
may be selected  from the list attached as Schedule 1), for the purchase by such
dealers  of a  security  which is  similar  to the Class B  Certificates  with a
remaining maturity  approximately equal to the remaining maturity of the Class B
Certificates  and rated by each Rating Agency in the rating category  originally
assigned to the Class B Certificates  over (II) the portion of the  Reassignment
Amount attributable to the Class B Certificates.

                  (b)  Distributions  Pursuant  to Section  7.01 of this  Series
Supplement and Sections 2.06,  10.01 or 12.02(c) of the Agreement.  With respect
to the  Reassignment  Amount  deposited into the Collection  Account pursuant to
Section 7.01 or 8.01 or any  Termination  Proceeds from the sale of  Receivables
(or  interests  therein)  allocable  to the  Series  1997-3  Certificateholders'
Interest  deposited into the Collection  Account pursuant to Section 12.02(c) of
the Agreement, the Trustee shall, not later than 12:00 noon, New York City time,
on the date of deposit,  make deposits or distributions of the following amounts
(in the priority set forth below and, in each case,  after giving  effect to any
deposits and  distributions  otherwise  to be made on such

<PAGE>
                                       71


date) in immediately available funds: (i)(x) the Class A Invested Amount on such
date will be deposited  into the Class A Principal  Funding  Account and (y) the
amount of accrued  and  unpaid  interest  on the  unpaid  balance of the Class A
Certificates,  plus the amount of Class A Additional Interest,  if any, for such
Distribution  Date and any Class A Additional  Interest  previously  due but not
deposited into the Class A Interest  Funding  Account on any prior  Distribution
Date, will be deposited into the Class A Interest Funding  Account,  (ii)(x) the
Class B Invested Amount on such date will be retained in the Collection  Account
for distribution to the Class B Certificateholders and (y) the amount of accrued
and unpaid interest on the unpaid balance of the Class B Certificates,  plus the
amount of Class B Additional  Interest,  if any, for such  Distribution Date and
any Class B Additional  Interest previously due but not deposited into the Class
B Interest Funding Account on a prior  Distribution Date, will be deposited into
the Class B Interest Funding Account, and (iii) the CCA Invested Amount, if any,
on such date will be distributed, pro rata, to the Cash Collateral Depositor and
each Additional Cash  Collateral  Depositor,  for application in accordance with
the  Loan  Agreement  and  each   Additional   Loan   Agreement,   respectively.
Notwithstanding  anything to the contrary contained in this Series Supplement or
the  Agreement,  the  amount of any  excess  determined  pursuant  to  paragraph
(a)(ii)(y)(A)  shall be  distributed to the Class A  Certificateholders  and the
amount of any excess  determined  pursuant to paragraph  (a)(ii)(y)(B)  shall be
distributed to the Class B Certificateholders.  The remainder of any Termination
Proceeds shall be distributed,  pro rata, to the Cash  Collateral  Depositor and
each Additional Cash Collateral Depositor for application in accordance with the
Loan Agreement and each Additional Loan Agreement, respectively.

                  (c)  Notwithstanding  anything to the  contrary in this Series
Supplement  or the  Agreement,  the  entire  amount  deposited  in the  Class  A
Principal  Funding  Account and the  Interest  Funding  Accounts  and the amount
retained  in  the   Collection   Account  for   distribution   to  the  Class  B
Certificateholders  pursuant  to Section  7.01 or 8.01 and all other  amounts on
deposit therein for distribution to the Series 1997-3  Certificateholders  shall
be distributed in full to the Series 1997-3  Certificateholders on such date and
shall be deemed to be a final  distribution  pursuant  to  Section  12.02 of the
Agreement.
<PAGE>
                                       72


                  Section 8.02. Distribution of Proceeds of Sale, Disposition or
Liquidation of the  Receivables  Pursuant to Section 9.02 of the Agreement.  (a)
Not  later  than  12:00  noon,  New York City  time,  on the  Distribution  Date
following  the date on which the  Insolvency  Proceeds  are  deposited  into the
Collection  Account  pursuant to Section  9.02(b) of the Agreement,  the Trustee
shall (in the following  priority and, in each case,  after giving effect to any
deposits and distributions  otherwise to be made on such Distribution  Date) (i)
deduct an amount equal to the Class A Invested Amount on such  Distribution Date
from the portion of the  Insolvency  Proceeds  allocated to Allocable  Principal
Collections  and deposit such amount in the Class A Principal  Funding  Account,
provided that the amount of such deposit shall not exceed the product of (x) the
portion of the Insolvency Proceeds allocated to Allocable Principal  Collections
and (y) the  Principal  Allocation  Percentage  with  respect to the related Due
Period,  (ii)  deduct an amount  equal to the  Class B  Invested  Amount on such
Distribution  Date from the  portion of the  Insolvency  Proceeds  allocated  to
Allocable Principal Collections and retain such amount in the Collection Account
for  distribution to the Class B  Certificateholders,  provided that such amount
shall not exceed  (x) the  product of the  portion  of the  Insolvency  Proceeds
allocated  to  Allocable  Principal  Collections  and the  Principal  Allocation
Percentage with respect to such Due Period,  minus (y) the amount deposited into
the  Class A  Principal  Funding  Account  pursuant  to  clause  (a)(i)  of this
sentence,  and (iii) deduct an amount equal to the CCA Invested Amount,  if any,
on such Distribution Date from the portion of the Insolvency  Proceeds allocated
to Allocable Principal Collections and distribute,  pro rata, such amount to the
Cash Collateral  Depositor and each  Additional  Cash  Collateral  Depositor for
application  in  accordance  with the Loan  Agreement and each  Additional  Loan
Agreement, respectively, provided that the amount of such distribution shall not
exceed (x) the product of the portion of the  Insolvency  Proceeds  allocated to
Allocable  Principal  Collections and the Principal  Allocation  Percentage with
respect  to such Due  Period  minus  (y) the  amount  deposited  in the  Class A
Principal  Funding  Account  pursuant to clause  (a)(i) of this sentence and the
amount  retained in the  Collection  Account  pursuant to clause (a)(ii) of this
sentence.  The remainder of the portion of the Insolvency  Proceeds allocated to
Allocable Principal  Collections shall be allocated to the Sellers' Interest and
shall be released to the Sellers on such Distribution Date.
<PAGE>
                                       73


                  (b) Not later than  12:00  noon,  New York City time,  on such
Distribution  Date,  the Trustee shall (in the  following  priority and, in each
case, after giving effect to any deposits and distributions otherwise to be made
on such Distribution  Date) (i) deduct an amount equal to the sum of (w) Class A
Monthly  Interest for such  Distribution  Date, (x) any Class A Monthly Interest
previously  due but not  deposited  into Class A Interest  Funding  Account on a
prior Distribution Date, (y) the amount of Class A Additional Interest,  if any,
for such  Distribution Date and any Class A Additional  Interest  previously due
but  not  deposited  into  the  Class  A  Interest  Funding  Account  on a prior
Distribution  Date, and (z) the amount of the Class A Funding Account  Shortfall
for such Distribution Date and any Class A Funding Account Shortfall  previously
due but not  deposited  into the Class A  Interest  Funding  Account  on a prior
Distribution  Date,  from the portion of the  Insolvency  Proceeds  allocated to
Allocable  Finance  Charge  Collections  and deposit  such amount in the Class A
Interest  Funding  Account,  provided  that the amount of such deposit shall not
exceed the product of (x) the portion of the  Insolvency  Proceeds  allocated to
Allocable Finance Charge  Collections,  (y) the Floating  Allocation  Percentage
with  respect to such Due Period and (z) a fraction,  the  numerator of which is
the Class A  Invested  Amount  with  respect to such  Distribution  Date and the
denominator  of which is the Invested  Amount with respect to such  Distribution
Date and (ii) deduct an amount equal to the sum of (w) Class B Monthly  Interest
for such Distribution Date, (x) any Class B Monthly Interest  previously due but
not deposited into the Class B Interest Funding Account on a prior  Distribution
Date,  (y)  the  Cumulative   Excess   Interest  Amount  with  respect  to  such
Distribution  Date, and (z) the amount of Class B Additional  Interest,  if any,
for such  Distribution Date and any Class B Additional  Interest  previously due
but  not  deposited  into  the  Class  B  Interest  Funding  Account  on a prior
Distribution  Date,  from the portion of the  Insolvency  Proceeds  allocated to
Allocable  Finance Charge  Collections  and deposit such amount into the Class B
Interest  Funding  Account,  provided  that the amount of such deposit shall not
exceed the product of (x) the portion of the  Insolvency  Proceeds  allocated to
Allocable Finance Charge  Collections,  (y) the Floating  Allocation  Percentage
with  respect to such Due Period and (z) a fraction,  the  numerator of which is
the Class B  Invested  Amount  with  respect to such  Distribution  Date and the
denominator  of which is the Invested  Amount with respect to such  Distribution
Date. The remainder of the Insolvency
<PAGE>
                                       74


Proceeds allocated to Allocable Finance Charge Collections shall be distributed,
pro rata, to the Cash  Collateral  Depositor and each Additional Cash Collateral
Depositor  for  application  in  accordance  with  the  provisions  of the  Loan
Agreement and each Additional Loan Agreement, respectively.

                  (c)  Notwithstanding  anything to the  contrary in this Series
Supplement  or the  Agreement,  the  entire  amount  deposited  in the  Class  A
Principal  Funding  Account and the  Interest  Funding  Accounts  and the amount
retained  in  the   Collection   Account  for   distribution   to  the  Class  B
Certificateholders  pursuant to this  Section  and all other  amounts on deposit
therein  for  distribution  to the  Series  1997-3  Certificateholders  shall be
distributed in full to the Series 1997-3  Certificateholders on the Distribution
Date on which  funds are  deposited  pursuant  to this  Section  (or,  if not so
deposited on a  Distribution  Date, on the  immediately  following  Distribution
Date) and shall be deemed to be a final  distribution  pursuant to Section 12.02
of the Agreement.

                  (d)  Notwithstanding  any  provision of the  Agreement or this
Series Supplement, for purposes of Section 9.02(a) of the Agreement, the Holders
of the Series  1997-3  Certificates  shall not be deemed to have  disapproved  a
liquidation of the Receivables following an Insolvency Event with respect to any
of the  Sellers  unless  (i)  holders of more than 50% of the  aggregate  unpaid
principal  amount  of  each  of  the  Class  A  Certificates  and  the  Class  B
Certificates  and (ii) the Cash  Collateral  Depositor and each  Additional Cash
Collateral Depositor shall have disapproved of such liquidation (or, if the Cash
Collateral  Depositor and any Additional  Cash  Collateral  Depositor shall have
assigned all or part of their respective  interests under the Loan Agreement and
such Additional Loan Agreements,  respectively, to one or more Persons, then one
or more Persons holding more than 50% of such interest shall have disapproved of
such liquidation).

                                   ARTICLE IX

                                    Covenants

                  Section 9.01.  Reduction in Portfolio  Yield . Citibank (South
Dakota),  in its  capacity  as a  Seller,  and each  Additional  Seller,  hereby
covenant that upon the
<PAGE>
                                       75


occurrence of an Amortization  Event described in Section 6.01(e),  except as is
otherwise  required by any  Requirements of Law, it will not reduce the Periodic
Rate Finance Charge applicable to any Account to a rate that would result in the
weighted  average of the Periodic  Rate Finance  Charges  applicable  to all the
Accounts  as of the last day of any Due  Period  being  less than the sum of the
weighted average of the Certificate Rates of each outstanding  Series as of such
last day and 6%.


                                    ARTICLE X

                            Miscellaneous Provisions

                  Section 10.01.  Ratification of Agreement.  As supplemented by
this Series Supplement,  the Agreement is in all respects ratified and confirmed
and the Agreement as so  supplemented by this Series  Supplement  shall be read,
taken and construed as one and the same instrument.

                  Section  10.02.  Counterparts.  This Series  Supplement may be
executed  in two or more  counterparts,  and by  different  parties on  separate
counterparts,  each of  which  shall  be an  original,  but all of  which  shall
constitute one and the same instrument.

<PAGE>
                                       76

                  Section 10.03.  Governing Law. THIS SERIES SUPPLEMENT SHALL BE
CONSTRUED  IN  ACCORDANCE  WITH  THE  LAWS OF THE  STATE  OF NEW  YORK,  WITHOUT
REFERENCE TO ITS CONFLICT OF LAW  PROVISIONS,  AND THE  OBLIGATIONS,  RIGHTS AND
REMEDIES OF THE PARTIES  HEREUNDER  SHALL BE DETERMINED IN ACCORDANCE  WITH SUCH
LAWS.

                  Section 10.04.   Construction of Agreement. The Sellers hereby
confirm that the security  interest  granted to the Trustee  pursuant to Section
13.18 of the Agreement is for the benefit of (a) the Investor Certificateholders
and (b) the Cash Collateral Depositor and the Additional Cash

<PAGE>

Collateral Depositor to the extent of the CCA Invested Amount.


                  IN WITNESS WHEREOF,  the Sellers, the Servicer and the Trustee
have caused  this  Series  Supplement  to be duly  executed by their  respective
officers as of the day and year first above written.


                                                 CITIBANK (SOUTH DAKOTA), N.A.,
                                                     Seller and Servicer,

                                       by
                                                     --------------------------
   Title:


                                                     CITIBANK (NEVADA), NATIONAL
                                                     ASSOCIATION, Seller,

                                       by
                                                     --------------------------
   Title:


                                                  YASUDA BANK AND TRUST COMPANY
                                                     (U.S.A.), Trustee,

                                       by
                                                     --------------------------
   Title:




<PAGE>


                                                                 EXHIBIT A-1
REGISTERED
$____________ *

No. R-                              CUSIP No. [       ]

                  [Unless this Class A Certificate is presented by an authorized
representative of The Depository Trust Company, a New York corporation  ("DTC"),
to the issuer or its agent for  registration  of transfer,  exchange or payment,
and any  certificate  issued is  registered in the name of Cede & Co. or in such
other  name as is  requested  by an  authorized  representative  of DTC (and any
payment  is made to Cede & Co. or to such  other  entity as is  requested  by an
authorized  representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR
VALUE OR  OTHERWISE BY OR TO ANY PERSON IS WRONGFUL  inasmuch as the  registered
owner hereof, Cede & Co., has an interest herein.]

                       CITIBANK CREDIT CARD MASTER TRUST I

                                  SERIES 1997-3

              6.839% CLASS A CREDIT CARD PARTICIPATION CERTIFICATE

                      Class A Expected Final Payment Date:
                       The February 2002 Distribution Date

                 Each $1,000 minimum denomination represents an
                  undivided interest in certain assets of the
                       CITIBANK CREDIT CARD MASTER TRUST I

the corpus of which consists primarily of receivables generated from time to
time in the ordinary course of business in a portfolio of revolving credit card
accounts by

                          CITIBANK (SOUTH DAKOTA), N.A.
                                       and
                               CITIBANK (NEVADA),
                              NATIONAL ASSOCIATION

and, in certain  circumstances,  certain  Additional  Sellers (as defined in the
Pooling and Servicing Agreement referred to below).

<PAGE>
                                       2



                  (Not an interest in or obligation of Citibank
                    (South Dakota), N.A., Citibank (Nevada),
                 National Association, any Additional Sellers or
                             any affiliate thereof)


















- -------------------

*  Denominations of $1,000 and integral multiples of $1,000
   in excess thereof.

<PAGE>
                                       3


This certifies that (the "Class A Certificateholder") is the registered owner of
a  fractional  undivided  interest  in certain  assets of a trust (the  "Trust")
created pursuant to the Pooling and Servicing Agreement dated as of May 29, 1991
(as amended and supplemented,  the  "Agreement"),  as supplemented by the Series
1997-3  Supplement  dated as of February 10, 1997 (as amended and  supplemented,
the "Series  Supplement"),  among  Citibank  (South  Dakota),  N.A.,  a national
banking  association,  as  Seller  and  Servicer,  Citibank  (Nevada),  National
Association,  a national  banking  association,  as Seller,  and Yasuda Bank and
Trust Company  (U.S.A.),  a New York trust company,  as trustee (the "Trustee").
The corpus of the Trust  consists of (i) a  portfolio  of all  receivables  (the
"Receivables")  existing in the revolving credit card accounts  identified under
the Agreement from time to time (the "Accounts"), (ii) all Receivables generated
under the Accounts from time to time thereafter,  (iii) funds collected or to be
collected from cardholders in respect of the  Receivables,  (iv) all funds which
are from time to time on deposit  in the  Collection  Account  and in the Series
Accounts,  (v) the  benefits of the Cash  Collateral  Account and (vi) all other
assets and interests  constituting  the Trust. The Holder of this Certificate is
entitled to the benefit of funds on deposit in a Cash Collateral  Account to the
extent  provided  in the  Series  Supplement.  Although  a  summary  of  certain
provisions of the Agreement and the Series  Supplement is set forth below and on
the Summary of Terms and Conditions attached hereto and made a part hereof, this
Class A  Certificate  does not purport to summarize the Agreement and the Series
Supplement and reference is made to the Agreement and the Series  Supplement for
information  with  respect  to the  interests,  rights,  benefits,  obligations,
proceeds and duties evidenced  hereby and the rights,  duties and obligations of
the  Trustee.  A copy  of the  Agreement  and  the  Series  Supplement  (without
schedules)  may be  requested  from the Trustee by writing to the Trustee at the
Corporate Trust Office. To the extent not defined herein,  the capitalized terms
used herein have the  meanings  ascribed to them in the  Agreement or the Series
Supplement, as applicable.

                  This Class A Certificate is issued under and is subject to the
terms, provisions and conditions of the Agreement and the Series Supplement,  to
which Agreement and Series  Supplement,  each as amended and  supplemented  from
time to time, the Class A  Certificateholder  by virtue of the acceptance hereof
assents and is bound.
<PAGE>
                                       4


                  It  is  the   intent   of  the   Sellers   and  the   Investor
Certificateholders  that, for Federal,  state and local income and franchise tax
purposes only, the Investor  Certificates  will qualify as  indebtedness  of the
Sellers  secured  by the  Receivables.  The  Class A  Certificateholder,  by the
acceptance of this Class A Certificate, agrees to treat this Class A Certificate
for Federal,  state and local income and franchise tax purposes as  indebtedness
of the Sellers.

                  In general,  payments of principal with respect to the Class A
Certificates are limited to the Class A Invested Amount,  which may be less than
the unpaid principal  balance of the Class A Certificates.  The Class A Expected
Final Payment Date is the February 2002  Distribution  Date,  but principal with
respect  to the  Class A  Certificates  may be  paid  (i) on the  first  Class A
Interest  Payment Date following the Servicer's  election not to extend the date
on which principal may first be payable with respect to the Class A Certificates
provided that such date may not be earlier than the February  2000  Distribution
Date or later than the February 2002 Distribution Date and (ii) earlier or later
under  certain  other  circumstances  described in the  Agreement and the Series
Supplement.  If for one or more months during the Accumulation  Period there are
not sufficient  funds to pay the  Controlled  Amortization  Amount,  then to the
extent that excess funds are not available on subsequent Distribution Dates with
respect to the  Accumulation  Period to make up for such  shortfalls,  the final
payment of principal of the Class A Certificates will occur later than the Class
A Expected Final Payment Date. If the principal of the Class A Certificates  and
the  Class B  Certificates  is not paid in full on or  prior to the  Termination
Date,  the  Trustee  will  sell or  cause  to be sold on such  Termination  Date
Principal Receivables (and the related Finance Charge Receivables) (or interests
therein)  in an  amount  equal  to  110%  of  the  Invested  Amount  as of  such
Termination Date, subject to certain limitations,  and shall immediately deposit
the  Termination  Proceeds  allocable to the Series  1997-3  Certificateholders'
Interest in the Collection Account.  The Termination Proceeds shall be allocated
and   distributed   to  the   Class  A   Certificateholders   and  the  Class  B
Certificateholders in accordance with the Series Supplement.

                  Unless  the  certificate  of  authentication  hereon  has been
executed by or on behalf of the Trustee, by manual or facsimile signature,  this
Class A Certificate  shall not
<PAGE>
                                       5


be entitled to any benefit  under the  Agreement or the Series  Supplement or be
valid for any purpose.


                  IN  WITNESS  WHEREOF,  the  Banks  have  caused  this  Class A
Certificate to be duly executed.


                                                  CITIBANK (SOUTH DAKOTA), N.A.,


                                                  By: __________________________
                                      Name:
                                     Title:


                                                     CITIBANK (NEVADA),
                                                     NATIONAL ASSOCIATION,


                                                   By: _________________________
                                      Name:
                                     Title:

Dated:

<PAGE>
                                       6

                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION

This  is one of the  Class  A  Certificates  described  in the  within-mentioned
Agreement and Series Supplement.


YASUDA BANK AND TRUST COMPANY (U.S.A.),
as Trustee,


By: _________________________
           Authorized Officer


or


By: CITIBANK, N.A.,
           as Authenticating Agent
           for the Trustee,


By: _________________________
           Authorized Officer

<PAGE>
                                       7



                       CITIBANK CREDIT CARD MASTER TRUST I

                                  SERIES 1997-3

              6.839% CLASS A CREDIT CARD PARTICIPATION CERTIFICATE

                                Summary of Terms


                  The Receivables  consist of Principal  Receivables which arise
generally from the purchase of merchandise and services and amounts  advanced to
cardholders  as  cash  advances  and  Finance  Charge  Receivables  which  arise
generally from Periodic Rate Finance  Charges,  Cash Advance Fees,  Late Payment
Fees and  annual  membership  fees with  respect to the  Accounts.  This Class A
Certificate is one of a series of  Certificates  entitled  Citibank  Credit Card
Master Trust I, Series 1997-3 (the "Series 1997-3  Certificates"),  and one of a
class thereof  entitled 6.839% Class A Credit Card  Participation  Certificates,
Series  1997-3  (the  "Class  A  Certificates"),  each  of  which  represents  a
fractional  undivided  interest in certain assets of the Trust. The Trust Assets
are allocated in part to the  certificateholders  of all outstanding Series (the
"Certificateholders' Interest") with the remainder allocated to the Sellers. The
aggregate  interest  represented by the Class A Certificates  at any time in the
Principal Receivables in the Trust shall not exceed an amount equal to the Class
A  Invested  Amount  at such  time.  The  Class A  Initial  Invested  Amount  is
$400,000,000. The Class A Invested Amount on any date will be an amount equal to
(a) the Class A Initial  Invested  Amount,  minus  (b) the  aggregate  amount of
principal payments made to Class A Certificateholders  prior to such date, minus
(c) the Class A Principal  Funding Account Balance as of such date and minus (d)
the excess, if any, of the aggregate amount of Class A Investor Charge-Offs over
Class A Investor  Charge-Offs  reimbursed pursuant to Section 4.08 of the Series
Supplement prior to such date. In addition to the Class A Certificates,  a class
of  the  Series  1997-3  Certificates   entitled  6.989%  Class  B  Credit  Card
Participation  Certificates,  Series 1997-3 (the "Class B Certificates") will be
issued.  Also, a Sellers' Certificate has been issued to the Sellers pursuant to
the Agreement which represents the Sellers' Interest.

                  Subject  to the terms and  conditions  of the  Agreement,  the
Sellers may from time to time  direct the  Trustee,
<PAGE>
                                       8


on  behalf  of  the  Trust,  to  issue  one  or  more  new  Series  of  Investor
Certificates,  which will represent fractional undivided interests in certain of
the Trust Assets.

                  On each Payment  Date,  the Paying Agent shall  distribute  to
each  Class A  Certificateholder  of  record  on the last  day of the  preceding
calendar month (each a "Record Date") such Class A Certificateholder's  pro rata
share of such amounts on deposit in the Class A Interest  Funding Account or the
Class  A   Principal   Funding   Account   as  are   payable   to  the  Class  A
Certificateholders   pursuant  to  the  Agreement  and  the  Series  Supplement.
Distributions  with  respect  to this  Class A  Certificate  will be made by the
Paying Agent by check mailed to the address of the Class A Certificateholder  of
record  appearing  in the  Certificate  Register  without  the  presentation  or
surrender  of this Class A  Certificate  or the making of any  notation  thereon
(except  for the final  distribution  in respect  of this  Class A  Certificate)
except that with respect to Class A Certificates  registered in the name of Cede
& Co., the nominee for The Depository Trust Company,  distributions will be made
in the form of  immediately  available  funds.  Final  payment  of this  Class A
Certificate  will be made only upon  presentation  and surrender of this Class A
Certificate  at  the  office  or  agency   specified  in  the  notice  of  final
distribution  delivered  by the  Trustee  to the Class A  Certificateholders  in
accordance with the Agreement and the Series Supplement.

                  On the  Distribution  Date  occurring  on or after the date on
which the  Invested  Amount is reduced to 5% of the Initial  Invested  Amount or
less,   the  Sellers   have  the  option  to   repurchase   the  Series   1997-3
Certificateholders'  Interest in the Trust.  The  repurchase  price  (determined
after  giving   effect  to  any  payment  of  principal  and  interest  on  such
Distribution   Date)  will  be  equal  to  the  Reassignment   Amount  for  such
Distribution Date.

                  This Class A Certificate  does not represent an obligation of,
or an interest in, the Sellers, the Servicer or any affiliate of any of them and
is not insured or guaranteed by the Federal Deposit Insurance Corporation or any
other  governmental  agency or  instrumentality.  This  Class A  Certificate  is
limited  in  right  of  payment  to  certain  Collections  with  respect  to the
Receivables  (and certain other  amounts),  all as more  specifically  set forth
hereinabove and in the Agreement and the Series Supplement.
<PAGE>
                                       9


                  The  Agreement  or any  Supplement  may,  subject  to  certain
conditions,  be amended by the Sellers,  the  Servicer  and the Trustee  without
Investor  Certificateholder consent. The Trustee may, but shall not be obligated
to, enter into any such amendment which affects the Trustee's rights,  duties or
immunities under the Agreement or otherwise.

                  The Agreement or any  Supplement may also be amended from time
to  time   (including  in  connection   with  the  issuance  of  a  Supplemental
Certificate) by the Servicer,  the Sellers and the Trustee,  with the consent of
the Holders of Investor  Certificates  evidencing  not less than  66-2/3% of the
aggregate unpaid principal amount of the Investor  Certificates of all adversely
affected Series,  for the purpose of adding any provisions to or changing in any
manner or  eliminating  any of the provisions of the Agreement or any Supplement
or of  modifying  in any manner the rights of the  Investor  Certificateholders;
provided,  however,  that no such  amendment  shall (i) reduce in any manner the
amount  of or delay  the  timing  of any  distributions  to be made to  Investor
Certificateholders  or  deposits of amounts to be so  distributed  or the amount
available  under any Series  Enhancement  without the  consent of each  affected
Investor  Certificateholder,  (ii)  change  the  definition  of or the manner of
calculating the interest of any Investor  Certificateholder  without the consent
of  each  affected  Investor  Certificateholder,   (iii)  reduce  the  aforesaid
percentage required to consent to any such amendment without the consent of each
Investor  Certificateholder or (iv) adversely affect the rating of any Series or
Class by the  Rating  Agency  without  the  consent of the  Holders of  Investor
Certificates  of such Series or Class  evidencing  not less than  66-2/3% of the
aggregate unpaid principal amount of the Investor Certificates of such Series or
Class.  The Trustee  may,  but shall not be  obligated  to,  enter into any such
amendment which affects the Trustee's  rights,  duties or immunities  under this
Agreement or otherwise.

                  The  Class  A  Certificates   are  issuable  only  in  minimum
denominations of $1,000 and integral  multiples of $1,000.  The transfer of this
Class A  Certificate  shall  be  registered  in the  Certificate  Register  upon
surrender of this Class A Certificate for registration of transfer at any office
or agency  maintained  by the  Transfer  Agent and  Registrar  accompanied  by a
written  instrument of transfer,  in a form  satisfactory  to the Trustee or the
Transfer Agent and Registrar,  duly executed by the Class A Certificateholder or
such Class A Certificateholder's  attorney,  and
<PAGE>
                                       10


duly authorized in writing with such signature guaranteed,  and thereupon one or
more new  Class A  Certificates  of  authorized  denominations  and for the same
aggregate  fractional  undivided  interest  will  be  issued  to the  designated
transferee or transferees.

                  As provided in the Series Supplement, the Banks may, from time
to time, during the Revolving Period, subject to certain conditions set forth in
the  Series   Supplement,   cause  the  Trustee  to  issue  Additional  Class  A
Certificates. When issued, the Additional Class A Certificates will be identical
in all  respects  to the  other  outstanding  Class A  Certificates  and will be
equally and ratably  entitled to the  benefits of the  Agreement  and the Series
Supplement without preference, priority or distinction.

                  As   provided  in  the   Agreement   and  subject  to  certain
limitations  therein set forth,  Class A Certificates  are  exchangeable for new
Class A Certificates evidencing like aggregate fractional undivided interests as
requested  by  the  Class  A   Certificateholder   surrendering   such  Class  A
Certificates.  No service  charge may be imposed for any such  exchange  but the
Servicer or Transfer Agent and Registrar may require payment of a sum sufficient
to cover any tax or other governmental  charge that may be imposed in connection
therewith.

                  The Servicer,  the Trustee,  the Paying Agent and the Transfer
Agent and Registrar and any agent of any of them,  may treat the person in whose
name  this  Class A  Certificate  is  registered  as the  owner  hereof  for all
purposes,  and neither the  Servicer  nor the  Trustee,  the Paying  Agent,  the
Transfer Agent and Registrar, nor any agent of any of them, shall be affected by
notice  to  the  contrary  except  in  certain  circumstances  described  in the
Agreement.

                  THIS CLASS A CERTIFICATE SHALL BE CONSTRUED IN ACCORDANCE WITH
THE LAWS OF THE STATE OF NEW YORK,  WITHOUT  REFERENCE  TO ITS  CONFLICT  OF LAW
PROVISIONS,  AND THE OBLIGATIONS,  RIGHTS AND REMEDIES OF THE PARTIES  HEREUNDER
SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS.

<PAGE>
                                       11

                                   ASSIGNMENT


Social Security or other identifying number of assignee
- -------------------------

FOR VALUE  RECEIVED,  the undersigned  hereby sells,  assigns and transfers unto
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                         (name and address of assignee)

the  within  certificate  and all  rights  thereunder,  and  hereby  irrevocably
constitutes  and appoints  ______________________,  attorney,  to transfer  said
certificate  on the books  kept for  registration  thereof,  with full  power of
substitution in the premises.

Dated:  ______________                         _____________________*



                                               Signature Guaranteed:


                                               ---------------------


- -------------------------

(*) NOTE: The signature to this  assignment must correspond with the name of the
registered  owner as it appears on the face of the within  Certificate  in every
particular, without alteration, enlargement or any change whatsoever.

<PAGE>

                                                                    EXHIBIT A-2

REGISTERED   
      $__________*

No. R-                                                 CUSIP NO. [           ]

                  [Unless this Class B Certificate is presented by an authorized
representative of The Depository Trust Company, a New York corporation  ("DTC"),
to the issuer or its agent for  registration  of transfer,  exchange or payment,
and any  certificate  issued is  registered in the name of Cede & Co. or in such
other  name as is  requested  by an  authorized  representative  of DTC (and any
payment  is made to Cede & Co. or to such  other  entity as is  requested  by an
authorized  representative of DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR
VALUE OR  OTHERWISE BY OR TO ANY PERSON IS WRONGFUL  inasmuch as the  registered
owner hereof, Cede & Co., has an interest herein.]


                       CITIBANK CREDIT CARD MASTER TRUST I

                                  SERIES 1997-3

                           6.989% CLASS B CREDIT CARD

                            PARTICIPATION CERTIFICATE
                      Class B Expected Final Payment Date:
                       The February 2002 Distribution Date

                 Each $1,000 minimum denomination represents an
                   undivided interest in certain assets of the
                       CITIBANK CREDIT CARD MASTER TRUST I

the corpus of which  consists  primarily of  receivables  generated from time to
time in the ordinary course of business in a portfolio of revolving  credit card
accounts by
                          CITIBANK (SOUTH DAKOTA), N.A.
                                       and
                               CITIBANK (NEVADA),
                              NATIONAL ASSOCIATION

and, in certain  circumstances,  certain  Additional  Sellers (as defined in the
Pooling and Servicing Agreement referred to below).

<PAGE>
                                       2


                  (Not an interest in or obligation of Citibank
                    (South Dakota), N.A., Citibank (Nevada),
                 National Association, any Additional Sellers or
                             any affiliate thereof)



- --------------------

*  Denominations of $1,000 and integral multiples of $1,000
   in excess thereof.

<PAGE>
                                       3


This certifies that (the "Class B Certificateholder") is the registered owner of
a  fractional  undivided  interest  in certain  assets of a trust (the  "Trust")
created pursuant to the Pooling and Servicing Agreement dated as of May 29, 1991
(as amended and supplemented,  the  "Agreement"),  as supplemented by the Series
1997-3  Supplement  dated as of February 10, 1997 (as amended and  supplemented,
the "Series  Supplement"),  among  Citibank  (South  Dakota),  N.A.,  a national
banking  association,  as  Seller  and  Servicer,  Citibank  (Nevada),  National
Association,  a national  banking  association,  as Seller,  and Yasuda Bank and
Trust Company  (U.S.A.),  a New York trust company,  as trustee (the "Trustee").
The corpus of the Trust  consists of (i) a  portfolio  of all  receivables  (the
"Receivables")  existing in the revolving credit card accounts  identified under
the Agreement from time to time (the "Accounts"), (ii) all Receivables generated
under the Accounts from time to time thereafter,  (iii) funds collected or to be
collected from cardholders in respect of the  Receivables,  (iv) all funds which
are from time to time on deposit  in the  Collection  Account  and in the Series
Accounts,  (v) the  benefits of the Cash  Collateral  Account and (vi) all other
assets and interests  constituting  the Trust. The Holder of this Certificate is
entitled to the benefit of funds on deposit in a Cash Collateral  Account to the
extent  provided  in the  Series  Supplement.  Although  a  summary  of  certain
provisions of the Agreement and the Series  Supplement is set forth below and on
the Summary of Terms and Conditions attached hereto and made a part hereof, this
Class B  Certificate  does not purport to summarize the Agreement and the Series
Supplement and reference is made to the Agreement and the Series  Supplement for
information  with  respect  to the  interests,  rights,  benefits,  obligations,
proceeds and duties evidenced  hereby and the rights,  duties and obligations of
the  Trustee.  A copy  of the  Agreement  and  the  Series  Supplement  (without
schedules)  may be  requested  from the Trustee by writing to the Trustee at the
Corporate Trust Office. To the extent not defined herein,  the capitalized terms
used herein have the  meanings  ascribed to them in the  Agreement or the Series
Supplement, as applicable.

                  This Class B Certificate is issued under and is subject to the
terms, provisions and conditions of the Agreement and the Series Supplement,  to
which Agreement and Series  Supplement,  each as amended and  supplemented  from
time to time, the Class B  Certificateholder  by virtue of the acceptance hereof
assents and is bound.
<PAGE>
                                       4


                  It  is  the   intent   of  the   Sellers   and  the   Investor
Certificateholders  that, for Federal,  state and local income and franchise tax
purposes only, the Investor  Certificates  will qualify as  indebtedness  of the
Sellers  secured  by the  Receivables.  The  Class B  Certificateholder,  by the
acceptance of this Class B Certificate, agrees to treat this Class B Certificate
for Federal,  state and local income and franchise tax purposes as  indebtedness
of the Sellers.

                  In general,  payments of principal with respect to the Class B
Certificates are limited to the Class B Invested Amount,  which may be less than
the unpaid principal balance of the Class B Certificates,  except that principal
payments  may be made in  excess of the Class B  Invested  Amount to the  extent
amounts are available for that purpose in the Cash Collateral Account. The Class
B Expected  Final  Payment  Date is the February  2002  Distribution  Date,  but
principal with respect to the Class B Certificates  may be paid (i) on the first
Class B Interest  Payment Date following a Principal  Payment Event on which the
Class A  Certificateholders  have been paid in full  provided that such date may
not be  earlier  than the  February  2000  Distribution  Date or later  than the
February  2002  Distribution  Date and (ii) earlier or later under certain other
circumstances  described in the Agreement and the Series  Supplement.  Principal
payments with respect to the Class B  Certificates  will not commence  until the
Class A  Invested  Amount is paid in full.  In  addition,  the final  payment of
principal of the Class B Certificates will occur later than the Class B Expected
Final Payment Date if Collections  of Receivables  allocable to pay principal of
the Class B Certificates  are insufficient to pay the Class B Invested Amount on
or prior to such Distribution Date. If the principal of the Class A Certificates
and the Class B Certificates  is not paid in full on or prior to the Termination
Date,  the  Trustee  will  sell or  cause  to be sold on such  Termination  Date
Principal Receivables (and the related Finance Charge Receivables) (or interests
therein)  in an  amount  equal  to  110%  of  the  Invested  Amount  as of  such
Termination Date, subject to certain limitations,  and shall immediately deposit
the  Termination  Proceeds  allocable to the Series  1997-3  Certificateholders'
Interest in the Collection Account.  The Termination Proceeds shall be allocated
and   distributed   to  the   Class  A   Certificateholders   and  the  Class  B
Certificateholders in accordance with the Series Supplement.
<PAGE>
                                       5


                  Unless  the  certificate  of  authentication  hereon  has been
executed by or on behalf of the Trustee, by manual or facsimile signature,  this
Class B Certificate  shall not be entitled to any benefit under the Agreement or
the Series Supplement or be valid for any purpose.


                  IN  WITNESS  WHEREOF,  the  Banks  have  caused  this  Class B
Certificate to be duly executed.


                                                  CITIBANK (SOUTH DAKOTA), N.A.,

                                                  By: __________________________
                                                  Name:
                                                  Title:


                                                  CITIBANK (NEVADA),
                                                  NATIONAL ASSOCIATION,

                                                  By: _________________________
                                                  Name:
                                                  Title:


Dated:

<PAGE>

                    TRUSTEE'S CERTIFICATE OF AUTHENTICATION

This  is one of the  Class  B  Certificates  described  in the  within-mentioned
Agreement and Series Supplement.

YASUDA BANK AND TRUST COMPANY (U.S.A.),
as Trustee,


By: _________________________
           Authorized Officer


or


By: CITIBANK, N.A.,
           as Authenticating Agent
           for the Trustee,


By: _________________________
           Authorized Officer



<PAGE>


                       CITIBANK CREDIT CARD MASTER TRUST I

                                  SERIES 1997-3

              6.989% CLASS B CREDIT CARD PARTICIPATION CERTIFICATE

                         Summary of Terms and Conditions


                  The Receivables  consist of Principal  Receivables which arise
generally from the purchase of merchandise and services and amounts  advanced to
cardholders  as cash advances and Finance  Charge  Receivables  which  generally
arise from Periodic Rate Finance  Charges,  Cash Advance Fees, Late Payment Fees
and  annual  membership  fees  with  respect  to  the  Accounts.  This  Class  B
Certificate is one of a series of  Certificates  entitled  Citibank  Credit Card
Master Trust I, Series 1997-3 (the "Series 1997-3  Certificates"),  and one of a
class thereof  entitled 6.989% Class B Credit Card  Participation  Certificates,
Series  1997-3  (the  "Class  B  Certificates"),  each  of  which  represents  a
fractional  undivided  interest in certain assets of the Trust. The Trust Assets
are allocated in part to the  certificateholders  of all outstanding Series (the
"Certificateholders' Interest") with the remainder allocated to the Sellers. The
aggregate  interest  represented by the Class B Certificates  at any time in the
Principal Receivables in the Trust shall not exceed an amount equal to the Class
B  Invested  Amount  at such  time.  The  Class B  Initial  Invested  Amount  is
$25,540,000.  The Class B Invested Amount on any date will be an amount equal to
(a) the Class B Initial  Invested  Amount,  minus  (b) the  aggregate  amount of
principal payments made to Class B Certificateholders  prior to such date (other
than any principal payments made to Class B Certificateholders from the proceeds
of a  Reimbursement  Draw  Amount  pursuant  to  Section  4.11(f)  of the Series
Supplement),  minus (c) the aggregate amount of Class B Investor Charge-Offs for
all  prior  Distribution  Dates  pursuant  to  Section  4.08(b)  of  the  Series
Supplement, minus (d) the aggregate amount of Subordinated Principal Collections
allocated on all prior  Distribution  Dates  pursuant to Section  4.10(a) of the
Series Supplement  (excluding any Subordinated  Principal  Collections that have
resulted in a reduction in the CCA Invested  Amount  pursuant to Section 4.08(c)
of the Series Supplement),  minus (e) an amount equal to the amount by which the
Class B  Invested  Amount  has been  reduced  on all  prior  Distribution  Dates
pursuant to Section  4.08(a) of the Series  Supplement,
<PAGE>
                                       2


and plus (f) the sum of (i) the aggregate amount of any Allocable  Miscellaneous
Payments  allocated and available on all prior  Distribution  Dates  pursuant to
Section  4.08(b)(i)  of the  Series  Supplement  and (ii) the  amount  of Excess
Finance  Charge  Collections  allocated and available on all prior  Distribution
Dates  pursuant to Section  4.09(f) of the Series  Supplement for the purpose of
reimbursing amounts deducted pursuant to the foregoing clauses (c), (d) and (e).
In  addition  to  the  Class  B  Certificates,  a  class  of the  Series  1997-3
Certificates  entitled  6.839% Class A Credit Card  Participation  Certificates,
Series  1997-3 (the "Class A  Certificates")  will be issued.  Also,  a Sellers'
Certificate  has been issued to the  Sellers  pursuant  to the  Agreement  which
represents the Sellers' Interest.

                  Subject  to the terms and  conditions  of the  Agreement,  the
Sellers may from time to time  direct the  Trustee,  on behalf of the Trust,  to
issue one or more new Series of  Investor  Certificates,  which  will  represent
fractional undivided interests in certain of the Trust Assets.

                  On each Payment  Date,  the Paying Agent shall  distribute  to
each  Class B  Certificateholder  of  record  on the last  day of the  preceding
calendar month (each a "Record Date") such Class B Certificateholder's  pro rata
share of such  amounts  (including  amounts  on  deposit in the Class B Interest
Funding  Account  or the  Collection  Account)  as are  payable  to the  Class B
Certificateholders   pursuant  to  the  Agreement  and  the  Series  Supplement.
Distributions  with  respect  to this  Class B  Certificate  will be made by the
Paying Agent by check mailed to the address of the Class B Certificateholder  of
record  appearing  in the  Certificate  Register  without  the  presentation  or
surrender  of this Class B  Certificate  or the making of any  notation  thereon
(except  for the final  distribution  in respect  of this  Class B  Certificate)
except that with respect to Class B Certificates  registered in the name of Cede
& Co., the nominee for the Depository Trust Company,  distributions will be made
in the form of  immediately  available  funds.  Final  payment  of this  Class B
Certificate  will be made only upon  presentation  and surrender of this Class B
Certificate  at  the  office  or  agency   specified  in  the  notice  of  final
distribution  delivered  by the  Trustee  to the Class B  Certificateholders  in
accordance with the Agreement and the Series Supplement.

                  On the  Distribution  Date  occurring  on or after the date on
which the  Invested  Amount is reduced to 5% of the
<PAGE>
                                       3


Initial  Invested  Amount or less, the Sellers have the option to repurchase the
Series 1997-3  Certificateholders'  Interest in the Trust.  The repurchase price
(determined after giving effect to any payment of principal and interest on such
Distribution   Date)  will  be  equal  to  the  Reassignment   Amount  for  such
Distribution Date.

                  This Class B Certificate  does not represent an obligation of,
or an interest in, the Sellers, the Servicer or any affiliate of any of them and
is not insured or guaranteed by the Federal Deposit Insurance Corporation or any
other  governmental  agency or  instrumentality.  This  Class B  Certificate  is
limited  in  right  of  payment  to  certain  Collections  with  respect  to the
Receivables  (and certain other  amounts),  all as more  specifically  set forth
hereinabove and in the Agreement and the Series Supplement.

                  The  Agreement  or any  Supplement  may,  subject  to  certain
conditions,  be amended by the Sellers,  the  Servicer  and the Trustee  without
Investor  Certificateholder consent. The Trustee may, but shall not be obligated
to, enter into any such amendment which affects the Trustee's rights,  duties or
immunities under the Agreement or otherwise.

                  The Agreement or any  Supplement may also be amended from time
to  time   (including  in  connection   with  the  issuance  of  a  Supplemental
Certificate) by the Servicer,  the Sellers and the Trustee,  with the consent of
the Holders of Investor  Certificates  evidencing  not less than  66-2/3% of the
aggregate unpaid principal amount of the Investor  Certificates of all adversely
affected Series,  for the purpose of adding any provisions to or changing in any
manner or  eliminating  any of the provisions of the Agreement or any Supplement
or of  modifying  in any manner the rights of the  Investor  Certificateholders;
provided,  however,  that no such  amendment  shall (i) reduce in any manner the
amount  of or delay  the  timing  of any  distributions  to be made to  Investor
Certificateholders  or  deposits of amounts to be so  distributed  or the amount
available  under any Series  Enhancement  without the  consent of each  affected
Investor  Certificateholder,  (ii)  change  the  definition  of or the manner of
calculating the interest of any Investor  Certificateholder  without the consent
of  each  affected  Investor  Certificateholder,   (iii)  reduce  the  aforesaid
percentage required to consent to any such amendment without the consent of each
Investor  Certificateholder or (iv) adversely affect the rating of any Series or
Class by the  Rating  Agency  without  the  consent of the  Holders of  Investor
<PAGE>
                                       4


Certificates  of such Series or Class  evidencing  not less than  66-2/3% of the
aggregate unpaid principal amount of the Investor Certificates of such Series or
Class.  The Trustee  may,  but shall not be  obligated  to,  enter into any such
amendment which affects the Trustee's  rights,  duties or immunities  under this
Agreement or otherwise.

                  The  Class  B  Certificates   are  issuable  only  in  minimum
denominations of $1,000 and integral  multiples of $1,000.  The transfer of this
Class B  Certificate  shall  be  registered  in the  Certificate  Register  upon
surrender of this Class B Certificate for registration of transfer at any office
or agency  maintained  by the  Transfer  Agent and  Registrar  accompanied  by a
written  instrument of transfer,  in a form  satisfactory  to the Trustee or the
Transfer Agent and Registrar,  duly executed by the Class B Certificateholder or
such Class B Certificateholder's  attorney,  and duly authorized in writing with
such signature guaranteed, and thereupon one or more new Class B Certificates of
authorized  denominations  and  for  the  same  aggregate  fractional  undivided
interest will be issued to the designated transferee or transferees.

                  As provided in the Series Supplement, the Banks may, from time
to time, during the Revolving Period, subject to certain conditions set forth in
the  Series   Supplement,   cause  the  Trustee  to  issue  Additional  Class  B
Certificates. When issued, the Additional Class B Certificates will be identical
in all  respects  to the  other  outstanding  Class B  Certificates  and will be
equally and ratably  entitled to the  benefits of the  Agreement  and the Series
Supplement without preference, priority or distinction.

                  As   provided  in  the   Agreement   and  subject  to  certain
limitations  therein set forth,  Class B Certificates  are  exchangeable for new
Class B Certificates evidencing like aggregate fractional undivided interests as
requested  by  the  Class  B   Certificateholder   surrendering   such  Class  B
Certificates.  No service  charge may be imposed for any such  exchange  but the
Servicer or Transfer Agent and Registrar may require payment of a sum sufficient
to cover any tax or other governmental  charge that may be imposed in connection
therewith.

                  The Servicer,  the Trustee,  the Paying Agent and the Transfer
Agent and Registrar and any agent of any of them,  may treat the person in whose
name  this  Class B  Certificate  is  registered  as the  owner  hereof  for all

<PAGE>
                                       5


purposes,  and neither the  Servicer  nor the  Trustee,  the Paying  Agent,  the
Transfer Agent and Registrar, nor any agent of any of them, shall be affected by
notice  to  the  contrary  except  in  certain  circumstances  described  in the
Agreement.


                  THIS CLASS B CERTIFICATE SHALL BE CONSTRUED IN ACCORDANCE WITH
THE LAWS OF THE STATE OF NEW YORK,  WITHOUT  REFERENCE  TO ITS  CONFLICT  OF LAW
PROVISIONS,  AND THE OBLIGATIONS,  RIGHTS AND REMEDIES OF THE PARTIES  HEREUNDER
SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS.

<PAGE>
                                       6

                                   ASSIGNMENT

Social Security or other identifying number of assignee
- -------------------------

                  FOR VALUE RECEIVED, the undersigned hereby sells, assigns and
transfers unto -------------------------------- -------------------------------
- -------------------------------------------------------------------------------
                         (name and address of assignee)

the  within  certificate  and all  rights  thereunder,  and  hereby  irrevocably
constitutes  and appoints  ______________________,  attorney,  to transfer  said
certificate  on the books  kept for  registration  thereof,  with full  power of
substitution in the premises.

Dated:  ______________                      _______________________*


                                            Signature Guaranteed:


                                            -----------------------


- -------------------------

(*) NOTE: The signature to this  assignment must correspond with the name of the
registered  owner as it appears on the face of the within  Certificate  in every
particular, without alteration, enlargement or any change whatsoever.



<PAGE>

                                                                  EXHIBIT B-1

                    FORM OF MONTHLY PAYMENT INSTRUCTIONS AND
                         NOTIFICATION TO THE TRUSTEE AND
                        THE CASH COLLATERAL DEPOSITOR 1/
                    ----------------------------------------

                          CITIBANK (SOUTH DAKOTA), N.A.




                       CITIBANK CREDIT CARD MASTER TRUST I

                                  SERIES 1997-3

                    ----------------------------------------




                  The undersigned,  a duly authorized representative of Citibank
(South Dakota),  N.A.  ("Citibank (South Dakota)"),  as Servicer pursuant to the
Pooling  and  Servicing  Agreement  dated  as of May 29,  1991 (as  amended  and
supplemented,  the "Pooling and Servicing  Agreement"),  among  Citibank  (South

<PAGE>
                                       2


Dakota),  Citibank  (Nevada),  National  Association  ("Citibank  (Nevada)") and
Yasuda Bank and Trust Company (U.S.A.), as trustee (the "Trustee"),  does hereby
certify as follows:

                           1.  Capitalized  terms used in this  Certificate have
                  their  respective  meanings  set  forth  in  the  Pooling  and
                  Servicing  Agreement or the Series 1997-3  Supplement dated as
                  of February 10, 1997, among Citibank (South Dakota),  Citibank
                  (Nevada)  and the Trustee (as  amended and  supplemented,  the
                  "Series  Supplement"),  as  applicable.  This  Certificate  is
                  delivered   pursuant   to   Section   4.11(i)  of  the  Series
                  Supplement.

                           2.  Citibank (South Dakota) is the Servicer.

                           3.  The undersigned is a Servicing Officer.

- --------------------
1/ To be delivered  not less than seven  calendar  days prior to the  applicable
Transfer Date.


                        NOTIFICATION TO MAKE WITHDRAWALS
                        FROM THE CASH COLLATERAL ACCOUNT

                  Pursuant  to  Sections  4.11(c)  through  (i)  of  the  Series
Supplement,  the  Servicer  does  hereby  instruct  the  Trustee  (i) to  make a
withdrawal  from the Cash  Collateral  Account  on , , which  date is a Transfer
Date,  in an  aggregate  amount as set forth  below in respect of the  following
amounts and (ii) to apply the proceeds of such  withdrawal  in  accordance  with
Section 4.11(i) of the Series Supplement:

         1.       Pursuant to Section 4.11(c):

                           Required Draw Amount in respect of the
         preceding Due Period       $______


         2.       Pursuant to Section 4.11(d):

                  Interest Draw Amount in respect of the
         preceding Due Period       $______


         3.       Pursuant to Section 4.11(e):

                  Default Draw Amount in respect of the
         preceding Due Period       $______


         4.       Pursuant to Section 4.11(f):

                  Reimbursement Draw Amount in respect of the
         preceding Due Period       $______


         5.       Pursuant to Section 4.11(g):

                  Special Draw Amount in respect of the
         preceding Due Period       $______


         6.       Pursuant to Section 4.11(h):

                  Class A Principal Draw Amount in respect of
         the preceding Due Period   $______
<PAGE>
                                       3


                  Class B Principal Draw Amount in respect of
         the preceding Due Period   $______


         7.       Pursuant to Section 4.11(i):

                  Total Draw Amount in respect of the
         preceding Due Period       $______


                              Total $______


                  IN WITNESS  WHEREOF,  the  undersigned  has duly executed this
Certificate this ___ day of --------------, ----.


                                                  CITIBANK (SOUTH DAKOTA), N.A.,
                                                  Servicer,

                                                    by
                                                      -------------------------
                                                  Name:
                                                  Title:

<PAGE>
                                                                   EXHIBIT B-2

                    FORM OF MONTHLY PAYMENT INSTRUCTIONS AND
                         NOTIFICATION TO THE TRUSTEE AND
                   THE ADDITIONAL CASH COLLATERAL DEPOSITOR 1/
                    ----------------------------------------

                          CITIBANK (SOUTH DAKOTA), N.A.




                       CITIBANK CREDIT CARD MASTER TRUST I

                                  SERIES 1997-3

                    ----------------------------------------


                  The undersigned,  a duly authorized representative of Citibank
(South Dakota),  N.A.  ("Citibank (South Dakota)"),  as Servicer pursuant to the
Pooling  and  Servicing  Agreement  dated  as of May 29,  1991 (as  amended  and
supplemented,  the "Pooling and Servicing  Agreement"),  among  Citibank  (South
Dakota),  Citibank  (Nevada),  National  Association  ("Citibank  (Nevada)") and
Yasuda Bank and Trust Company (U.S.A.), as trustee (the "Trustee"),  does hereby
certify as follows:

                           1.  Capitalized  terms used in this  Certificate have
                  their  respective  meanings  set  forth  in  the  Pooling  and
                  Servicing  Agreement or the Series 1997-3  Supplement dated as
                  of February 10, 1997 among Citibank (South  Dakota),  Citibank
                  (Nevada)  and the Trustee (as  amended and  supplemented,  the
                  "Series  Supplement"),  as  applicable.  This  Certificate  is
                  delivered   pursuant   to   Section   4.11(i)  of  the  Series
                  Supplement.

                           2.  Citibank (South Dakota) is the Servicer.

                           3.  The undersigned is a Servicing Officer.

- -------------------
         1/ To be  delivered  not less than  seven  calendar  days  prior to the
applicable Transfer Date.
<PAGE>
                                       2


                        NOTIFICATION TO MAKE WITHDRAWALS
                        FROM THE CASH COLLATERAL ACCOUNT

                  Pursuant  to  Sections  4.11(c)  through  (i)  of  the  Series
Supplement,  the  Servicer  does  hereby  instruct  the  Trustee  (i) to  make a
withdrawal  from the Cash  Collateral  Account  on , , which  date is a Transfer
Date,  in an  aggregate  amount as set forth  below in respect of the  following
amounts and (ii) to apply the proceeds of such  withdrawal  in  accordance  with
Section 4.11(i) of the Series Supplement:

         1.       Pursuant to Section 4.11(c):

                           Required Draw Amount in respect of the
         preceding Due Period       $______


         2.       Pursuant to Section 4.11(d):

                  Interest Draw Amount in respect of the
         preceding Due Period       $______


         3.       Pursuant to Section 4.11(e):

                  Default Draw Amount in respect of the
         preceding Due Period       $______


         4.       Pursuant to Section 4.11(f):

                  Reimbursement Draw Amount in respect of the
         preceding Due Period       $______


         5.       Pursuant to Section 4.11(g):

                  Special Draw Amount in respect of the
         preceding Due Period       $______


         6.       Pursuant to Section 4.11(h):

                  Class A Principal Draw Amount in respect of
         the preceding Due Period   $______
<PAGE>
                                       3


                  Class B Principal Draw Amount in respect of
         the preceding Due Period   $______


         7.       Pursuant to Section 4.11(i):

                  Total Draw Amount in respect of the
         preceding Due Period       $______


                              Total $______


                  IN WITNESS WHEREOF, the undersigned has duly executed this
Certificate this ___ day of --------------, ----.


                                                  CITIBANK (SOUTH DAKOTA), N.A.,
                                                  Servicer,

                                                    by
                                                      -------------------------
                                                  Name:
                                                  Title:

<PAGE>


                                                                     EXHIBIT C

                            FORM OF MONTHLY STATEMENT


                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

          -----------------------------------------------------------

                       CITIBANK CREDIT CARD MASTER TRUST I
                                  SERIES 1997-3
          -----------------------------------------------------------

                  The undersigned,  a duly authorized representative of Citibank
(South Dakota),  N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the
Pooling  and  Servicing  Agreement  dated  as of May 29,  1991 (as  amended  and
supplemented,  the "Agreement"), as supplemented by the Series 1997-3 Supplement
(as amended and supplemented,  the "Series  Supplement"),  among Citibank (South
Dakota), Seller and Servicer, Citibank (Nevada),  National Association,  Seller,
and Yasuda Bank and Trust Company (U.S.A.),  as Trustee, does hereby certify the
information set forth below.  Capitalized  terms used in this  Certificate  have
their respective meanings as set forth in the Agreement or Series Supplement, as
applicable.

                  This Certificate relates to the Due Period ending on ---------
and the related Distribution Date.


A.       Information Regarding the Portfolio

                  1.  Portfolio Yield       _____%

                           Yield component [Finance Charge Receivables collected
                  during the Due Period / Principal  Receivables in the Trust on
                  the last day of the prior Due Period] _____%

                  Credit loss component [net charged-off  Principal  Receivables
                  during the Due Period / Principal  Receivables in the Trust on
                  the last day of the prior Due Period] _____%

<PAGE>
                                       2


                  2.       New purchase rate [aggregate
                  purchases of merchandise and
                  services during the Due Period
                  / Receivables in the
                  Trust on the last day
                  of the prior Due Period]  _____%

                  3.       Total payment rate [aggregate
                  Collections during the Due
                  Period / Receivables in the
                  Trust on the last day of
                  the prior Due Period]     _____%

                  4.       Principal payment rate
                  [aggregate collections
                  with respect to Principal
                  Receivables during the Due
                  Period / Principal Receivables
                  in the Trust on the last
                  day of the prior Due Period]    _____%

                  5.       Aggregate amount of Principal
                  Receivables in the Trust:

                  Beginning of Due Period   $_____
                  Average  $_____
                  End of Due Period         $_____

                  6.       Delinquencies  (Aggregate outstanding balances in the
                           Accounts  that were  delinquent  by the time  periods
                           listed below as of the close of business of the month
                           preceding the  Distribution  Date, as a percentage of
                           aggregate  Receivables  as of the last day of the Due
                           Period)1/:

                           Current  _____%
                                    5-34 days delinquent      _____%
                           35-64 days delinquent  _____%
                           65-94 days delinquent  _____%
                           95-124 days delinquent    _____%
                           125-154 days delinquent   _____%
                           155-184 days delinquent   _____%

- ---------------------
         1/ To be delivered no later than the 15th day of each calendar month.
<PAGE>
                                       3


B.   Information Regarding Group One (Percentage Basis)

                  1.       Group One weighted average Certificate
                                    Rate    _____%

                  2.       Weighted average rate of Group One Investor
                                    Monthly Fees  _____%

                  3.       Group One Surplus Finance Charge Collections /
         the Invested Amount as of the last day of the
                                    prior Due Period _____%

                  4.       Group One Required Surplus Finance Charge
         Amount / the Invested Amount as of the last day 
                                    of the prior Due Period   _____%

                  5.       Group One Surplus Finance Charge Collections
                 minus Group One Required Surplus Finance Charge
                 Amount / the Invested Amount as of the last day
                         of the prior Due Period _____%


C.       Information Regarding Group One (Dollar Basis)

                  1.       Group One Total Investor Collections        $_____

                                    Group One Investor
                           Principal Collections  $_____

                           Group One Investor Finance
              Charge Collections    $_____

                  2.       Group One Investor Default Amount  $_____

                  3.       Group One Investor Monthly Interest         $_____

                  4.       Group One Investor Monthly Fees    .$_____

                  5.       Group One Surplus Finance Charge
                                    Collections   $_____

                  6.       Group One Required Surplus Finance Charge
                                    Amount  $_____

                  7.       Group One Surplus Finance Charge Collections
                 minus Group One Required Surplus Finance Charge
                                  Amount $_____
<PAGE>
                                       4


D.       Information Regarding Series 1997-3

                  1.(a)  Class A Invested Amount  $_____

           (b)  Class B Invested Amount     $_____

                  2.(a)  Class A Monthly Interest    $_____

           (b)  Class B Monthly Interest    $_____

                  3.(a)  Balance in the Class A Interest
                                      Funding Account         $_____

           (b)  Balance in the Class B Interest
                                      Funding Account         $_____

                  4.       Available Cash Collateral
                                    Amount  $_____

           % of Class B Invested
           Amount          _____%

                  5.(a)  Class A Investor Charge-offs         $_____

           (b)  Class B Investor Charge-offs      $_____

                  6.  Required Amount       $_____

                  7.  Draw on Cash Collateral Account         $_____

                  8.(a)  Class A Monthly Principal for the
                                      Distribution Date 1/    $_____

           (b)  Class B Monthly Principal for the
                                      Distribution Date 2/    $_____

                  9.       Balance in the Class A Principal
                                    Funding Account 1/        $_____


- --------------------
         2/ Applicable during the Accumulation Period, Principal Payment Period
and any Early Amortization Period.
<PAGE>
                                       5


E.       Information regarding Additional Investor Certificates 3/

                  1.       Additional Issuance Date   _____
                  2.       Invested Amount of Additional Class A
                                    Certificates  $_____

                  3.       Invested Amount of Additional Class B
                                    Certificates  $_____


F.       Information Regarding the Accumulation Period 4/

                  1.       Date on which the Accumulation Period will
                                    commence _____

                  2.       Controlled Amortization Amount for each
                                    Monthly Period

           (a)  [        ], 199[ ] Monthly Period $_____

           (b)  [        ], 199[ ] Monthly Period $_____


G.       Information Regarding the Principal Payment Period

                  1.       Does Servicer Elect Not to Extend? [Y/N]

                  2.       Initial Principal Payment
                           Date     [       ] Distribution Date


H.    Information Regarding Distributions, Certificateholders and Charge-offs 5/

                  1.(a)  The total amount of the distribution
                             to Class A Certificateholders on the
                            


- --------------------
         3/ Applicable after issuance of Additional Investor Certificates.

         4/ Applicable only if the Revolving Period has been extended.

         5/ The following information, as applicable, is to be included only on
Payment Dates.
<PAGE>
                                       6

                             Payment Date   $

           (b)  The total amount of the distribution
                             to Class B Certificateholders on the
                             Payment Date   $

                  2.(a)  The amount of the distribution set forth
                             in item 1(a) above in respect of
                             principal on the Class A Certificates     $

           (b)  The amount of the distribution set forth
                             in item 1(b) above in respect of
                             principal on the Class B Certificates     $

                  3.(a)  The amount of the distribution set forth
                             in item 1(a) above in respect of
                             interest on the Class A Certificates      $

           (b)  The amount of the distribution set forth
                             in item 1(b) above in respect of
                             interest on the Class B Certificates      $

                  4.(a)      The  amount,  if  any,  by  which  the  outstanding
                             principal  balance  of  the  Class  A  Certificates
                             exceeds  the Class A Invested  Amount as of the end
                             of the Record Date with respect to the Payment Date
                             $

           (b)               The  amount,  if  any,  by  which  the  outstanding
                             principal  balance  of  the  Class  B  Certificates
                             exceeds  the Class B Invested  Amount as of the end
                             of the Record Date with respect to the Payment Date
                             $


                               CITIBANK (SOUTH DAKOTA), N.A.,
                                 Servicer,

                               By:
                                  Name:
                                  Title:


<PAGE>


                                                                    EXHIBIT D

                     FORM OF MONTHLY SERVICER'S CERTIFICATE


                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION



                       CITIBANK CREDIT CARD MASTER TRUST I
                                  SERIES 1997-3



                  The undersigned,  a duly authorized representative of Citibank
(South Dakota),  N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the
Pooling  and  Servicing  Agreement  dated  as of May 29,  1991 (as  amended  and
supplemented,  the "Agreement"), as supplemented by the Series 1997-3 Supplement
(as amended and supplemented,  the "Series  Supplement"),  among Citibank (South
Dakota),  N.A., Seller and Servicer,  Citibank (Nevada),  National  Association,
Seller, and Yasuda Bank and Trust Company (U.S.A.), Trustee, does hereby certify
as follows:

                           1.  Capitalized  terms used in this  Certificate have
                  their  respective  meanings as set forth in the  Agreement  or
                  Series Supplement, as applicable.

                           2. Citibank (South Dakota) is, as of the date hereof,
                  the Servicer under the Agreement.

                           3.  The undersigned is a Servicing Officer.

                           4.  This Certificate relates to the Distribution Date
                  occurring on              .

                           5. As of the date  hereof,  to the best  knowledge of
                  the  undersigned,  the Servicer has  performed in all material
                  respects all its obligations  under the Agreement  through the
                  Due Period preceding such  Distribution Date [or, if there has
                  been a default in the performance of any such obligation,  set
                  forth in  detail  the (i)  nature  of such  default,  (ii) the
                  action  taken by the Sellers and  Servicer,  if any, to remedy
                  such  default  and  (iii)  the  current  status  of each  such
                  default; if applicable, insert "None"].
<PAGE>
                                       2


                           6. As of the date  hereof,  to the best  knowledge of
                  the undersigned, no Amortization Event has been deemed to have
                  occurred on or prior to such Distribution Date.

                           7. As of the date  hereof,  to the best  knowledge of
                  the  undersigned,  no  Lien  has  been  placed  on  any of the
                  Receivables other than pursuant to the Agreement (or, if there
                  is a Lien, such Lien consists of_________).


           IN WITNESS  WHEREOF,  the undersigned has duly executed and delivered
    this Certificate this day of , .


                                                  CITIBANK (SOUTH DAKOTA), N.A.,
                                                  Servicer,

                                                  By:_________________________
                                                   Name:
                                                   Title:



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