UNION TANK CAR CO
424B3, 1997-10-01
RAILROAD EQUIPMENT
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<PAGE>   1
 
Prospectus Supplement
(To Prospectus Dated January 16, 1997)
 
$100,000,000
 
UNION TANK CAR COMPANY
MEDIUM-TERM NOTES, SERIES A
DUE NINE MONTHS OR MORE FROM DATE OF ISSUE
 
Union Tank Car Company (the "Company") may from time to time offer pursuant to
this Prospectus Supplement its Medium-Term Notes, Series A (the "Notes"), with
an aggregate initial public offering price or purchase price of up to
$100,000,000, subject to reduction as a result of the sale of other securities
under the Registration Statement of which this Prospectus Supplement and the
accompanying Prospectus form a part or under a Registration Statement to which
this Prospectus Supplement and the accompanying Prospectus relate. Unless
otherwise specified in the applicable Pricing Supplement, each Note will mature
on a Business Day nine months or more from its date of issue (the "Stated
Maturity"), which maturity date may be subject to extension at the option of the
Company. Each Note may also be subject to redemption at the option of the
Company, or to repayment at the option of the Holder, prior to maturity. The
Notes may bear interest at a fixed rate (a "Fixed Rate Note"), which may be zero
in the case of certain Original Issue Discount Notes, or at a floating rate (a
"Floating Rate Note") determined by reference to LIBOR, the CD Rate, the
Commercial Paper Rate, the Federal Funds Rate, the Treasury Rate, the Prime
Rate, the CMT Rate or any other Base Rate, as selected by the purchaser and
agreed to by the Company, adjusted by the Spread or Spread Multiplier, if any,
applicable to such Note. Unless otherwise indicated, interest on each Fixed Rate
Note will be payable semiannually in arrears on each March 1 and September 1
(each an "Interest Payment Date") and at Stated Maturity. A Note may be issued
as an amortizing note (an "Amortizing Note") on which a portion or all the
principal amount is payable prior to Stated Maturity in accordance with a
schedule, by application of a formula, or by reference to an index. A Note may
be issued as an indexed note (an "Indexed Note") on which the amount of any
interest payment and/or the principal amount payable at Stated Maturity will be
determined by reference to the level of a specific index as defined in the
applicable Pricing Supplement. The interest rate or interest rate formula, reset
provisions, Issue Price, Stated Maturity, Interest Payment Dates, redemption,
repayment and extension provisions and certain other terms with respect to each
Note will be established at the time of issuance and set forth in a pricing
supplement to this Prospectus Supplement (a "Pricing Supplement").
 
Each Note will be represented by a Global Security registered in the name of a
nominee of The Depository Trust Company, as Depositary (a "Book-Entry Note").
Beneficial interests in Global Securities representing Book-Entry Notes will be
shown on, and transfers thereof will be effected only through, records
maintained by the Depositary and its participants. Book-Entry Notes will not be
issuable as certificated Notes except under the circumstances described herein.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THE PROSPECTUS, THIS PROSPECTUS SUPPLEMENT OR ANY
SUPPLEMENT HERETO. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------
                                                       PRICE TO           AGENT'S                 PROCEEDS TO THE
                                                       PUBLIC(1)          COMMISSION(2)           COMPANY(2)(3)
<S>                                                    <C>                <C>                     <C>
Per Note...........................................    100.000%           .125%-.750%             99.875%-99.250%
Total..............................................    $100,000,000       $125,000-$750,000       $99,875,000-$99,250,000
- -------------------------------------------------------------------------------------------------------------------------
</TABLE>
 
(1) Unless otherwise specified in the applicable Pricing Supplement, the price
    to public will be 100% of the principal amount.
(2) The Company will pay to Salomon Brothers Inc and Morgan Stanley & Co.
    Incorporated (each, an "Agent" and together, the "Agents") a commission,
    which may be in the form of a discount, of from .125% to .750%, depending on
    the Stated Maturity, of the principal amount of any Note sold through them
    as Agents (or sold to such Agents as principals in circumstances in which no
    other discount is agreed). For Notes with maturities greater than 30 years
    from their dates of issue, commissions will be negotiated at the time of
    sale. The Company has agreed to indemnify the Agents against certain
    liabilities, including liabilities under the Securities Act of 1933.
(3) Before deducting other expenses payable by the Company estimated at
    $100,000, including reimbursement of certain of the Agents' expenses.
 
The Notes are being offered on a continuous basis by the Company through the
Agents, which have agreed to use their reasonable efforts to solicit orders to
purchase the Notes. The Company may also sell Notes at a discount to each Agent
for its own account or for resale to one or more purchasers at varying prices
related to prevailing market prices at the time of resale or, if set forth in
the applicable Pricing Supplement, at a fixed public offering price, as
determined by the Agents. In addition, each Agent may offer Notes purchased by
it as principal to other dealers. Unless otherwise specified in the applicable
Pricing Supplement, any Note purchased by an Agent as principal will be
purchased at 100% of the principal amount thereof less a percentage equal to the
commission applicable to an agency sale of a Note of identical maturity. The
Company reserves the right to sell the Notes directly on its own behalf. The
Notes will not be listed on any securities exchange, and there can be no
assurance that the maximum amount of Notes offered by this Prospectus Supplement
will be sold or that there will be a secondary market for the Notes. The Company
reserves the right to withdraw, cancel or modify the offer made hereby without
notice. The Company or the Agents may reject any order to purchase Notes,
whether or not solicited, in whole or in part. See "Plan of Distribution".
 
SALOMON BROTHERS INC                                  MORGAN STANLEY DEAN WITTER
The date of this Prospectus Supplement is September 30, 1997.
<PAGE>   2
 
     CERTAIN PERSONS PARTICIPATING IN THIS OFFERING MAY ENGAGE IN TRANSACTIONS
THAT STABILIZE, MAINTAIN OR OTHERWISE AFFECT THE PRICE OF THE NOTES, INCLUDING
OVER-ALLOTMENT, STABILIZING AND SHORT-COVERING TRANSACTIONS IN THE NOTES, AND
THE IMPOSITION OF PENALTY BIDS. FOR A DESCRIPTION OF THESE ACTIVITIES, SEE "PLAN
OF DISTRIBUTION".
 
                               PRICING SUPPLEMENT
 
     Provisions of each transaction will be more fully described in a Pricing
Supplement to this Prospectus Supplement and the accompanying Prospectus.
Inconsistencies will be as described in the Pricing Supplement.
 
                              DESCRIPTION OF NOTES
 
     The following description of the particular terms of the Notes supplements,
and to the extent inconsistent therewith replaces, the description of the
general terms and provisions of the Debt Securities set forth in the Prospectus,
to which description reference is hereby made.
 
GENERAL
 
     The Notes are a series of Debt Securities issued under an Indenture dated
as of January 16, 1997, as supplemented (the "Debt Indenture"), between the
Company and Harris Trust and Savings Bank, as Trustee. At the date of this
Prospectus Supplement, the Notes offered pursuant to this Prospectus Supplement
are limited to an aggregate initial public offering price or purchase price of
up to $100,000,000, which amount is subject to reduction as a result of the sale
of other securities under the Registration Statement of which this Prospectus
Supplement and the accompanying Prospectus form a part or under a Registration
Statement to which this Prospectus Supplement and the accompanying Prospectus
relate. The aggregate amount of Notes may be increased from time to time to such
larger amount as may be authorized by the Company.
 
     The Notes will be unsecured and unsubordinated indebtedness of the Company
and will rank on a parity with all other unsecured and unsubordinated
indebtedness of the Company.
 
     The Notes will be offered on a continuous basis. Notes will be issued in
fully registered form only, without coupons. Each Note will be issued initially
as either a Book-Entry Note or, if specified in the applicable Pricing
Supplement, a certificated Note. Except as set forth in the Prospectus under
"Description of Debt Securities-Book Entry Registration", Book-Entry Notes will
not be issuable as certificated Notes. See "Book-Entry System" below.
 
     Unless otherwise specified in the applicable Pricing Supplement, the
authorized denominations of Notes denominated in U.S. dollars will be $1,000 and
any larger amount that is an integral multiple of $1,000.
 
     Unless otherwise specified in the applicable Pricing Supplement, each Note
will mature on a Business Day nine months or more from its date of issue, as
selected by the purchaser and agreed to by the Company, which maturity date may
be subject to extension at the option of the Company. Each Note may also be
subject to redemption at the option of the Company, or repayment at the option
of the Holder, prior to its Stated Maturity. Each Floating Rate Note will mature
on an Interest Payment Date for such Note.
 
     The Pricing Supplement relating to a Note will describe the following
terms: (i) whether such Note is a Fixed Rate Note, a Floating Rate Note, an
Amortizing Note and/or an Indexed Note; (ii) the price (expressed as a
percentage of the aggregate principal amount or face amount thereof) at which
such Note will be issued (the "Issue Price"); (iii) the date on which such Note
will be issued (the "Original Issue Date"); (iv) the date of the Stated
Maturity; (v) if such Note is a Fixed Rate Note, the rate per annum at which
such Note will bear interest, if any, and whether and
 
                                       S-2
<PAGE>   3
 
the manner in which such rate may be changed prior to its Stated Maturity; (vi)
if such Note is a Floating Rate Note, the Base Rate, the Initial Interest Rate,
the Interest Reset Period or the Interest Reset Dates, the Interest Payment
Dates, and, if applicable, the Index Maturity, the Maximum Interest Rate, the
Minimum Interest Rate, the Spread or Spread Multiplier (all as defined below),
and any other terms relating to the particular method of calculating the
interest rate for such Note and whether and the manner in which such Spread or
Spread Multiplier may be changed prior to Stated Maturity; (vii) whether such
Note is an Original Issue Discount Note (as defined below); (viii) if such Note
is an Amortizing Note, the terms for repayment prior to Stated Maturity; (ix) if
such Note is an Indexed Note, in the case of an Indexed Rate Note, the manner in
which the amount of any interest payment will be determined or, in the case of
an Indexed Principal Note, its Face Amount and the manner in which the principal
amount payable at Stated Maturity will be determined; (x) whether such Note may
be redeemed at the option of the Company, or repaid at the option of the Holder,
prior to Stated Maturity as described under "Optional Redemption, Repayment and
Repurchase" below and, if so, the provisions relating to such redemption or
repayment, including, in the case of an Original Issue Discount Note or Indexed
Note, the information necessary to determine the amount due upon redemption or
repayment; (xi) whether such Note is subject to an optional extension beyond its
Stated Maturity as described under "Extension of Maturity" below; and (xii) any
other terms of such Note not inconsistent with the provisions of the Indenture
under which such Note will be issued.
 
     "Business Day" with respect to any Note means any day, other than a
Saturday or Sunday, that is (i) not a legal holiday or a day on which banking
institutions are authorized or required by law, regulation or executive order to
be closed in The City of New York or the City of Chicago and (ii) if such Note
is a LIBOR Note (as defined below), a London Banking Day. "London Banking Day"
with respect to any Note means any day on which dealings in deposits in U.S.
dollars are transacted in the London interbank market.
 
     "Original Issue Discount Note" means (i) a Note, including any such Note
whose interest rate is zero, that has a stated redemption price at Stated
Maturity that exceeds its Issue Price by at least 0.25% of its stated redemption
price at Stated Maturity, multiplied by the number of full years from the
Original Issue Date to the Stated Maturity for such Note and (ii) any other Note
designated by the Company as issued with original issue discount for United
States Federal income tax purposes.
 
     A "basis point" or "bp" equals one one-hundredth of a percentage point.
 
PAYMENT OF PRINCIPAL AND INTEREST
 
     Unless otherwise specified in the applicable Pricing Supplement, payments
of interest on Notes (other than interest payable at Stated Maturity) will be
made, except as provided below, by check mailed to the Registered Holders of
such Notes (which, in the case of Global Securities representing Book-Entry
Notes, will be a nominee of the Depositary); provided, however, that, in the
case of a Note issued between a Regular Record Date and the related Interest
Payment Date, unless otherwise specified in the related Pricing Supplement,
interest for the period beginning on the Original Issue Date for such Note and
ending on such Interest Payment Date shall be paid on the next succeeding
Interest Payment Date to the Registered Holder of such Note on the related
Regular Record Date. A Holder of $10,000,000 or more in aggregate principal
amount of Notes of like tenor and term shall be entitled to receive such U.S.
dollar payments by wire transfer of immediately available funds, but only if
appropriate wire transfer instructions have been received in writing by the
Trustee for such Notes not later than fifteen calendar days prior to the
applicable Interest Payment Date. Unless otherwise specified in the applicable
Pricing Supplement, principal and any premium and interest payable at the Stated
Maturity of a Note will be paid in immediately available funds upon surrender of
such Note at the corporate trust office or agency of the Trustee for such Note
in The City of New York.
 
                                       S-3
<PAGE>   4
 
     Unless otherwise specified in the applicable Pricing Supplement, if the
principal of any Discount Note is declared to be due and payable immediately as
described under "Description of Debt Securities-Events of Default" in the
Prospectus, the amount of principal due and payable with respect to such Note
shall be limited to the aggregate principal amount (or face amount, in the case
of an Indexed Principal Note) of such Note multiplied by the sum of its Issue
Price (expressed as a percentage of the aggregate principal amount) plus the
original issue discount amortized from the date of issue to the date of
declaration, which amortization shall be calculated using the "interest method"
(computed in accordance with generally accepted accounting principles in effect
on the date of declaration).
 
     The Regular Record Date with respect to any Interest Payment Date for a
Floating Rate Note or for an Indexed Rate Note shall be the date (whether or not
a Business Day) fifteen calendar days immediately preceding such Interest
Payment Date, and for a Fixed Rate Note (unless otherwise specified in the
applicable Pricing Supplement) shall be the February 15 or August 15 (whether or
not a Business Day) immediately preceding such Interest Payment Date.
 
FIXED RATE NOTES
 
     Each Fixed Rate Note will bear interest from its Original Issue Date, or
from the last Interest Payment Date to which interest has been paid or duly
provided for, at the rate per annum stated in the applicable Pricing Supplement
until the principal amount thereof is paid or made available for payment, except
as described below under "Subsequent Interest Periods" and "Extension of
Maturity", and except that if so specified in the applicable Pricing Supplement,
the rate of interest payable on certain Fixed Rate Notes may be subject to
adjustment from time to time as described in such Pricing Supplement. Unless
otherwise set forth in the applicable Pricing Supplement, interest on each Fixed
Rate Note will be payable semiannually in arrears on each March 1 and September
1 (each such day being an "Interest Payment Date") and at Stated Maturity. If an
Interest Payment Date with respect to any Fixed Rate Note would otherwise be a
day that is not a Business Day, such Interest Payment Date shall not be
postponed; provided, however, that any payment required to be made in respect of
such Note on a date (including the day of Stated Maturity) that is not a
Business Day for such Note need not be made on such date, but may be made on the
next succeeding Business Day with the same force and effect as if made on such
date, and no additional interest shall accrue as a result of such delayed
payment. Each payment of interest in respect of an Interest Payment Date shall
include interest accrued through the day before such Interest Payment Date.
Interest on Fixed Rate Notes will be computed on the basis of a 360-day year of
twelve 30-day months.
 
FLOATING RATE NOTES
 
     Unless otherwise specified in the applicable Pricing Supplement, each
Floating Rate Note will bear interest from its Original Issue Date to the first
Interest Reset Date (such period, the "Initial Interest Period") for such Note
at the Initial Interest Rate set forth on the face thereof and in the applicable
Pricing Supplement. The interest rate on such Note for each Interest Reset
Period (as defined below) (and for the Initial Interest Period if so specified
in the applicable Pricing Supplement) will be determined by reference to an
interest rate basis (the "Base Rate"), plus or minus the Spread, if any, or
multiplied by the Spread Multiplier, if any. The "Spread" is the number of basis
points that may be specified in the applicable Pricing Supplement as being
applicable to such Note, and the "Spread Multiplier" is the percentage that may
be specified in the applicable Pricing Supplement as being applicable to such
Note, except in each case as described below under "Subsequent Interest Periods"
and "Extension of Maturity", and except that if so specified in the applicable
Pricing Supplement, the Spread or Spread Multiplier on certain Floating Rate
Notes may be subject to adjustment from time to time as described in such
Pricing Supplement. The applicable Pricing Supplement will designate one of the
following Base Rates as applicable to a Floating Rate Note: (i) LIBOR (a "LIBOR
Note"), (ii) the Commercial Paper Rate (a "Commercial Paper Rate
 
                                       S-4
<PAGE>   5
 
Note"), (iii) the Treasury Rate (a "Treasury Rate Note"), (iv) the Prime Rate (a
Prime Rate Note"), (v) CMT Rate (a "CMT Note"), (vi) the Federal Funds Rate (a
"Federal Funds Rate Note"), (vii) the CD Rate (a "CD Rate Note") or (viii) such
other Base Rate as is set forth in such Pricing Supplement and in such Note. The
"Index Maturity" for any Floating Rate Note is the period of maturity of the
instrument or obligation from which the Base Rate is calculated. "H.15(519)"
means the publication entitled "Statistical Release H.15(519), 'Selected
Interest Rates' ", or any successor publication, published by the Board of
Governors of the Federal Reserve System. "Composite Quotations" means the daily
statistical release entitled "Composite 3:30 p.m. Quotations for U.S. Government
Securities" published by the Federal Reserve Bank of New York.
 
     As specified in the applicable Pricing Supplement, a Floating Rate Note may
also have either or both of the following (in each case expressed as a rate per
annum on a simple interest basis): (i) a maximum limitation, or ceiling, on the
rate at which interest may accrue during any interest period ("Maximum Interest
Rate") and (ii) a minimum limitation, or floor, on the rate at which interest
may accrue during any interest period ("Minimum Interest Rate").
 
     Unless otherwise specified in the Pricing Supplement, the Trustee will be
the "Calculation Agent". Upon request of the holder of any Floating Rate Note,
the Calculation Agent will provide the interest rate then in effect and, if
determined, the interest rate will become effective as a result of a
determination for the next Interest Reset Date with respect to such Floating
Rate Note. Unless otherwise specified in the applicable Pricing Supplement, the
"Calculation Date", if applicable, pertaining to any Interest Determination Date
will be the earlier of (i) the tenth calendar day after such Interest
Determination Date, or, if such day is not a Business Day, the next succeeding
Business Day or (ii) the Business Day immediately preceding the applicable
Interest Payment Date or Stated Maturity, as the case may be.
 
     The interest rate on each Floating Rate Note will be reset daily, weekly,
monthly, quarterly, semiannually or annually (such period being the "Interest
Reset Period" for such Note, and the first day of each Interest Reset Period
being an "Interest Reset Date"), as specified in the applicable Pricing
Supplement. Unless otherwise specified in the applicable Pricing Supplement, the
Interest Reset Dates will be, in the case of Floating Rate Notes that reset
daily, each Business Day; in the case of Floating Rate Notes (other than
Treasury Rate Notes) that reset weekly, Wednesday of each week; in the case of
Treasury Rate Notes that reset weekly, Tuesday of each week (except as provided
below under "Treasury Rate Notes"); in the case of Floating Rate Notes that
reset monthly, the third Wednesday of each month; in the case of Floating Rate
Notes that reset quarterly, the third Wednesday of March, June, September and
December of each year; in the case of Floating Rate Notes that reset
semiannually, the third Wednesday of each of two months of each year specified
in the applicable Pricing Supplement; and, in the case of Floating Rate Notes
that reset annually, the third Wednesday of one month of each year specified in
the applicable Pricing Supplement. If an Interest Reset Date for any Floating
Rate Note would otherwise be a day that is not a Business Day, such Interest
Reset Date shall be postponed to the next succeeding Business Day, except that,
in the case of a LIBOR Note, if such Business Day is in the next succeeding
calendar month, such Interest Reset Date shall be the immediately preceding
Business Day.
 
     Unless otherwise specified in the applicable Pricing Supplement, the rate
of interest that goes into effect on any Interest Reset Date shall be determined
on a date (the "Interest Determination Date") preceding such Interest Reset
Date, as further described below. Unless otherwise specified in the applicable
Pricing Supplement, the Interest Determination Date pertaining to an Interest
Reset Date for a CD Rate Note or any Floating Rate Note for which the interest
rate is determined with reference to the CD Rate (the "CD Rate Interest
Determination Date"), for a Commercial Paper Rate Note or any Floating Rate Note
for which the interest rate is determined with reference to the Commercial Paper
Rate (the "Commercial Paper Rate Interest Determination Date"), for a Federal
Funds Rate Note or any Floating Rate Note for which the interest rate is
determined with reference to the Federal Funds Rate (the "Federal Funds Rate
Interest Determination Date"), or for a Prime Rate Note or any Floating Rate
Note for which the interest rate is determined with reference to the
 
                                       S-5
<PAGE>   6
 
Prime Rate (the "Prime Rate Interest Determination Date"), or for a CMT Rate
Note or any Floating Rate Note for which the interest rate is determined with
reference to the CMT Rate (the "CMT Rate Interest Determination Date"), will be
the second Business Day preceding the Interest Reset Date. The Interest
Determination Date pertaining to an Interest Reset Date for a LIBOR Note or any
Floating Rate Note for which the interest rate is determined with reference to
LIBOR (the "LIBOR Rate Interest Determination Date") will be the second London
Business Day immediately preceding the Interest Reset Date with respect to such
Note. The Interest Determination Date pertaining to an Interest Reset Date for a
Treasury Rate Note or any Floating Rate Note for which the interest rate is
determined with reference to the Treasury Rate (the "Treasury Rate Interest
Determination Date") will be the day of the week on which Treasury bills (as
defined below) would normally be auctioned in the week in which such Interest
Reset Date falls. Treasury bills are usually sold at auction on Monday of each
week, unless that day is a legal holiday, in which case the auction is usually
held on the following Tuesday, except that such auction may be held on the
preceding Friday. If, as the result of a legal holiday, an auction is so held on
the preceding Friday, such Friday will be the Treasury Rate Interest
Determination Date pertaining to an Interest Reset Date occurring in the next
succeeding week. If an auction date shall fall on a day which would otherwise be
an Interest Reset Date for a Treasury Rate Note, then such Interest Reset Date
shall instead be the first Business Day immediately following such auction date.
The Interest Determination Date pertaining to a Floating Rate Note the interest
rate of which is determined by reference to two or more Interest Rate Bases will
be the most recent Business Day which is at least two Business Days prior to the
applicable Interest Reset Date for such Floating Rate Note on which each
Interest Rate Basis is determinable. Each Interest Rate Basis will be determined
on such date, and the applicable interest rate will take effect on the
applicable Interest Reset Date.
 
     Unless otherwise specified in the applicable Pricing Supplement, interest
payable in respect of Floating Rate Notes shall be the accrued interest from and
including the Original Issue Date or the last date to which interest has been
paid, as the case may be, to but excluding the applicable Interest Payment Date.
 
     With respect to a Floating Rate Note, accrued interest shall be calculated
by multiplying the principal amount of such Note (or, in the case of a Floating
Rate Note that is an Indexed Principal Note, its Face Amount) by an accrued
interest factor. Such accrued interest factor will be computed by adding the
interest factors calculated for each day in the period for which accrued
interest is being calculated. Unless otherwise specified in the applicable
Pricing Supplement the interest factor (expressed as a decimal calculated to
seven decimal places without rounding) for each such day is computed by dividing
the interest rate in effect on such day by 360, in the case of LIBOR Notes,
Prime Rate Notes, Commercial Paper Rate Notes, Federal Funds Rate Notes and CD
Rate Notes or by the actual number of days in the year, in the case of CMT Rate
Notes or Treasury Rate Notes. For purposes of making the foregoing calculation,
the interest rate in effect on any Interest Reset Date will be the applicable
rate as reset on such date.
 
     Unless otherwise specified in the applicable Pricing Supplement, all
percentages resulting from any calculation of the rate of interest on a Floating
Rate Note will be rounded, if necessary, to the nearest 1/100,000 of 1%
(.0000001), with five one-millionths of a percentage point rounded upward, and
all currency amounts used in or resulting from such calculation on Floating Rate
Notes will be rounded to the nearest one-hundredth of a unit (with .005 of a
unit being rounded upward).
 
     Unless otherwise indicated in the applicable Pricing Supplement and except
as provided below, interest will be payable, in the case of Floating Rate Notes
that reset daily, weekly or monthly, on the third Wednesday of each month or on
the third Wednesday of March, June, September and December of each year, as
specified in the applicable Pricing Supplement; in the case of Floating Rate
Notes that reset quarterly, on the third Wednesday of March, June, September,
and December of each year; in the case of Floating Rate Notes that reset
semiannually, on the third Wednesday of each of two months of each year
specified in the applicable Pricing Supplement; and, in the case of Floating
Rate Notes that reset annually, on the third Wednesday of one month of each year
specified
 
                                       S-6
<PAGE>   7
 
in the applicable Pricing Supplement (each such day being an "Interest Payment
Date"). If an Interest Payment Date with respect to any Floating Rate Note would
otherwise be a day that is not a Business Day, such Interest Payment Date shall
be postponed to the next succeeding Business Day, except that, in the case of a
LIBOR Note, if such Business Day is in the next succeeding calendar month, such
Interest Payment Date shall be the immediately preceding Business Day.
 
CD RATE NOTES
 
     Each CD Rate Note will bear interest for each Interest Reset Period at the
interest rate calculated with reference to the CD Rate and the Spread or Spread
Multiplier, if any, specified in such Note and in the applicable Pricing
Supplement.
 
     Unless otherwise specified in the applicable Pricing Supplement, the "CD
Rate" for each Interest Reset Period shall be the rate on the CD Rate Interest
Determination Date for negotiable certificates of deposit having the Index
Maturity designated in the applicable Pricing Supplement as published in
H.15(519) under the heading "CDs (Secondary Market)". In the event that such
rate is not published prior to 3:00 p.m., New York City time, on the Calculation
Date pertaining to such Interest Determination Date, then the "CD Rate" for such
Interest Reset Period will be the rate on such Interest Rate Determination Date
for negotiable certificates of deposit of the Index Maturity designated in the
applicable Pricing Supplement as published in Composite Quotations under the
heading "Certificates of Deposit". If by 3:00 p.m., New York City time, on such
Calculation Date such rate is not yet published in either H.15(519) or Composite
Quotations, then the "CD Rate" for such Interest Reset Period will be calculated
by the Calculation Agent for such CD Rate Note and will be the arithmetic mean
of the secondary market offered rates as of 10:00 a.m., New York City time, on
such Interest Determination Date of three leading nonbank dealers in negotiable
U.S. dollar certificates of deposit in The City of New York selected by the
Calculation Agent for such CD Rate Note for negotiable certificates of deposit
of major United States money center banks of the highest credit standing (in the
market for negotiable certificates of deposit) with a remaining maturity closest
to the Index Maturity designated in the Pricing Supplement in a denomination of
$5,000,000; provided, however, that if the dealers selected as aforesaid by such
Calculation Agent are not quoting offered rates as mentioned in this sentence,
the "CD Rate" for such Interest Reset Period will be the same as the CD Rate for
the immediately preceding Interest Reset Period (or, if there was no such
Interest Reset Period, the Initial Interest Rate).
 
COMMERCIAL PAPER RATE NOTES
 
     Each Commercial Paper Rate Note will bear interest for each Interest Reset
Period at the interest rate calculated with reference to the Commercial Paper
Rate and the Spread or Spread Multiplier, if any, specified in such Note and in
the applicable Pricing Supplement.
 
     Unless otherwise specified in the applicable Pricing Supplement, the
"Commercial Paper Rate" for each Interest Reset Period will be determined by the
Calculation Agent for such Commercial Paper Rate Note as of the Commercial Paper
Rate Interest Determination Date and shall be the Money Market Yield (as defined
below) on such Interest Determination Date of the rate for commercial paper
having the Index Maturity specified in the applicable Pricing Supplement, as
such rate shall be published in H.15(519) under the heading "Commercial
Paper-Nonfinancial". In the event that such rate is not published prior to 3:00
p.m., New York City time, on the Calculation Date (as defined below) pertaining
to such interest Determination Date, then the "Commercial Paper Rate" for such
Interest Reset Period shall be the Money Market Yield on such Interest
Determination Date of the rate for commercial paper of the specified Index
Maturity as published in Composite Quotations under the heading "Commercial
Paper". If by 3:00 p.m., New York City time, on such Calculation Date such rate
is not yet published in either H.15(519) or Composite Quotations, then the
"Commercial Paper Rate" for such Interest Reset Period shall be the Money Market
Yield of the arithmetic mean of the offered rates, as of 11:00 a.m., New York
City time, on such Interest Determination Date of three leading dealers of
commercial paper in The City of New York selected
 
                                       S-7
<PAGE>   8
 
by the Calculation Agent for such Commercial Paper Rate Note for commercial
paper of the specified Index Maturity placed for an industrial issuer whose
bonds are rated "AA" or the equivalent by a nationally recognized rating agency;
provided, however, that if the dealers selected as aforesaid by such Calculation
Agent are not quoting offered rates as mentioned in this sentence, the
"Commercial Paper Rate" for such Interest Reset Period will be the same as the
Commercial Paper Rate for the immediately preceding Interest Reset Period (or,
if there was no such Interest Reset Period, the Initial Interest Rate).
 
     "Money Market Yield" shall be a yield calculated in accordance with the
following formula:
 
<TABLE>
<S>                   <C>            <C>
Money Market Yield =     D X 360     X 100
                      -------------
                      360 - (D X M)
</TABLE>
 
where "D" refers to the applicable per annum rate for commercial paper quoted on
a bank discount basis and expressed as a decimal, and "M" refers to the actual
number of days in the interest period for which interest is being calculated.
 
FEDERAL FUNDS RATE NOTES
 
     Each Federal Funds Rate Note will bear interest for each Interest Reset
Period at the interest rate calculated with reference to the Federal Funds Rate
and the Spread or Spread Multiplier, if any, specified in such Note and in the
applicable Pricing Supplement.
 
     Unless otherwise specified in the applicable Pricing Supplement, the
"Federal Funds Rate" for each Interest Reset Period shall be the effective rate
on the Federal Funds Rate Interest Determination Date for Federal Funds as
published in H.15(519) under the heading "Federal Funds (Effective)". In the
event that such rate is not published prior to 3:00 p.m., New York City time, on
the Calculation Date pertaining to such Interest Determination Date, the
"Federal Funds Rate" for such Interest Reset Period shall be the rate on such
Interest Determination Date as published in Composite Quotations under the
heading "Federal Funds/Effective Rate". If by 3:00 p.m., New York City time, on
such Calculation Date such rate is not yet published in either H.15(519) or
Composite Quotations, then the "Federal Funds Rate" for such Interest Reset
Period shall be the rate on such Interest Determination Date made publicly
available by the Federal Reserve Bank of New York which is equivalent to the
rate which appears in H.15(519) under the heading "Federal Funds (Effective)";
provided, however, that if such rate is not made publicly available by the
Federal Reserve Bank of New York by 3:00 p.m., New York City time, on such
Calculation Date, the "Federal Funds Rate" for such Interest Reset Period will
be the same as the Federal Funds Rate in effect for the immediately preceding
Interest Reset Period (or, if there was no such Interest Reset Period, the
Initial Interest Rate). In the case of a Federal Funds Rate Note that resets
daily, the interest rate on such Note for the period from and including a Monday
to but excluding the succeeding Monday will be reset by the Calculation Agent
for such Note on such second Monday (or, if not a Business Day, on the next
succeeding Business Day) to a rate equal to the average of the Federal Funds
Rates in effect with respect to each such day in such week.
 
LIBOR NOTES
 
     A LIBOR Note will bear interest at the interest rate (calculated with
reference to LIBOR (London interbank offered rate) and the Spread or Spread
Multiplier, if any) specified in such Note and in the applicable Pricing
Supplement.
 
     Unless otherwise indicated in the applicable Pricing Supplement, LIBOR will
be determined by the Calculation Agent in accordance with the following
provisions:
 
          (i) On each Interest Determination Date, LIBOR will be either, (a) if
     "LIBOR Reuters" is specified in the related LIBOR Note and any applicable
     Pricing Supplement, the arithmetic mean of the offered rates (unless the
     specified Designated LIBOR Page (as defined below) by its
 
                                       S-8
<PAGE>   9
 
     terms provides only for a single rate, in which case such single rate shall
     be used) for deposits in the currency designated in the related LIBOR Note
     having the maturity designated in the related LIBOR Note and any applicable
     Pricing Supplement commencing on the second London Banking Day immediately
     following the applicable Interest Determination Date that appears on the
     Designated LIBOR Page specified in the related LIBOR Note and any
     applicable Pricing Supplement as of 11:00 A.M., London time, on that
     Interest Determination Date, if at least two such offered rates appear
     (unless, as aforesaid, only a single rate is required) on such Designated
     LIBOR Page, or (b) if "LIBOR Telerate" is specified in the related LIBOR
     Note and any applicable Pricing Supplement, the rate for deposits in the
     currency designated in the related LIBOR Note having the maturity
     designated in the related LIBOR Note and any applicable Pricing Supplement
     commencing on the second London Banking Day immediately following the
     applicable Interest Determination Date that appears on the Designated LIBOR
     Page specified in the related LIBOR Note and any applicable Pricing
     Supplement as of 11:00 A.M., London time, on that Interest Determination
     Date. If fewer than two offered rates appear (unless, as aforesaid, only a
     single rate is required), or no rate appears, as applicable, LIBOR in
     respect of the related Interest Determination Date will be determined as if
     the parties had specified the rate described in clause (ii) below.
 
          (ii) On any Interest Determination Date on which fewer than two
     offered rates for the applicable maturity appear on the applicable
     Designated LIBOR Page as specified in (i) above (unless the specified
     Designated LIBOR Page by its terms provides only for a single rate), or no
     rate appears, as applicable, LIBOR will be determined on the basis of the
     rates at which deposits in the currency designated in the related LIBOR
     Note having the maturity designated in the related LIBOR Note and any
     applicable Pricing Supplement commencing on the second London Business Day
     immediately following such Interest Determination Date and in a principal
     amount that is representative for a single transaction in such market at
     such time are offered by four major banks in the London interbank market
     selected by the Calculation Agent at approximately 11:00 A.M., London time,
     on such Interest Determination Date to prime banks in the London interbank
     market. The Calculation Agent will request the principal London office of
     each of such banks to provide a quotation on its rate. If at least two such
     quotations are provided, LIBOR in respect of such Interest Determination
     Date will be the arithmetic mean (rounded to the nearest one-hundredth of a
     percent, with five one-thousandths of a percent rounded upwards) of such
     quotations. If fewer than two quotations are provided, LIBOR in respect of
     such Interest Determination Date will be the arithmetic mean (rounded to
     the nearest one-hundredth of a percent, and five one-thousandths of a
     percent rounded upwards), of the rates quoted by three major banks in New
     York City selected by the Calculation Agent at approximately 11:00 A.M.,
     New York City time, on such Interest Determination Date for loans in the
     currency designated in the related LIBOR Note to leading European banks
     having the maturity designated in the related LIBOR Note and any applicable
     Pricing Supplement commencing on the second London Banking Day immediately
     following such Interest Determination Date and in a principal amount that
     is representative for a single transaction in such market at such time;
     provided, however, that if fewer than three banks selected as aforesaid by
     the Calculation Agent are quoting as mentioned in this sentence, LIBOR will
     be LIBOR in effect on such Interest Determination Date.
 
TREASURY RATE NOTES
 
     Each Treasury Rate Note will bear interest for each Interest Reset Period
at the interest rate calculated with reference to the Treasury Rate and the
Spread or Spread Multiplier, if any, specified in such Note and in the
applicable Pricing Supplement.
 
     Unless otherwise specified in the applicable Pricing Supplement, the
"Treasury Rate" for each Interest Reset Period will be the rate for the auction
held on the Treasury Rate Interest Determination Date for such Interest Reset
Period of direct obligations of the United States ("Treasury
 
                                       S-9
<PAGE>   10
 
securities") having the Index Maturity specified in the applicable Pricing
Supplement, as such rate shall be published in H.15(519) under the heading "U.S.
Government Securities -- Treasury bills-auction average (investment)" or, in the
event that such rate is not published prior to 3:00 p.m., New York City time, on
the Calculation Date pertaining to such Interest Determination Date, the auction
average rate (expressed as a bond equivalent on the basis of a year of 365 or
366 days, as applicable, and applied on a daily basis) on such Interest
Determination Date as otherwise announced by the United States Department of the
Treasury. In the event that the results of the auction of Treasury securities
having the specified Index Maturity are not published or reported as provided
above by 3:00 p.m., New York City time, on such Calculation Date, or if no such
auction is held on such Interest Determination Date, then the "Treasury Rate"
for such Interest Reset Period shall be calculated by the Calculation Agent for
such Treasury Rate Note and shall be a yield to maturity (expressed as a bond
equivalent on the basis of a year of 365 or 366 days, as applicable, and applied
on a daily basis) of the arithmetic mean of the secondary market bid rates, as
of approximately 3:30 p.m., New York City time, on such Interest Determination
Date, of three leading primary United States government securities dealers
selected by such Calculation Agent for the issue of Treasury securities with a
remaining maturity closest to the specified Index Maturity; provided, however,
that if the dealers selected as aforesaid by such Calculation Agent are not
quoting bid rates as mentioned in this sentence, then the "Treasury Rate" for
such Interest Reset Period will be the same as the Treasury Rate for the
immediately preceding Interest Reset Period (or, if there was no such Interest
Reset Period, the Initial Interest Rate).
 
PRIME RATE NOTES
 
     Each Prime Rate Note will bear interest at the interest rate calculated
with reference to the Prime Rate and the Spread or Spread multiplier, if any
specified in such Note and in the applicable Pricing Supplement.
 
     Unless otherwise specified in the applicable Pricing Supplement, the "Prime
Rate" means, with respect to any Prime Rate Interest Determination Date, the
rate on such date as published in H.15(519) under the heading "Bank Prime Loan."
In the event that such rate is not published by 9:00 a.m., New York City time,
on the Calculation Date pertaining to such Interest Determination Date, then the
Prime Rate will be determined by the Calculation Agent and will be the
arithmetic mean of the rates of interest publicly announced by each bank that
appears on the Reuters Screen USPRIME1 Page (as defined below) as such bank's
prime rate or base lending rate as in effect for that Interest Determination
Date. "Reuters Screen USPRIME1" means the display designated as page "USPRIME1"
on the Reuters Monitor Money Rates Service (or such other page as may replace
the USPRIME1 page on that service for the purpose of displaying prime rates or
base lending rates of major United States banks). If fewer than four such rates
but more than one such rate appear on the Reuters Screen USPRIME1 Page for such
Interest Determination Date, the Prime Rate shall be determined by the
Calculation Agent and will be the arithmetic mean of the prime rates quoted on
the basis of actual number of days in the year divided by 360 as of the close of
business on such Interest Determination Date by at least two major money center
banks in New York City selected by the Calculation Agent (after consulting with
the Company). If fewer than two such rates appear on the Reuters Screen USPRIME1
Page, the Prime Rate will be determined by the Calculation Agent and will be the
arithmetic mean of the prime rates furnished in New York City by three
substitute banks or trust companies organized and doing business under the laws
of the United States, or any State thereof, in each case having total equity
capital of at least U.S. $500,000,000 and being subject to supervision or
examination by Federal or State authority, selected by the Calculation Agent
(after consulting with the Company) to provide such rate or rates; provided,
however, that if the banks selected as aforesaid are not quoting as mentioned in
this sentence, the Prime Rate will remain the Prime Rate in effect on such
Interest Determination Date.
 
                                      S-10
<PAGE>   11
 
CMT RATE NOTES
 
     Each CMT Rate Note will bear interest at the rate (calculated with
reference to the CMT Rate and the Spread and/or Spread Multiplier, if any)
specified in such CMT Rate Note and in any applicable Pricing Supplement.
 
     Unless otherwise specified in the applicable Pricing Supplement, "CMT Rate"
means, with respect to any CMT Rate Interest Determination Date, the rate
displayed on the Designated CMT Telerate Page under the caption "...Treasury
Constant Maturities...Federal Reserve Board release H.15... Mondays
approximately 3:45 P.M.," under the column for the Designated CMT Maturity Index
(as defined below) for (i) if the Designated Telerate Page is 7055, the rate on
such Interest Determination Date and (ii) if the Designated CMT Telerate Page is
7052, the week, or the month, as applicable, ended immediately preceding the
week in which the related Interest Determination Date occurs. If such rate is no
longer displayed on the relevant page, or if not displayed by 3:00 P.M., New
York City time, on the related Calculation Date, then the CMT Rate for such
Interest Determination Date will be such treasury constant maturity rate for the
Designated CMT Maturity Index as published in H15.(519). If such rate is no
longer published, or if not published by 3:00 P.M., New York City time, on the
related Calculation Date, then the CMT Rate for such Interest Determination Date
will be such treasury constant maturity rate for the designated CMT Maturity
Index (or other United States Treasury rate for the Designated CMT Maturity
Index ) for the Interest Determination Date with respect to such Interest Reset
Date as may then be published by either the Board of Governors of the Federal
Reserve System or the United States Department of the Treasury that the
Calculation Agent determines to be comparable to the rate formerly displayed on
the Designated CMT Telerate Page and published in the relevant H.15(519). If
such information is not provided by 3:00 P.M., New York City time, on the
related Calculation Date, then the CMT Rate for such Interest Determination Date
will be calculated by the Calculation Agent and will be a yield to maturity,
based on the arithmetic mean of the secondary market closing side offer prices
as of approximately 3:30 P.M., New York City time, on the Interest Determination
Date reported, according to their written records, by three leading primary
United States government securities dealers (each, a "Reference Dealer") in the
City of New York selected by the Calculation Agent (from five such Reference
Dealers selected by the Calculation Agent and eliminating the highest quotation
(or, in the event of equality, one of the highest) and the lowest quotation (or,
in the event of equality, one of the lowest)), for the most recently issued
direct noncallable fixed rate obligations of the United States ("Treasury
Notes") with an original maturity of approximately the Designated CMT Maturity
Index and a remaining term to maturity of not less than such Designated CMT
Maturity Index minus one year. If the Calculation Agent can cannot obtain three
such Treasury Note quotations, the CMT Rate for such Interest Determination Date
will be calculated by the Calculation Agent and will be a yield to maturity
based on the arithmetic mean of the secondary market offer side prices as of
approximately 3:30 P.M., New York City time, on the Interest Determination Date
of three Reference Dealers in the City of New York (from five such Reference
Dealers selected by the Calculation Agent and eliminating the highest quotation
(or, in the event of equality, one of the highest) and the lowest quotation (or,
in the event of equality, one of the lowest)), for such Treasury Notes with an
original maturity of the number of years that is the next highest to the
Designated CMT Maturity Index and a remaining term to maturity closest to the
Designated CMT Maturity Index in an amount of at least U.S. $100 million. If
three or four (and not five) of such Reference Dealers are quoting as described
above, then the CMT Rate will be based on the arithmetic mean of the offer
prices obtained and neither the highest nor the lowest of such quotes will be
eliminated; provided however, that if fewer than three Reference Dealers
selected by the Calculation Agent are quoting as described herein, the CMT Rate
will be the CMT Rate in effect on such Interest Determination Date. If two
Treasury Notes with an original maturity as described in the third preceding
sentence have remaining terms to maturity equally close to the Designated CMT
Maturity Index, the quotes for the CMT Rate Note with the shorter remaining term
to maturity will be used.
 
                                      S-11
<PAGE>   12
 
     "Designated CMT Telerate Page" means the display on the Dow Jones Telerate
Service designated in the applicable Pricing Supplement for the purpose of
displaying Treasury Constant Maturities as reported in H15(519) (or any other
page as may replace such page on that service for the purpose of displaying
Treasury Constant Maturities as reported in H.15(519)). If no such page is
specified in the applicable Pricing Supplement, the Designated CMT Telerate Page
shall be 7052 for the most recent week.
 
     "Designated CMT Maturity Index" means the original period to maturity of
the U.S. Treasury securities (either 1, 2, 3, 5, 7, 10, 20 or 30 years)
specified in the applicable Pricing Supplement with respect to which the CMT
Rate will be calculated. If no such maturity is specified in the applicable
Pricing Supplement, the Designated CMT Maturity Index shall be 2 years.
 
SUBSEQUENT INTEREST PERIODS
 
     The Pricing Supplement relating to each Note will indicate whether the
Company has the option to reset the interest rate (in the case of a Fixed Rate
Note) with respect to such Note or the Spread or Spread Multiplier (in the case
of a Floating Rate Note) with respect to such Note and, if so, the date or dates
on which such interest rate or such Spread or Spread Multiplier, as the case may
be, may be reset (each an "Optional Reset Date").
 
     The Company shall notify the Trustee for a Note whether or not it intends
to exercise such option with respect to such Note at least 45 but not more than
60 calendar days prior to an Optional Reset Date for such Note. Not later than
40 calendar days prior to such Optional Reset Date, the Trustee for such Note
will mail to the Holder of such Note a notice (the "Reset Notice"), first class,
postage prepaid, indicating whether the Company has elected to reset the
interest rate (in the case of a Fixed Rate Note) or the Spread or Spread
Multiplier (in the case of a Floating Rate Note) and if so, (i) such new
interest rate or such new Spread or Spread Multiplier, as the case may be; and
(ii) the provisions, if any, for redemption during the period from such Optional
Reset Date to the next Optional Reset Date or, if there is no such next Optional
Reset Date, to the Stated Maturity of such Note (each such period a "Subsequent
Interest Period"), including the date or dates on which or the period or periods
during which and the price or prices at which such redemption may occur during
such Subsequent Interest Period.
 
     Notwithstanding the foregoing, not later than 20 calendar days prior to an
Optional Reset Date for a Note, the Company may, at its option, revoke the
interest rate (in the case of a Fixed Rate Note) or the Spread or Spread
Multiplier (in the case of a Floating Rate Note) provided for in the Reset
Notice with respect to such Optional Reset Date and establish a higher interest
rate (in the case of a Fixed Rate Note) or a higher Spread or Spread Multiplier
(in the case of a Floating Rate Note) for the Subsequent Interest Period
commencing on such Optional Reset Date by causing the Trustee for such Note to
mail notice of such higher interest rate or higher Spread or Spread Multiplier,
as the case may be, first class, postage prepaid, to the Holder of such Note.
Such notice shall be irrevocable. All Notes with respect to which the interest
rate or Spread or Spread Multiplier is reset on an Optional Reset Date will bear
such higher interest rate (in the case of Fixed Rate Notes) or higher Spread or
Spread Multiplier (in the case of Floating Rate Notes), whether or not tendered
for repayment.
 
     The Holder of a Note will have the option to elect repayment of such Note
by the Company on each Optional Reset Date at a price equal to the principal
amount thereof, plus interest accrued to such Optional Reset Date. In order for
a Note to be repaid on an Optional Reset Date, the Holder thereof must follow
the procedures set forth below under "Optional Redemption, Repayment and
Repurchase" for optional repayment, except that the period for delivery of such
Note or notification to the Trustee for such Note shall be at least 25 but not
more than 35 calendar days prior to such Optional Reset Date, and except that a
Holder who has tendered a Note for repayment pursuant to a Reset Notice may, by
written notice to the Trustee for such Note, revoke any such tender for
repayment until the close of business on the tenth day prior to such Optional
Reset Date.
 
                                      S-12
<PAGE>   13
 
AMORTIZING NOTES
 
     The Company may from time to time offer Notes ("Amortizing Notes") on which
a portion or all the principal amount is payable prior to Stated Maturity in
accordance with a schedule, by application of a formula, or by reference to an
Index (as defined below). Further information concerning additional terms and
conditions of any Amortizing Notes, including terms for repayment thereof, will
be set forth in the applicable Pricing Supplement.
 
INDEXED NOTES
 
     The Company may from time to time offer Notes ("Indexed Notes") on which
certain or all interest payments (in the case of an "Indexed Rate Note"), and/or
the principal amount payable at Stated Maturity or earlier redemption or
retirement (in the case of an "Indexed Principal Note"), is determined by
reference to the principal amount of such Notes (or, in the case of an Indexed
Principal Note, to the amount designated in the applicable Pricing Supplement as
the "Face Amount" of such Indexed Note) and by reference to prices, changes in
prices, or differences between prices, of securities, currencies, intangibles,
goods, articles or commodities or by such other objective price, economic or
other measures as are described in the applicable Pricing Supplement (the
"Index"). A description of the Index used in any determination of an interest or
principal payment, and the method or formula by which interest or principal
payments will be determined by reference to such Index, will be set forth in the
applicable Pricing Supplement.
 
     In the case of a Fixed Rate Note, Floating Rate Note or Indexed Rate Note
that is also an Indexed Principal Note, the amount of any interest payment will
be determined by reference to the Face Amount of such Indexed Note unless
specified otherwise in the applicable Pricing Supplement. In the case of an
Indexed Principal Note, the principal amount payable at Stated Maturity or any
earlier redemption or repayment of the Indexed Note may be different from the
Face Amount.
 
     If the determination of the Index on which any interest payment or the
principal amount of an Indexed Note is calculated or announced by a third party,
which may be Salomon Brothers Inc or Morgan Stanley & Co. Incorporated, and such
third party either suspends the calculation or announcement of such Index or
changes the basis upon which such Index is calculated (other than changes
consistent with policies in effect at the time such Indexed Note was issued and
permitted changes described in the applicable Pricing Supplement), then such
Index shall be calculated for purposes of such Indexed Note by another third
party selected by the Company, which may be Salomon Brothers Inc or Morgan
Stanley & Co. Incorporated, subject to the same conditions and controls as
applied to the original third party. If for any reason such Index cannot be
calculated on the same basis and subject to the same conditions and controls as
applied to the original third party, then the indexed interest payments, if any,
or any indexed principal amount of such Indexed Note shall be calculated in the
manner set forth in the applicable Pricing Supplement. Any determination of such
third party shall in the absence of manifest error be binding on all parties.
 
EXTENSION OF MATURITY
 
     The Pricing Supplement relating to each Note will indicate whether the
Company has the option to extend the Stated Maturity of such Note for one or
more periods of whole years from one to five (each an "Extension Period") up to
but not beyond the date (the "Final Maturity") set forth in such Pricing
Supplement.
 
     The Company may exercise such option with respect to a Note by notifying
the Trustee for such Note at least 45 but not more than 60 calendar days prior
to the old Stated Maturity of such Note. Not later than 40 calendar days prior
to the old Stated Maturity of such Note, the Trustee for such Note will mail to
the Holder of such Note a notice (the "Extension Notice"), first class, postage
prepaid. The Extension Notice will set forth (i) the election of the Company to
extend the Stated Maturity of such Note; (ii) the new Stated Maturity; (iii) in
the case of a Fixed Rate Note, the interest rate applicable to the Extension
Period or, in the case of a Floating Rate Note, the Spread or
 
                                      S-13
<PAGE>   14
 
Spread Multiplier applicable to the Extension Period; and (iv) the provisions,
if any, for redemption during the Extension Period, including the date or dates
on which or the period or periods during which and the price or prices at which
such redemption may occur during the Extension Period. Upon the mailing by such
Trustee of an Extension Notice to the Holder of a Note, the Stated Maturity of
such Note shall be extended automatically, and, except as modified by the
Extension Notice and as described in the next paragraph, such Note will have the
same terms as prior to the mailing of such Extension Notice.
 
     Notwithstanding the foregoing, not later than 20 calendar days prior to the
old Stated Maturity of such Note, the Company may, at its option, revoke the
interest rate (in the case of a Fixed Rate Note) or the Spread or Spread
Multiplier (in the case of a Floating Rate Note) provided for in the Extension
Notice for such Note and establish a higher interest rate (in the case of a
Fixed Rate Note) or a higher Spread or Spread Multiplier (in the case of a
Floating Rate Note) for the Extension Period, by causing the Trustee for such
Note to mail notice of such higher interest rate or higher Spread or Spread
Multiplier, as the case may be, first class, postage prepaid, to the Holder of
such Note. Such notice shall be irrevocable. All Notes with respect to which the
Stated Maturity is extended will bear such higher interest rate (in the case of
Fixed Rate Notes) or higher Spread or Spread Multiplier (in the case of Floating
Rate Notes) for the Extension Period, whether or not tendered for repayment.
 
     If the Company extends the Stated Maturity of a Note, the Holder of such
Note will have the option to elect repayment of such Note by the Company on the
old Stated Maturity at a price equal to the principal amount thereof, plus
interest accrued to such date. In order for a Note to be repaid on the old
Stated Maturity once the Company has extended the Stated Maturity thereof, the
Holder thereof must follow the procedures set forth below under "Optional
Redemption, Repayment and Repurchase" for optional repayment, except that the
period for delivery of such Note or notification to the Trustee for such Note
shall be at least 25 but not more than 35 days prior to the old Stated Maturity
and except that a Holder who has tendered a Note for repayment pursuant to an
Extension Notice may, by written notice to the Trustee for such Note, revoke any
such tender for repayment until the close of business on the tenth day before
the old Stated Maturity.
 
OPTIONAL REDEMPTION, REPAYMENT AND REPURCHASE
 
     The Pricing Supplement relating to each Note will indicate either that such
Note cannot be redeemed prior to its Stated Maturity or that such Note will be
redeemable at the option of the Company, in whole or in part, and the date or
dates (each an "Optional Redemption Date") on which such Note may be redeemed
and the price (the "Redemption Price") at which (together with accrued interest
to such Optional Redemption Date) such Note may be redeemed on each such
Optional Redemption Date. The Company may exercise such option with respect to a
Note by notifying the Trustee for such Note at least 45 days prior to any
Optional Redemption Date. Unless otherwise specified in the applicable Pricing
Supplement, at least 30 but not more than 60 days prior to the date of
redemption, such Trustee shall mail notice of such redemption, first class,
postage prepaid, to the Holder of such Note. In the event of redemption of a
Note in part only, a new Note or Notes for the unredeemed portion thereof shall
be issued to the Holder thereof upon the cancellation thereof. The Notes will
not be subject to any sinking fund.
 
     The Pricing Supplement relating to each Note will also indicate whether the
Holder of such Note will have the option to elect repayment of such Note by the
Company prior to its Stated Maturity, and, if so, such Pricing Supplement will
specify the date or dates on which such Note may be repaid (each an "Optional
Repayment Date") and the price (the "Optional Repayment Price") at which,
together with accrued interest to such Optional Repayment Date, such Note may be
repaid on each such Optional Repayment Date.
 
     In order for a Note to be repaid, the Trustee for such Note must receive,
at least 30 but not more than 45 days prior to an Optional Repayment Date (i)
such Note with the form entitled "Option to
 
                                      S-14
<PAGE>   15
 
Elect Repayment" on the reverse thereof duly completed, or (ii) a telegram,
telex, facsimile transmission or letter from a member of a national securities
exchange or the National Association of Securities Dealers, Inc. or a commercial
bank or trust company in the United States setting forth the name of the Holder
of such Note, the principal amount of such Note to be repaid, the certificate
number or a description of the tenor and terms of such Note, a statement that
the option to elect repayment is being exercised thereby and a guarantee that
the Note to be repaid with the form entitled "Option to Elect Repayment" on the
reverse of the Note duly completed will be received by such Trustee not later
than five Business Days after the date of such telegram, telex, facsimile
transmission or letter. If the procedure described in clause (ii) of the
preceding sentence is followed, then such Note and form duly completed must be
received by such Trustee by such fifth Business Day. Any tender of a Note by the
Holder for repayment (except pursuant to a Reset Notice or an Extension Notice)
shall be irrevocable. The repayment option may be exercised by the Holder of a
Note for less than the entire principal amount of such Note provided that the
principal amount of such Note remaining outstanding after repayment is an
authorized denomination. Upon such partial repayment, such Note shall be
cancelled and a new Note or Notes for the remaining principal amount thereof
shall be issued in the name of the Holder of such repaid Note.
 
     If a Note is represented by a Global Security, the Depositary's nominee
will be the Holder of such Note and therefore will be the only entity that can
exercise a right to repayment. In order to ensure that the Depositary's nominee
will timely exercise a right to repayment with respect to a particular Note, the
beneficial owner of such Note must instruct the broker or other direct or
indirect participant through which it holds an interest in such Note to notify
the Depositary of its desire to exercise a right to repayment. Different firms
have different cut-off times for accepting instructions from their customers
and, accordingly, each beneficial owner should consult the broker or other
direct or indirect participant through which it holds an interest in a Note in
order to ascertain the cut-off time by which such an instruction must be given
in order for timely notice to be delivered to the Depositary.
 
     Notwithstanding anything in this Prospectus Supplement to the contrary, if
a Note is an Original Issue Discount Note (other than an Indexed Note), the
amount payable on such Note in the event of redemption or repayment prior to its
Stated Maturity shall be the Amortized Face Amount of such Note as of the date
of redemption or the date of repayment, as the case may be. The "Amortized Face
Amount" of an Original Issue Discount Note shall be the amount equal to (i) the
Issue Price set forth in the applicable Pricing Supplement plus (ii) that
portion of the difference between the Issue Price and the principal amount of
such Note that has accrued at the Yield to Maturity set forth in the Pricing
Supplement (computed in accordance with generally accepted United States bond
yield computation principles) by such date of redemption or repayment, but in no
event shall the Amortized Face Amount of an Original Issue Discount Note exceed
its principal amount.
 
     The Company may at any time purchase Notes at any price in the open market
or otherwise. Notes so purchased by the Company may, at the discretion of the
Company, be held or resold or surrendered to the Trustee for cancellation.
 
BOOK-ENTRY SYSTEM
 
     Upon issuance, and subject to the rules of DTC, all Fixed Rate Book-Entry
Notes having the same Original Issue Date and otherwise identical terms will be
represented by a single Global Security. Each Global Security representing
Book-Entry Notes will be deposited with, or on behalf of, DTC, and registered in
the name of a nominee of DTC. Book-Entry Notes will not be exchangeable for
certificated Notes and, except under the circumstances described in the
Prospectus under "Description of Debt Securities-Book-Entry Registration", will
not otherwise be issuable as certificated Notes.
 
     A further description of DTC's procedures with respect to Global Securities
representing Book-Entry Notes is set forth in the Prospectus under "Description
of Debt Securities -- Book-Entry
 
                                      S-15
<PAGE>   16
 
Registration". DTC has confirmed to the Company, the Agents and the Trustee that
it intends to follow such procedures.
 
                        FEDERAL INCOME TAX CONSEQUENCES
 
     The following summary accurately describes certain United States federal
income tax consequences of the ownership and disposition of Notes as of the date
hereof, based on the opinion of Neal, Gerber & Eisenberg, counsel to the
Company. Except where noted, it deals only with Notes held as capital assets and
does not deal with special situations, such as those of dealers in securities,
financial institutions or life insurance companies. Furthermore, the discussion
below is based upon the provisions of the Internal Revenue Code of 1986, as
amended (the "Code"), and regulations, rulings and judicial decisions thereunder
as of the date hereof, and such authorities may be repealed, revoked or modified
so as to result in federal income tax consequences different from those
discussed below. Persons considering the purchase, ownership or disposition of
Notes should consult their own tax advisors concerning the federal income tax
consequences in light of their particular situations as well as any consequences
arising under the laws of any other taxing jurisdiction.
 
     As used herein, "United States Holder" means a beneficial owner of a Note
that is a citizen or resident of the United States, a corporation, partnership
or other entity created or organized in or under the laws of the United States
or any political subdivision thereof, an estate the income of which is subject
to United States federal income taxation regardless of its source, a trust for
which a court within the United States is able to exercise primary supervision
over its administration and for which one or more U.S. persons has the authority
to control all substantial decisions, or certain former citizens of the United
States whose income and gain on the Notes will be taxable in the United States.
A "United States Alien Holder" is a holder that is not a United States Holder.
 
PAYMENTS OF INTEREST
 
     Except as set forth below, interest on a Note will generally be taxable to
a United States Holder as ordinary income from domestic sources at the time it
is paid or accrued in accordance with the United States Holder's method of
accounting for tax purposes.
 
ORIGINAL ISSUE DISCOUNT
 
     The following is a summary of the principal United States federal income
tax consequences of the ownership of Discounted Notes (as defined below) by
United States Holders. If the Company issues Discounted Notes that qualify as
"applicable high-yield discount obligations" under the Code, the rules
applicable to such Notes will be set forth in the relevant Pricing Supplement.
This summary is based on final Treasury regulations (the "OID Regulations") that
were issued in 1994.
 
     A Note may be issued for an amount that is less than its "stated redemption
price at maturity" (the sum of all payments to be made on the Note other than
"qualified stated interest"). The difference between the stated redemption price
at maturity of the Note and its "issue price", if such difference is at least
0.25 percent of the stated redemption price at maturity multiplied by the number
of complete years to maturity (or, in the case of an Amortizing Note, the
weighted average maturity of the Note as determined under the OID Regulations),
will be OID. (Notes issued with OID are referred to as "Discounted Notes".) The
"issue price" of each Note will be the first price to the public (not including
bond houses, brokers or similar persons or organizations acting in the capacity
of underwriters or wholesalers) at which a substantial amount of the particular
offering is sold.
 
     If the excess of a Note's stated redemption price at maturity over its
issue price is less than .25 percent of the Note's stated redemption price at
maturity multiplied by the number of complete years to its maturity (the "de
minimis amount"), then such excess, if any, constitutes "de minimis original
issue discount" and the Note is not a Discounted Note. Unless the election
described below under
 
                                      S-16
<PAGE>   17
 
"Election to Treat All Interest as OID" is made, a United States Holder of a
Note with de minimis original issue discount must include such de minimis
original issue discount in income as stated principal payments on the Notes are
made. The includible amount with respect to each such payment will equal the
product of the total amount of the Note's de minimis original issue discount and
a fraction, the numerator of which is the amount of the principal payment made
and the denominator of which is the stated principal amount of the Note.
 
     "Qualified stated interest" is stated interest that is unconditionally
payable in cash or in property (other than debt instruments of the issuer) at
least annually and with respect to a Fixed Rate Note, at a single fixed rate.
Interest is payable at a single fixed rate only if the rate appropriately takes
into account the length of the interval between payments. The OID Regulations
provide that, in the case of a variable rate debt instrument, qualified stated
interest also includes stated interest that is unconditionally payable in cash
or property (other than debt instruments of the issuer) at least annually at (i)
one or more "qualified floating rates", (ii) a single fixed rate and one or more
qualified floating rates, (iii) a single "objective rate", or (iv) a single
fixed rate and a single objective rate that is a "qualified inverse floating
rate". Unless the applicable Pricing Supplement so indicates, interest with
respect to a Fixed Rate Note or Floating Rate Note will constitute qualified
stated interest.
 
     Certain of the Notes may be redeemed prior to maturity, as indicated in the
applicable Pricing Supplement. The OID Regulations provide that any Note that
may be redeemed prior to its Stated Maturity Date at the option of the issuer
shall be treated from the time of issuance as having a maturity date for federal
income tax purposes on such redemption date if such redemption would result in a
lower yield to maturity. Notice will be given in the applicable Pricing
Supplement when the Company determines that a particular Note will be deemed to
have a maturity date for federal income tax purposes prior to its Stated
Maturity Date.
 
     In certain cases, Notes that bear stated interest and are issued at par may
be deemed to bear OID for federal income tax purposes, with the result that the
inclusion of interest in income for federal income tax purposes may vary from
the actual cash payments of interest made on such Notes, generally accelerating
income for cash method taxpayers. Under the OID Regulations, generally a Note
may be a Discounted Note where a Floating Rate Note provides for a maximum
interest rate or a minimum interest rate that is very likely to cause the
interest rate in one or more accrual periods, known as of the issue date, to be
significantly less, in the case of a maximum rate, or more, in the case of a
minimum rate, than the overall expected return on the Note or if there are
restrictions on changes in interest rates that cause the yield on the Note to be
significantly more or less than the yield without such restrictions. Notice will
be given in the applicable Pricing Supplement when the Company determines that a
particular Note will be a Discounted Note. Unless an applicable Pricing
Supplement so indicates, Floating Rate Notes will not be Discounted Notes.
 
     United States Holders of Discounted Notes with a maturity upon issuance of
more than one year must, in general, include OID in income in advance of the
receipt of some or all of the related cash payments. The amount of OID
includible in income by the initial United States Holder of a Discounted Note is
the sum of the "daily portions" of OID with respect to the Note for each day
during the taxable year or portion of the taxable year in which such United
States Holder held such Note ("accrued OID"). The daily portion is determined by
allocating to each day in any "accrual period" a pro rata portion of the OID
allocable to that accrual period. The "accrual period" for a Discounted Note may
be of any length and may vary in length over the term of a Note, provided that
each accrual period is no longer than one year and each scheduled payment of
principal or interest occurs on the first day or the last day of an accrual
period. In general, the computation of OID is simplest if accrual periods
correspond to the intervals between payment dates provided by the terms of a
Note. The Company will specify the accrual period it intends to use in the
applicable Pricing Supplement although the Holder is not bound by the Company's
choice of accrual period. The amount of OID allocable to any accrual period is
an amount equal to the excess, if any, of (a) the product of the Note's adjusted
issue price at the beginning of such accrual period and its
 
                                      S-17
<PAGE>   18
 
yield to maturity (determined on the basis of compounding at the close of each
accrual period and properly adjusted for the length of the accrual period) over
(b) the sum of any qualified stated interest allocable to the accrual period. In
the case of a Discounted Note that is a Floating Rate Note, both the yield to
maturity and the qualified stated interest will generally be determined for
these purposes as though the Note will bear interest in all periods at a fixed
rate generally equal to the rate that would be applicable to interest payments
on the Note on its date of issue or, in the case of certain Floating Rate Notes,
the rate that reflects the yield that is reasonably expected for the Note.
(Additional rules may apply if interest on a Floating Rate Note is based on more
than one interest index.) In determining OID allocable to an accrual period, if
an interval between payments of qualified stated interest contains more than one
accrual period the amount of qualified stated interest payable at the end of the
interval is allocated on a pro rata basis to each accrual period in the interval
and the adjusted issue price must be increased by the amount of any qualified
stated interest that has accrued prior to the beginning of the accrual period
but is not payable until a later date. OID allocable to a final accrual period
is the difference between the amount payable at maturity (other than a payment
of qualified stated interest) and the adjusted issue price at the beginning of
the final accrual period. If all accrual periods are of equal length, except for
an initial short accrual period, the amount of OID allocable to the initial
short accrual period may be computed under any reasonable method. In general,
the "adjusted issue price" of a Note at the beginning of any accrual period is
equal to its issue price increased by the accrued OID for each prior accrual
period determined without regard to the amortization of any acquisition premium
or amortizable bond premium (as described below) and reduced by any prior
payments with respect to such Note that were not qualified stated interest.
Under these rules, a United States Holder will have to include in income
increasingly greater amounts of OID in successive accrual periods. The Company
is required to report to the Internal Revenue Service ("IRS") the amount of OID
accrued on Notes held of record by persons other than corporations and other
exempt holders.
 
SHORT-TERM NOTES
 
     In the case of Notes having a term of one year or less ("Short-Term
Notes"), under the OID Regulations, payments of stated interest are not treated
as qualified stated interest. Accordingly, all payments on Short-Term Notes
(including all stated interest) will be included in the stated redemption price
at maturity and, thus, United States Holders will generally be taxed on the
"discount" in lieu of stated interest. The discount will be equal to the excess
of the stated redemption price at maturity over the issue price of the
Short-Term Note, unless the United States Holder elects to compute this discount
using tax basis instead of issue price. In general, an individual and certain
other cash method United States Holders of Short-Term Notes are not required to
include accrued discount in their income currently unless they elect to do so.
United States Holders who report income for federal income tax purposes on the
accrual method and certain other United States Holders are required to accrue
discount on such Short-Term Notes (as ordinary income) on a straight-line basis,
unless an election is made to accrue the discount according to a constant yield
method based on daily compounding. In the case of a United States Holder who is
not required, and does not elect, to include discount in income currently, any
gain realized on the sale, exchange or retirement of the Short-Term Note will be
ordinary income to the extent of the discount accrued through the date of sale,
exchange or retirement. In addition, United States Holders who do not elect to
currently include accrued discount in income may be required to defer deductions
for a portion of the United States Holder's interest expense with respect to any
indebtedness incurred or continued to purchase or carry such Notes.
 
     Any United States Holder of a Short-Term Note (whether a cash or accrual
basis taxpayer) can elect to accrue the "acquisition discount", if any, with
respect to the Note on a current basis. Acquisition discount is the excess of
the stated redemption price at maturity of the Short-Term Note over the United
States Holder's purchase price therefor. Acquisition discount will be treated as
accruing ratably or, at the election of the United States Holder, under a
constant yield method based
 
                                      S-18
<PAGE>   19
 
on daily compounding. If the election to accrue acquisition discount is made,
the original issue discount rules will not apply with respect to the Short-Term
Note.
 
MARKET DISCOUNT
 
     If a United States Holder purchases a Note other than a Short-Term Note for
an amount that is less than its "revised issue price" (defined as the sum of the
issue price of the Note and the aggregate amount of the OID includible, if any,
without regard to the rules for acquisition premium discussed below, in the
gross income of all previous holders of the Note), the amount of the difference
will be treated as "market discount" for federal income tax purposes, unless
such difference is less than a specified de minimis amount. Under the market
discount rules, a United States Holder will be required to treat any principal
payment on, or any gain on the sale, exchange, retirement or other disposition
of, a Note as ordinary income to the extent of the market discount which has not
previously been included in income and is treated as having accrued on such Note
at the time of such payment or disposition. In addition, the United States
Holder may be required to defer, until the maturity of the Note or its earlier
disposition in a taxable transaction, the deduction of all or a portion of the
interest expense on any indebtedness incurred or continued to purchase or carry
such Note.
 
     Any market discount will be considered to accrue ratably during the period
from the date of acquisition to the maturity date of the Note, unless the United
States Holder elects to accrue on a constant yield method. A United States
Holder of a Note may elect to include market discount in income currently as it
accrues (on either a ratable or constant yield basis), in which case the rule
described above regarding deferral of interest deductions will not apply. This
election to include market discount in income currently, once made, applies to
all market discount obligations acquired on or after the first taxable year to
which the election applies, and may not be revoked without the consent of the
IRS.
 
ACQUISITION PREMIUM; AMORTIZABLE BOND PREMIUM
 
     A United States Holder who purchases a Note for an amount that is greater
than its adjusted issue price but equal to or less than the sum of all amounts
payable on the Note after the purchase date other than payments of qualified
stated interest will be considered to have purchased such Note at an
"acquisition premium." Under the acquisition premium rules the amount of OID
which such United States Holder must include in its gross income with respect to
such Note for any taxable year will be reduced by the portion of such
acquisition premium properly allocable to such year.
 
     A United States Holder who purchases a Note for an amount in excess of the
sum of all amounts payable on the Note after the purchase date other than
qualified stated interest will be considered to have purchased the Note at a
"premium" and will not be required to include any OID in income. A United States
Holder generally may elect to amortize the premium over the remaining term of
the Note on a constant yield method. The amount amortized in any year will be
treated as a reduction of the United States Holder's interest income for the
Note. Bond premium on a Note held by a United States Holder that does not make
such an election will decrease the gain or increase the loss otherwise
recognized on disposition of the Note. The election to amortize premium on
constant yield method, once made, applies to all debt obligations held or
subsequently acquired by the electing United States Holder on or after the first
day of the first taxable year to which the election applies and may not be
revoked without the consent of the IRS.
 
ELECTION TO TREAT ALL INTEREST AS OID
 
     Under the OID Regulations, an accrual basis United States Holder may elect
to treat all interest on any Note as OID and calculate the amount includible in
gross income under the constant yield method described above. For the purposes
of this election, interest includes stated interest, acquisition discount, OID,
de minimis OID, market discount, de minimis market discount and
 
                                      S-19
<PAGE>   20
 
unstated interest, as adjusted by any amortizable bond premium or acquisition
premium. If a United States Holder makes this election for a Note with market
discount or amortizable bond premium, the election is treated as an election
under the market discount or amortizable bond premium provisions, described
above, and the electing United States Holder will be required to amortize bond
premium or include market discount in income currently for all of the United
States Holder's other debt instruments with market discount or amortizable bond
premium. The election is to be made for the taxable year in which the United
States Holder acquired the Note, and may not be revoked without the consent of
the IRS. United States Holders should consult with their own tax advisors when
considering the advisability of making this election.
 
SALE, EXCHANGE AND RETIREMENT OF NOTES
 
     A United States Holder's tax basis in a Note will, in general, be the
United States Holder's cost therefor, increased by OID, market discount or any
discount with respect to a Short-Term Note previously included in income by the
United States Holder and reduced by any amortized premium and any cash payments
on the Note other than qualified stated interest. Upon the sale, exchange or
retirement of a Note, a United States Holder will recognize gain or loss equal
to the difference between the amount realized upon the sale, exchange or
retirement and the adjusted tax basis of the Note. Except to the extent
attributable to accrued qualified stated interest and as described above under
"-- Short-Term Notes" and "-- Market Discount", gain or loss recognized on the
sale, exchange or retirement of a Note will be capital gain or loss. Capital
gain or loss recognized on the sale, exchange or retirement of a Note held for
more than one year will generally be subject to federal income tax at rates
preferential to those applicable to ordinary income. The rate applicable to net
capital gains realized in respect of a Note will depend (among other factors) on
the date on which the United States Holder acquired the Note and the length of
the United States Holder's holding period in the Note.
 
INDEXED NOTES
 
     The United States federal income tax treatment of an Indexed Note will
depend on numerous factors, including the specific index or indices used to
determine indexed payments on the Note and the amount and timing of any
non-contingent payments of principal and interest. The applicable Pricing
Supplement will contain a discussion of the special United States federal income
tax rules applicable to Indexed Notes.
 
UNITED STATES ALIEN HOLDERS
 
     For purposes of this discussion, a "United States Alien Holder" is any
holder that is not a United States Holder.
 
     Under present United States federal income tax law and subject to the
discussion of backup withholding below:
 
          (i) payments of interest (including accruals of OID) by the Company or
     any of its paying agents to any holder of a Note who or which is a United
     States Alien Holder will not be subject to United States federal
     withholding tax if (a) the beneficial owner of the Note does not actually
     or constructively own 10% or more of the capital or profit interests in the
     Company within the meaning of Code section 871(h)(3), (b) the beneficial
     owner of the Note is not a controlled foreign corporation related to the
     Company through stock ownership within the meaning of Code section
     871(c)(3)(C), (c) the interest does not constitute contingent interest
     within the meaning of Code section 871(h)(4), and (d) either (A) the
     beneficial owner of the Note certifies to the Company or its agent (on a
     Form W-8, Certificate of Foreign Status, or a substantially similar
     substitute form), under penalties of perjury, that it is not a United
     States Holder and provides its name and address or (B) a securities
     clearing organization, bank or other financial institution that holds
     customers' securities in the ordinary course of its trade or
 
                                      S-20
<PAGE>   21
 
     business (a "financial institution") and holds the Note provides to the
     Company or its agent a statement, under penalties of perjury, that such
     certification has been received by it or a financial institution between it
     and the beneficial owner from the beneficial owner (and furnishes the payor
     with a copy thereof); and
 
          (ii) a United States Alien Holder of a Note will not be subject to
     United States federal withholding tax on any capital gain realized on the
     sale, exchange, retirement, or other disposition of a Note.
 
     If a United States Alien Holder is engaged in a trade or business in the
United States and interest (including OID) on the Note is effectively connected
with the conduct of such trade or business, the United States Alien Holder,
although exempt from the withholding tax discussed in the preceding paragraphs,
is subject to United States federal income tax on such interest (including OID)
in the same manner as if it were a United States Holder. In lieu of the
certificate described above, such Holder must provide a properly executed Form
4224 in order to claim an exemption from withholding tax. In addition, if such
Holder is a foreign corporation, it may be subject to a branch profits tax equal
to 30% (or such lower rate as may be specified by an applicable treaty) or its
effectively connected earnings and profits for the taxable year, subject to
adjustments.
 
     Recently proposed Treasury regulations (the "Proposed Regulations") would
provide alternative methods for satisfying the certification requirement
described in clause (i)(d) above. The Proposed Regulations also would require,
in the case of Notes held by certain foreign partnerships, that (x) the
certification described in clause (i)(d) above be provided by the partners
rather than by the foreign partnership and (y) the partnership provide certain
information, including a United States taxpayer identification number. A
look-through rule would apply in the case of certain tiered partnerships. The
Proposed Regulations are proposed to be effective for payments made after
December 31, 1997. There can be no assurance that the Proposed Regulations will
be adopted or as to the provisions that they will include if and when adopted in
temporary or final form.
 
BACKUP WITHHOLDING AND INFORMATION REPORTING
 
     In general, information reporting requirements will apply to certain
payments of principal, interest, OID and premium paid on Notes and to the
proceeds of sale of a Note made to United States Holders other than certain
exempt recipients (such as corporations). A 31 percent backup withholding tax
will apply to such payments if the United States Holder fails to provide a
taxpayer identification number or certification of foreign or other exempt
status or fails to report in full dividend and interest income. Such
certification may be made on an Internal Revenue Service Form W-9 or a
substantially similar form.
 
     No information reporting or backup withholding will be required with
respect to payments made by the Company or any paying agent to United States
Alien Holders if a statement described in (i)(d) under "United States Alien
Holders" has been received and the payor does not have actual knowledge that the
beneficial owner is a United States person.
 
     In addition, backup withholding and information reporting will not apply if
payments of the principal, interest, OID or premium on a Note is paid or
collected by a foreign office of a custodian, nominee or other foreign agent on
behalf of the beneficial owner of such Note, or if a foreign office of a broker
(as defined in applicable Treasury regulations) pays the proceeds of the sale of
a Note to the owner thereof. If, however, such nominee, custodian, agent or
broker is, for United States federal income tax purposes, a U.S. person, a
controlled foreign corporation or a foreign person that derives 50% or more of
its gross income for certain periods from the conduct of a trade or business in
the United States, such payments will not be subject to backup withholding but
will be subject to information reporting, unless (1) such custodian, nominee,
agent or broker has documentary evidence in its records that the beneficial
owner is not a U.S. person and certain other conditions are met or (2) the
beneficial owner otherwise establishes an exemption. Temporary Treasury
regulations provide that the Treasury is considering whether backup withholding
will apply
 
                                      S-21
<PAGE>   22
 
with respect to such payments of principal, interest or the proceeds of a sale
that are not subject to backup withholding under the current regulations. Under
proposed Treasury regulations not currently in effect backup withholding will
not apply to such payments absent actual knowledge that the payee is a U.S.
person.
 
     Payments of principal, interest, OID and premium on a Note paid to the
beneficial owner of a Note by a United States office of a custodian, nominee or
agent, or the payment by the United States office of a broker of the proceeds of
sale of a Note, will be subject to both backup withholding and information
reporting unless the beneficial owner provides a statement described in (i)(d)
above and the payor does not have actual knowledge that the beneficial owner is
a United States person or otherwise establishes an exemption.
 
     Any amounts withheld under the backup withholding rules will be allowed as
a refund or a credit against such holder's United States federal income tax
liability provided the required information is furnished to the IRS.
 
                              PLAN OF DISTRIBUTION
 
     The Notes are being offered on a continuous basis by the Company through
the Agents, which have agreed to use their reasonable efforts to solicit offers
to purchase Notes. The Company will have the sole right to accept offers to
purchase Notes and may reject proposed purchases in whole or in part. The Agents
shall have the right, in their discretion reasonably exercised and without
notice to the Company, to reject any proposed purchase of Notes in whole or in
part. The Company will pay each Agent a commission of from .125% to .750%,
depending on the Stated Maturity, of the principal amount of Notes sold through
such Agent. Commissions on Notes with a Stated Maturity of greater than 30 years
will be negotiated at the time of sale.
 
     The Company may also sell Notes at a discount to an Agent for its own
account or for resale to one or more purchasers at varying prices related to
prevailing market prices at the time of resale or, if set forth in the
applicable Pricing Supplement, at a fixed public offering price, as determined
by such Agent. After any initial public offering of Notes to be resold to
purchasers at a fixed public offering price, the public offering price and any
concession or discount may be changed. In addition, an Agent may offer Notes
purchased by it as principal to other dealers. Notes sold by an Agent to a
dealer may be sold at a discount and, unless otherwise specified in the
applicable Pricing Supplement, such discount allowed will not be in excess of
the discount received by such Agent from the Company. Unless otherwise specified
in the applicable Pricing Supplement, any Note purchased by an Agent as
principal will be purchased at 100% of the principal amount or face amount
thereof less a percentage equal to the commission applicable to an agency sale
of a Note of identical maturity.
 
     The Company reserves the right to sell Notes directly to the public on its
own behalf in those jurisdictions where it is authorized to do so. No commission
will be payable on any sales made directly to the public by the Company.
 
     No Note will have an established trading market when issued. The Notes will
not be listed on any securities exchange. An Agent may make a market in the
Notes, but such Agent is not obligated to do so and may discontinue any
market-making at any time without notice. There can be no assurance of a
secondary market for any Notes, or that the Notes will be sold.
 
     An Agent, whether acting as agent or principal, may be deemed to be an
"underwriter" within the meaning of the Securities Act. The Company has agreed
to indemnify each Agent against certain liabilities, including liabilities under
the Securities Act of 1933, as amended, or to contribute to payments that such
Agent may be required to make in respect thereof. The Company has agreed to
reimburse the Agents for certain expenses.
 
                                      S-22
<PAGE>   23
 
     In connection with the offering of Notes made hereby, the Agents may
purchase and sell the Notes in the open market. These transactions made include
over-allotment and stabilizing transactions and purchases to cover short
positions created by the Agents in connection with the offering. Stabilizing
transactions consist of certain bids or purchases for the purpose of preventing
or retarding a decline in the market price of the Notes, and short positions
created by the Agents involve the sale by the Agents of a greater amount of
Notes than they are required to purchase from the Company in the offering. The
Agents also may impose a penalty bid, whereby selling concessions allowed to
dealers in respect of the Notes sold in the offering for their account may be
reclaimed by the Agents if such Notes are repurchased by the Agents in
stabilizing or covering transactions. These activities may stabilize, maintain
or otherwise affect the market price of the Notes, which may be higher than the
price that might otherwise prevail in the open market; and these activities, if
commenced, may be discounted at any time. These transactions may be effected in
the over-the-counter market or otherwise.
 
                                      S-23
<PAGE>   24
 
PROSPECTUS
 
                                  $400,000,000
 
                             UNION TANK CAR COMPANY
 
                                DEBT SECURITIES
 
                            ------------------------
 
     Union Tank Car Company, a Delaware corporation (the "Company"), may offer
from time to time, in one or more series, up to $400,000,000 aggregate principal
amount (or the equivalent in foreign currencies or currency units) of its debt
securities ("Debt Securities"), on terms to be determined at the time the Debt
Securities are offered for sale. Unless otherwise provided in a Prospectus
Supplement, the Debt Securities of any series may be represented by a single
global certificate registered in the name of a depository's nominee and, if so
represented, beneficial interests in the global certificate will be shown on,
and transfers thereof will be effected only through, records maintained by the
depository and its participants. Debt Securities may be offered through
underwriters, dealers or agents. The names of any underwriters, dealers or
agents and any compensation to such underwriters, dealers or agents will be set
forth in the Prospectus Supplement.
 
     The terms of the Debt Securities, including, where applicable, the specific
designation, aggregate principal amount, authorized denominations, currencies in
which such Debt Securities are issued or payable, maturity, rate (or manner of
calculation thereof) and time of payment of interest, if any, whether the Debt
Securities are issuable in registered form or bearer form or both, whether any
series of the Debt Securities will be represented by a single global
certificate, any terms for redemption or for sinking fund payments, whether the
Debt Securities are convertible into Debt Securities of a different series, the
initial public offering price, the net proceeds to the Company from the sale of
the Debt Securities and any other specific terms in connection with the offering
and sale of the Debt Securities in respect of which this Prospectus is being
delivered will be set forth in a Prospectus Supplement.
 
                            ------------------------
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
                            ------------------------
 
     This Prospectus may not be used to consummate a sale of Debt Securities
unless accompanied by a Prospectus Supplement.
 
                            ------------------------
 
                The date of this Prospectus is January 16, 1997.
<PAGE>   25
 
                             AVAILABLE INFORMATION
 
     The Company has filed with the Securities and Exchange Commission (the
"Commission") a Registration Statement on Form S-3 (the "Registration
Statement") under the Securities Act of 1933, as amended (the "Securities Act"),
with respect to the Debt Securities. This Prospectus, which forms a part of the
Registration Statement, does not contain all of the information set forth in the
Registration Statement, certain parts of which are omitted in accordance with
the rules and regulations of the Commission. For further information pertaining
to the Debt Securities and the Company, reference is made to the Registration
Statement. Any statement contained herein concerning the provisions of any
document is not necessarily complete and, in each instance, reference is made to
the copy of such document filed as an exhibit to the Registration Statement or
otherwise filed with the Commission.
 
     The Company is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and in accordance
therewith files reports and other information with the Commission. Information
concerning the Company can be inspected and copied at the public reference
facilities maintained by the Commission at 450 Fifth Street, N.W., Washington,
D.C. 20549, and at the following Regional Offices of the Commission: Chicago
Regional Office, Citicorp Center, 500 West Madison Street, Suite 1400, Chicago,
Illinois 60661 and New York Regional Office, 7 World Trade Center, Suite 1300,
New York, New York 10048. Copies of such material can be obtained from the
Public Reference Section of the Commission at 450 Fifth Street, N.W.,
Washington, D.C. 20549 at prescribed rates. Such materials also may be accessed
electronically by means of the Commission's home page on the Internet at
http://www.sec.gov.
 
                      DOCUMENTS INCORPORATED BY REFERENCE
 
     The Company's Annual Report on Form 10-K for the fiscal year ended December
31, 1995 filed on March 11, 1996, as amended by Form 10-K/A filed on May 3, 1996
and by Form 10-K/A filed on May 17, 1996, and its Quarterly Reports on Form 10-Q
for the quarters ended March 31, 1996, June 30, 1996 and September 30, 1996, as
filed with the Commission pursuant to the Exchange Act, are incorporated herein
by reference.
 
     All documents filed by the Company pursuant to Section 13(a), 13(c), 14 or
15(d) of the Exchange Act after the date of this Prospectus and prior to the
termination of the offering of the Debt Securities shall be deemed to be
incorporated by reference in this Prospectus and to be a part hereof from the
date of filing of such documents. Any statement contained in a document
incorporated or deemed to be incorporated by reference herein, or contained in
this Prospectus, shall be deemed to be modified or superseded for purposes of
this Prospectus to the extent that a statement contained herein or in any other
subsequently filed document which also is or is deemed to be incorporated by
reference herein modifies or supersedes such statement. Any such statement so
modified or superseded shall not be deemed, except as so modified or superseded,
to constitute a part of this Prospectus.
 
     The Company will provide without charge to each person to whom this
Prospectus is delivered, upon written request of such person, a copy (without
exhibits) of any or all documents incorporated by reference in this Prospectus.
Requests for such copies should be directed to the General Counsel and
Secretary, Union Tank Car Company, 225 West Washington Street, Chicago, Illinois
60606, telephone (312) 372-9500.
 
                                  THE COMPANY
 
     Union Tank Car Company (with its wholly-owned subsidiaries herein
collectively referred to, except as the context otherwise requires, as the
"Company") is principally engaged in the leasing of railway tank cars and other
rail cars to United States, Canadian and Mexican manufacturers and other
shippers of chemical products, including liquid fertilizers, petroleum products,
including liquid petroleum gas, food products and bulk plastics. The Company
owns and operates one of the largest fleets of privately-owned railway tank cars
in the world.
 
                                        2
<PAGE>   26
 
     The Company, which was incorporated in Delaware in 1980 and is the
successor to a business which was incorporated in New Jersey in 1891 and
reincorporated in Delaware in 1968, is a wholly-owned subsidiary of Marmon
Industrial Corporation, a wholly-owned subsidiary of Marmon Holdings, Inc.
Substantially all the stock of Marmon Holdings, Inc. is owned, directly or
indirectly, by trusts for the benefit of certain members of the Pritzker family.
As used herein, "Pritzker family" refers to the lineal descendants of Nicholas
J. Pritzker, deceased.
 
     The Company's principal executive offices are located at 225 West
Washington Street, Chicago, Illinois 60606, and its telephone number is (312)
372-9500.
 
                                USE OF PROCEEDS
 
     The net proceeds to be received by the Company from the sale of Debt
Securities will be added to the general funds of the Company and may be used to
finance the addition of railcars to the Company's fleet and other capital
expenditures, to finance acquisitions, to repay outstanding indebtedness, or for
other corporate purposes or as may be described in a Prospectus Supplement. The
Company has not allocated a specific portion of the proceeds for any particular
use at this time. Pending such use, the net proceeds may be temporarily invested
in short-term securities.
 
                         DESCRIPTION OF DEBT SECURITIES
 
     The following description sets forth certain general terms and provisions
of the Debt Securities to which any Prospectus Supplement may relate. The
particular terms and provisions of the series of Debt Securities offered by a
Prospectus Supplement, including any additional covenants or changes to existing
covenants relating to such series, and the extent to which such general terms
and provisions described below may apply thereto, will be described in the
Prospectus Supplement relating to such series of Debt Securities.
 
     The Debt Securities are to be issued under an Indenture, dated as of
January 16, 1997, as supplemented (the "Debt Indenture"), between the Company
and Harris Trust and Savings Bank, as Trustee (the "Debt Trustee"). The
following summaries of certain provisions of the Debt Securities and the Debt
Indenture do not purport to be complete and are subject to, and are qualified in
their entirety by reference to, all provisions of the Debt Securities and the
Debt Indenture, including the definitions therein of certain terms. Particular
sections of the Debt Indenture which are relevant to the discussion are cited
parenthetically. Wherever particular sections or defined terms of the Debt
Indenture are referred to, it is intended that such sections or defined terms
shall be incorporated herein by reference. Capitalized terms not otherwise
defined herein shall have the meaning ascribed to such terms in the Debt
Indenture.
 
GENERAL
 
     The Debt Indenture does not limit the amount of Debt Securities which can
be issued thereunder or the amount of debt which may otherwise be incurred by
the Company, and additional debt securities may be issued under the Debt
Indenture up to the aggregate principal amount which may be authorized from time
to time by, or pursuant to a resolution of, the Company's Board of Directors or
by a supplemental indenture. Reference is made to the Prospectus Supplement for
the following terms, if applicable, of the particular series of Debt Securities
being offered thereby: (i) the title of the Debt Securities of the series; (ii)
any limit upon the aggregate principal amount of the Debt Securities of the
series; (iii) the date or dates on which the principal of the Debt Securities of
the series will be payable; (iv) the rate or rates (or manner of calculation
thereof), if any, at which the Debt Securities of the series will bear interest,
the date or dates from which any such interest will accrue and on which such
interest will be payable, and, with respect to Debt Securities of the series in
registered form, the record date for the interest payable on any interest
payment date; (v) the place or places where the principal of and interest, if
any, on the Debt Securities of the series will be payable; (vi) any redemption
or sinking fund provisions; (vii) the denominations in which Debt Securities of
the series shall be issuable; (viii) if other than the principal amount thereof,
the portion of the principal amount of Debt Securities of the series which will
be payable upon declaration of acceleration of the maturity thereof; (ix)
whether the Debt Securities of the series will be issuable in registered or
bearer form or both, any
 
                                        3
<PAGE>   27
 
restrictions applicable to the offer, sale or delivery of Debt Securities in
bearer form ("bearer Debt Securities") and whether and the terms upon which
bearer Debt Securities will be exchangeable for Debt Securities in registered
form ("registered Debt Securities") and vice versa; (x) any provisions relating
to the conversion of Debt Securities of the series into Debt Securities of a
different series; (xi) whether and under what circumstances the Company will pay
additional amounts on the Debt Securities of the series held by a person who is
not a U.S. person (as defined below) in respect of taxes or similar charges
withheld or deducted and, if so, whether the Company will have the option to
redeem such Debt Securities rather than pay such additional amounts; (xii) the
currencies in which payments of interest, premium or principal are payable with
respect to such Debt Securities; (xiii) whether the Debt Securities of any
series will be issued as one or more Global Securities; (xiv) whether Debt
Securities of the series will be issuable in Tranches; and (xv) any additional
provisions or other terms not inconsistent with the provisions of the Debt
Indenture, including any terms which may be required by or advisable under
United States laws or regulations or advisable in connection with the marketing
of Debt Securities of such series. (Section 2.1 and 2.2) To the extent not
described herein, principal and interest, if any, will be payable, and the Debt
Securities of a particular series will be transferable, in the manner described
in the Prospectus Supplement relating to such series. "Principal" when used
herein includes, when appropriate, the premium, if any, on the Debt Securities.
 
     Each series of Debt Securities will constitute unsecured and unsubordinated
indebtedness of the Company and will rank on a parity with the Company's other
unsecured and unsubordinated indebtedness. There are no covenants or "event
risk" provisions contained in the Debt Indenture that may afford holders of Debt
Securities protection in the event of a highly leveraged transaction involving
the Company.
 
     Debt Securities of any series may be issued as registered Debt Securities
or bearer Debt Securities or both as specified in the terms of the series.
Additionally, Debt Securities of any series may be represented by a single
global note registered in the name of a depository's nominee and, if so
represented, beneficial interests in such global note will be shown on, and
transfers thereof will be effected only through, records maintained by a
designated depository and its participants. Unless otherwise indicated in the
Prospectus Supplement, Debt Securities will be issued in the denomination of
$1,000 and integral multiples thereof and bearer Debt Securities will not be
offered, sold, resold or delivered to U.S. persons in connection with their
original issuance. Debt Securities of any series may be denominated in and
payments of principal and interest may be made in United States dollars or any
other currency, including composite currencies such as the European Currency
Unit. For purposes of this Prospectus, "U.S. person" means a citizen or resident
of the United States, any corporation, partnership or other entity created or
organized in or under the laws of the United States or any political subdivision
thereof, or any estate or trust the income of which is subject to United States
federal income taxation regardless of its source.
 
     To the extent set forth in the Prospectus Supplement, except in special
circumstances set forth in the Debt Indenture, interest on bearer Debt
Securities will be payable only against presentation and surrender of the
coupons for the interest installments evidenced thereby as they mature at a
paying agency of the Company located outside of the United States and its
possessions. (Section 2.5(c)) The Company will maintain such an agency for a
period of two years after the principal of such bearer Debt Securities has
become due and payable. During any period thereafter for which it is necessary
in order to conform to United States tax laws or regulations, the Company will
maintain a paying agent outside of the United States and its possessions to
which the bearer Debt Securities and coupons related thereto may be presented
for payment and will provide the necessary funds therefor to such paying agent
upon reasonable notice. (Section 2.4)
 
     Bearer Debt Securities and the coupons related thereto will be transferable
by delivery. (Section 2.8(f))
 
     If appropriate, United States federal income tax consequences applicable to
a series of Debt Securities will be described in the Prospectus Supplement
relating thereto.
 
BOOK-ENTRY REGISTRATION
 
     If the Prospectus Supplement so indicates, the Debt Securities will be
represented by one or more certificates (the "Global Securities"). The Global
Securities representing Debt Securities will be deposited with, or on behalf of,
The Depository Trust Company ("DTC") or other successor depository appointed by
 
                                        4
<PAGE>   28
 
the Company (DTC or such other depository is herein referred to as the
"Depository") and registered in the name of the Depository or its nominee. Debt
Securities represented by a Global Security will not be issuable in definitive
form.
 
     DTC currently limits the maximum denomination of any single Global Security
to $200,000,000. Therefore, for purposes hereof, "Global Security" refers to the
Global Security or Global Securities representing the entire issue of Debt
Securities of a particular series.
 
     DTC has advised the Company and any underwriters, dealers or agents named
in the Prospectus Supplement as follows: DTC is a limited-purpose trust company
organized under the laws of the State of New York, a member of the Federal
Reserve System, a "clearing corporation" within the meaning of the New York
Uniform Commercial Code and a "clearing agency" registered pursuant to the
provisions of Section 17A of the Exchange Act. DTC was created to hold
securities for its participants ("DTC Participants") and to facilitate the
clearance and settlement of securities transactions between DTC Participants
through electronic book-entry changes in accounts of DTC Participants, thereby
eliminating the need for physical movement of securities certificates. DTC
Participants include securities brokers and dealers, banks, trust companies and
clearing corporations. Indirect access to the DTC book-entry system is also
available to others, such as banks, brokers, dealers and trust companies, that
clear through or maintain a custodial relationship with a DTC Participant,
either directly or indirectly ("Indirect Participants").
 
     Upon the issuance by the Company of Debt Securities represented by a Global
Security, DTC will credit, on its book-entry registration and transfer system,
the respective principal amounts of the Debt Securities represented by such
Global Security to the accounts of DTC Participants. The accounts to be credited
shall be designated by the underwriters, dealers or agents. Ownership of
beneficial interests in the Global Security will be limited to DTC Participants
and Indirect Participants. Ownership of beneficial interests in Debt Securities
represented by the Global Security will be shown on, and the transfer of that
ownership will be effected only through, records maintained by DTC (with respect
to interests of DTC Participants), or by DTC Participants or Indirect
Participants (with respect to persons other than DTC Participants). The laws of
some states require that certain purchasers of securities take physical delivery
of such securities in definitive form. Such limits and such laws may impair the
ability to transfer beneficial interests in the Global Security.
 
     So long as the Depository for the Global Security, or its nominee, is the
registered owner of the Global Security, the Depository or its nominee, as the
case may be, will be considered the sole owner or holder of the Debt Securities
represented by such Global Security for all purposes under the Debt Indenture.
Except as provided below, owners of beneficial interests in Debt Securities
represented by the Global Security will not be entitled to have Debt Securities
represented by such Global Security registered in their names, will not receive
or be entitled to receive physical delivery of Debt Securities in definitive
form and will not be considered the owners or holders thereof under the Debt
Indenture.
 
     Payments of principal of and interest, if any, on the Debt Securities
represented by the Global Security registered in the name of DTC or its nominee
will be made by the Company through the Debt Trustee under the Debt Indenture or
a paying agent (the "Paying Agent"), which may also be the Debt Trustee under
the Debt Indenture, to DTC or its nominee, as the case may be, as the registered
owner of the Global Security. Neither the Company, the Debt Trustee, nor the
Paying Agent will have any responsibility or liability for any aspect of the
records relating to or payments made on account of beneficial ownership
interests of the Global Security or for maintaining, supervising or reviewing
any records relating to such beneficial ownership interests.
 
     The Company has been advised that DTC, upon receipt of any payment of
principal or interest in respect of a Global Security, will credit immediately
the accounts of DTC Participants with payment in amounts proportionate to their
respective holdings in principal amount of beneficial interest in such Global
Security as shown on the records of DTC. The Company expects that payments by
DTC Participants to owners of beneficial interests in a Global Security will be
governed by standing customer instructions and customary practices, as is now
the case with securities held for the accounts of customers in bearer form or
registered in "street name" and will be the responsibility of such DTC
Participants.
 
                                        5
<PAGE>   29
 
     If the Depository with respect to a Global Security is at any time
unwilling or unable to continue as Depository and a successor Depository is not
appointed by the Company within 90 days, the Company will issue certificated
notes in exchange for the Debt Securities represented by such Global Security.
 
     The information contained in this section concerning DTC and DTC's
book-entry system has been obtained from sources that the Company believes to be
reliable but the Company takes no responsibility for the accuracy thereof.
 
SAME-DAY SETTLEMENT
 
     If the Prospectus Supplement so indicates, settlement for the Debt
Securities will be made by the underwriters, dealers or agents in immediately
available funds and all payments of principal and interest on the Debt
Securities will be made by the Company in immediately available funds. Secondary
trading in long-term notes and debentures of corporate issuers is generally
settled in clearinghouse or next-day funds. In contrast, the Debt Securities
subject to settlement in immediately available funds will trade in the
Depository's Same-Day Funds Settlement System until maturity, and secondary
market trading activity in such Debt Securities will therefore be required by
the Depository to settle in immediately available funds. No assurance can be
given as to the effect, if any, of settlement in immediately available funds on
trading activity in the Debt Securities.
 
EXCHANGE OF DEBT SECURITIES
 
     Registered Debt Securities may be exchanged, subject to certain specified
restrictions, for an equal aggregate principal amount of registered Debt
Securities of the same series and date of maturity in such authorized
denominations as may be requested upon surrender of the registered Debt
Securities at an agency of the Company maintained for such purpose and upon
fulfillment of all other requirements of such agent. (Section 2.8(a))
 
     To the extent permitted by the terms of a series of Debt Securities
authorized to be issued in registered form and bearer form, bearer Debt
Securities may be exchanged for an equal aggregate principal amount of
registered or bearer Debt Securities of the same series and date of maturity in
such authorized denominations as may be requested upon surrender of the bearer
Debt Securities with all unpaid coupons relating thereto at an agency of the
Company maintained for such purpose and upon fulfillment of all other
requirements of such agent. (Section 2.8(b)) As of the date of this prospectus,
temporary United States Treasury regulations essentially prohibit exchanges of
registered debt securities for bearer debt securities and, unless such
regulations are modified, the terms of a series of debt securities will not
permit registered debt securities to be exchanged for bearer debt securities.
 
AMENDMENT AND WAIVER
 
     Subject to certain exceptions, the Debt Indenture and the Debt Securities
may be amended or supplemented by the Company and the Debt Trustee with the
written consent of the holders of a majority in principal amount of the
outstanding Debt Securities of each series affected by the amendment or
supplement (with each series voting as a class), or compliance with any
provision may be waived with the consent of the holders of a majority in
principal amount of the outstanding Debt Securities of each series affected by
such waiver (with each series voting as a class). However, without the consent
of each Securityholder affected, an amendment or waiver may not (i) reduce the
amount of Debt Securities whose holders must consent to an amendment or waiver,
(ii) change the rate of or change the time for payment of interest on any Debt
Security; (iii) change the principal of or change the Stated Maturity of any
Debt Security; (iv) reduce any premium payable upon redemption of any Debt
Security; (v) waive a default in the payment of the principal of or interest on
any Debt Security; (vi) make any Debt Security payable in money other than that
stated in the Debt Security; or (vii) impair the right to institute suit for the
enforcement of any payment on or with respect to any Debt Security. (Section
9.02) The Debt Indenture may be amended or supplemented without the consent of
any Securityholder (i) to cure any ambiguity, defect or inconsistency in the
Debt Indenture or in the Debt Securities of any series; (ii) to provide for the
assumption of all the obligations of the Company
 
                                        6
<PAGE>   30
 
under the Debt Securities and any coupons appertaining thereto and under the
Debt Indenture by any corporation in connection with a merger, consolidation, or
transfer or lease of the Company's property and assets substantially as an
entirety, as provided for in the Debt Indenture; (iii) to secure the Debt
Securities; (iv) to provide for uncertificated Debt Securities in addition to or
in place of certificated Debt Securities; (v) to make any change that does not
adversely affect the rights of any Securityholder; (vi) to provide for the
issuance of and establish the form and terms and conditions of a series of Debt
Securities or to establish the form of any certifications required to be
furnished pursuant to the terms of the Debt Indenture or any series of Debt
Securities; or (vii) to add to rights of Securityholders. (Section 9.1)
 
SUCCESSOR ENTITY
 
     The Company may consolidate with, or merge into, or be merged into, or
transfer or lease its property and assets substantially as an entirety to,
another U.S. corporation which assumes all the obligations of the Company under
the Debt Securities and any coupons appertaining thereto and under the Debt
Indenture if, after giving effect thereto, no default under the Debt Indenture
shall have occurred and be continuing. Thereafter, except in the case of a
lease, all such obligations of the Company shall terminate. (Section 5.1 and
Section 5.2)
 
DEFEASANCE, SATISFACTION AND DISCHARGE OF THE DEBT SECURITIES PRIOR TO MATURITY
 
     Defeasance. Unless provided for otherwise in the Prospectus Supplement, if
the Company shall deposit with the Debt Trustee, in trust, at or before
maturity, lawful money or direct obligations of the United States of America or
obligations the principal of and interest on which are guaranteed by the United
States of America in such amounts and maturing at such times that the proceeds
of such obligations to be received upon the respective maturities and interest
payment dates of such obligations will provide funds sufficient, in the opinion
of a nationally recognized firm of independent public accountants chosen by the
Company, to pay when due the principal of and interest on the Debt Securities to
maturity (such money or direct obligations of, or obligations guaranteed by, the
United States of America, initially deposited or equivalent cash or securities
subsequently exchanged therefor, to be held as security for the payment of such
principal and interest), then the Company may omit to comply with certain of the
terms of the Debt Indenture as they relate to the Debt Securities, and the Event
of Default described in clause (iv) under the caption "Description of Debt
Securities -- Events of Default," and such other Events of Default as may be set
forth in the Prospectus Supplement. Defeasance of the Debt Securities would be
subject to the satisfaction of certain conditions, including, among others, (i)
the absence of an Event of Default at the date of the deposit, (ii) the
perfection of the holders' interest in such deposit and (iii) that such deposit
would not result in a breach of a material instrument by which the Company is
bound. (Section 8.2)
 
     Satisfaction and Discharge. Upon the deposit of money or securities
contemplated above and the satisfaction of certain conditions, the Company may
omit to comply with its obligations duly and punctually to pay the principal of
and interest on the Debt Securities, or with any Events of Default with respect
thereto, and thereafter the holders of Debt Securities shall be entitled only to
payment out of the money or securities deposited with the Debt Trustee. Such
conditions may include, among others, (i) except in certain limited
circumstances involving a deposit made within one year of maturity, (A) the
absence of an Event of Default at the date of deposit or on the 91st day
thereafter, and (B) the delivery to the Debt Trustee by the Company of an
opinion of nationally recognized tax counsel to the effect that holders of Debt
Securities will not recognize income, gain or loss for Federal income tax
purposes as a result of such deposit and discharge and will be subject to
Federal income tax on the same amounts and in the same manner and at the same
times as would have been the case if such deposit and discharge had not
occurred, and (ii) the receipt by the Company of an opinion of counsel to the
effect that such satisfaction and discharge will not result in a violation of
the rules of any nationally recognized exchange on which the Debt Securities are
listed. (Section 8.1)
 
EVENTS OF DEFAULT
 
     The following events are defined in the Debt Indenture as "Events of
Default" with respect to a series of Debt Securities: (i) default in the payment
of interest on any Debt Security of such series for 30 days;
 
                                        7
<PAGE>   31
 
(ii) default in the payment of the principal of any Debt Security of such
series; (iii) default in the payment of any sinking fund installment required to
be made by the Company with respect to any series of Debt Securities; (iv)
failure by the Company for 90 days after notice to it to comply with any of its
other agreements in the Debt Securities of such series, in the Debt Indenture or
in any supplemental indenture under which the Debt Securities of that series may
have been issued; and (v) certain events of bankruptcy or insolvency. (Section
6.1) If an Event of Default occurs with respect to the Debt Securities of any
series and is continuing, the Debt Trustee or the holders of at least 25% in
principal amount of all of the outstanding Debt Securities of that series may
declare the principal (or, if the Debt Securities of that series are original
issue discount Debt Securities, such portion of the principal amount as may be
specified in the terms of that series) of, and any accrued interest on, all the
Debt Securities of that series to be due and payable. Upon such declaration,
such principal (or, in the case of original issue discount Debt Securities, such
specified amount) and all accrued interest thereon shall be due and payable
immediately. (Section 6.2)
 
     Securityholders may not enforce the Debt Indenture or the Debt Securities,
except as provided in the Debt Indenture. (Section 6.6) The Debt Trustee may
require indemnity satisfactory to it before it enforces the Debt Indenture or
the Debt Securities. (Section 7.1(f)) Subject to certain limitations, holders of
a majority in principal amount of the Debt Securities of each series affected
(with each series voting as a class) may direct the Debt Trustee in its exercise
of any trust power. (Section 6.5) The Debt Trustee may withhold from
Securityholders notice of any continuing default (except a default in payment of
principal or interest) if it determines in good faith that withholding notice is
in their interests. (Section 7.5) The Company is not required under the Debt
Indenture to furnish any periodic evidence as to the absence of default or as to
compliance with the terms of the Debt Indenture.
 
CONCERNING THE DEBT TRUSTEE
 
     Harris Trust and Savings Bank ("Harris Bank") serves as trustee under an
Equipment Trust Agreement, dated as of November 15, 1990, between the Company
and Harris Bank and under a Pass Through Trust Agreement, dated as of January
16, 1997, between the Company and Harris Bank. In addition, Harris Bank provides
customary banking services to the Company and certain of its affiliates.
 
                              PLAN OF DISTRIBUTION
 
     The Company may sell the Debt Securities being offered hereby: (i) through
agents, (ii) to or through underwriters, (iii) through dealers or (iv) through a
combination of any such methods of sale.
 
     The distribution of the Debt Securities may be effected from time to time
in one or more transactions either (i) at a fixed price or prices, which may be
changed, or (ii) at market prices prevailing at the time of sale, or (iii) at
prices related to such prevailing market prices, or (iv) at negotiated prices.
 
     Offers to purchase Debt Securities may be solicited directly by agents
designated by the Company from time to time. Any such agent, which may be deemed
to be an underwriter as that term is defined in the Securities Act, involved in
the offer or sale of the Debt Securities in respect of which this Prospectus is
delivered will be named, and any commissions payable by the Company to such
agent will be set forth, in the Prospectus Supplement. Unless otherwise
indicated in the Prospectus Supplement, any such agent will be acting on a best
efforts basis for the period of its appointment.
 
     If an underwriter or underwriters are utilized in the sale, the Company
will execute an underwriting agreement with such underwriters at the time of
sale to them and the names of the underwriters and the terms of the transaction,
including commissions, discounts and other compensation of the underwriters and
dealers, if any, will be set forth in the Prospectus Supplement, which will be
used by the underwriters to make resales of the Debt Securities in respect of
which this Prospectus is delivered to the public.
 
     If a dealer is utilized in the sale of the Debt Securities in respect of
which this Prospectus is delivered, the Company will sell such Debt Securities
to the dealer, as principal. The dealer may then resell such Debt Securities to
the public at varying prices to be determined by such dealer at the time of
resale.
 
                                        8
<PAGE>   32
 
     If so indicated in the Prospectus Supplement, the Company will authorize
agents, underwriters or dealers to solicit offers by certain specified
institutions to purchase Debt Securities from the Company at the public offering
price set forth in the Prospectus Supplement pursuant to contracts providing for
payment and delivery on a specified date in the future. Such contracts will be
subject only to those conditions set forth in the Prospectus Supplement, and the
Prospectus Supplement will set forth the commission payable for solicitation of
such contracts.
 
     Underwriters, dealers, agents and other persons may be entitled, under
agreements which may be entered into with the Company, to indemnification
against certain civil liabilities, including liabilities under the Securities
Act.
 
     Underwriters, dealers and agents may be customers of, engage in
transactions with or perform services for the Company in the ordinary course of
business.
 
                                 LEGAL OPINIONS
 
     Unless otherwise indicated in the Prospectus Supplement to this Prospectus,
certain legal matters in connection with the Debt Securities offered hereby will
be passed upon for the Company by Neal, Gerber & Eisenberg, Chicago, Illinois,
and for any underwriters or agents, by Mayer, Brown & Platt, New York, New York.
 
                                    EXPERTS
 
     The consolidated financial statements of Union Tank Car Company appearing
in Union Tank Car Company's Annual Report (Form 10-K/A) for the year ended
December 31, 1995, have been audited by Ernst & Young LLP, independent auditors,
as set forth in their report thereon included therein and incorporated herein by
reference. Such consolidated financial statements are incorporated herein by
reference in reliance upon such report given upon the authority of such firm as
experts in accounting and auditing.
 
                                        9
<PAGE>   33
 
NO DEALER, SALESPERSON OR OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATIONS OTHER THAN THOSE CONTAINED OR
INCORPORATED BY REFERENCE IN THIS PROSPECTUS SUPPLEMENT AND THE ACCOMPANYING
PROSPECTUS IN CONNECTION WITH THE OFFER MADE BY THIS PROSPECTUS SUPPLEMENT AND
THE ACCOMPANYING PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE COMPANY
OR THE AGENTS. THIS PROSPECTUS SUPPLEMENT AND THE ACCOMPANYING PROSPECTUS DO NOT
CONSTITUTE AN OFFER TO SELL OR A SOLICITATION OF AN OFFER TO BUY ANY SECURITY IN
ANY JURISDICTION IN WHICH OR TO ANY PERSON TO WHOM IT IS UNLAWFUL TO MAKE SUCH
OFFER OR SOLICITATION. NEITHER THE DELIVERY OF THIS PROSPECTUS SUPPLEMENT AND
THE ACCOMPANYING PROSPECTUS NOR ANY SALE MADE HEREUNDER SHALL UNDER ANY
CIRCUMSTANCES CREATE AN IMPLICATION THAT THERE HAS BEEN NO CHANGE IN THE AFFAIRS
OF THE COMPANY SINCE THE DATE HEREOF.
 
                             ---------------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                       PAGE
                                       ----
<S>                                    <C>
PROSPECTUS SUPPLEMENT
 
Pricing Supplement...................   S-2
Description of Notes.................   S-2
Federal Income Tax Consequences......  S-16
Plan of Distribution.................  S-22
 
PROSPECTUS
Available Information................     2
Documents Incorporated by Reference..     2
The Company..........................     2
Use of Proceeds......................     3
Description of Debt Securities.......     3
Plan of Distribution.................     8
Legal Opinions.......................     9
Experts..............................     9
</TABLE>
 
$100,000,000
 
UNION TANK CAR
COMPANY
 
MEDIUM-TERM NOTES,
SERIES A
 
SALOMON BROTHERS INC
 
MORGAN STANLEY DEAN WITTER
PROSPECTUS SUPPLEMENT
 
DATED SEPTEMBER 30, 1997


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