MUNICIPAL BOND TRUST SERIES 228
485BPOS, 2000-01-27
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                                                    File No. 33-34396
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                         POST EFFECTIVE AMENDMENT NO. 9
                                       TO
                                    FORM S-6
  For Registration Under the Securities Act of 1933 of Securities of
  Unit Investment Trusts Registered on Form N-8B-2.
  A.  Exact name of Trust:
      THE MUNICIPAL BOND TRUST, SERIES 228
  B.  Name of Depositor:
      PAINEWEBBER INCORPORATED
  C.  Complete address of Depositor's principal executive office:
      PAINEWEBBER INCORPORATED
      1285 Avenue of the Americas
      New York, New York 10019
  D.  Name and complete address of agents for service:
      PAINEWEBBER INCORPORATED
      Attention: Mr. Robert E. Holley
      1200 Harbor Blvd.
      Weehawken, New Jersey 07087
  (x) Check if it is proposed that this filing should become effective
      (immediately upon filing or on January 26, 2000) pursuant to paragraph
      (b) of Rule 485.
  E.  Total and amount of securities being registered:
      An indefinite number of units of Beneficial Interest pursuant to Rule
      24f-2 under the Investment Company Act of 1940.
  F.  Proposed maximum offering price to the public of the securities being
      registered:
      Indefinite pursuant to Rule 24f-2
  G.  Amount of filing fee, computed at one-thirty-eighth of 1 percent of the
      proposed maximum aggregate offering price to the public:
      In accordance with Rule 24f-2, a fee in the amount of $0 was paid on
      March 29, 1999 in connection with the filing of the Rule 24f-2 Notice
      for the Trust's most recent fiscal year.
  H.  Approximate date of proposed sale to public:
      AS SOON AS PRACTICABLE AFTER THE EFFECTIVE DATE OF THE
      REGISTRATION STATEMENT.

                      THE MUNICIPAL BOND TRUST, SERIES 228
                              Cross Reference Sheet
                     Pursuant to Rule 404(c) of Regulation C
                        under the Securities Act of 1933
                  (Form N-8B-2 Items required by Instruction 1
                          as to Prospectus on Form S-6)
  Form N-8B-2                                                          Form S-6
  Item Number                                             Heading in Prospectus
                  I.       Organization and General Information
  1.    (a)Name of Trust                )  Front Cover
        (b)Title of securities issued   )
  2.    Name and address of             )  Back Cover
        Depositor
  3.    Name and address of             )  Back Cover
        Trustee
  4.    Name and address of             )  Back Cover
        Principal
        Underwriter                     )
  5.    Organization of Trust           )  Nature of Trust
  6.    Execution and                   )  Nature of Trust
        termination of
        Trust Agreement                 )  Termination of the Trust
  7.    Changes of name                 )  *
  8.    Fiscal Year                     )  *
  9.    Litigation                      )  *
     II.       General Description of the Trust and Securities of the Trust
  10.   General Information             )  The Trust Portfolio
        regarding
        Trust's Securities and          )  Rights of Certificate-
        Rights
        of Holders                      )  holders
  (a)   Type of Securities              )  Nature of Trust
        (Registered or Bearer)          )
  (b)   Type of Securities              )  Nature of Trust
        (Registered or Bearer)          )
  *   Not applicable, answer negative or not required.
  (c)   Rights of Holders as to         )  Rights of Certificate-
        Withdrawal or                   )  holders
        Redemption
                                        )  Redemption of Units by
                                        )  the Trustee
                                        )  The Municipal Bond Trust
                                        )  Reinvestment Program
  (d)   Rights of Holders as to         )  Secondary Market for
        conversion, transfer, etc.      )  Units Exchange Option
  (e)   Rights of Trust issues          )
        periodic payment plan           )  *
        certificates                    )
  (f)   Voting rights as to             )  Rights of Certificate-
        Securi-
        ties, under the Indenture       )  holders
  (g)   Notice to Holders as to         )
        change in                       )
        (1)Assets of Trust              )  Amendment of the
                                           Indenture
        (2)Terms and Conditions         )  Supervision of Trust
           of Trust's Securities        )  Investments
        (3)Provisions of Trust          )  Amendment of the
                                           Indenture
        (4)Identity of Depositor        )  Administration of the and
                                           Trustee
                                        )  Trust

  (h)   Consent of Security             )
        Holders
        required to change              )
        (1)Composition of assets        )  Amendment of the
                                           Indenture
           of Trust                     )
        (2)Terms and conditions         )  Amendment of the
                                           Indenture
           of Trust's Securities        )
        (3)Provisions of Indenture      )  Amendment of the
                                           Indenture
        (4)Identity of Depositor        )  Administration of the Trust
           and Trustee                  )
  (i)   Other provisions                )  The Trust-Part B
  11.   Type of Securities              )  Front Cover-The Trust-
        Comprising Units                   Portfolio
  12.   Type of securities              )  *
        comprising
        periodic payment                )
        certificates
  13.   (a)Load, fees, expenses, etc.   )  Public Offering Price of
                                        )  Units; Expenses of the
                                        )  Trust
  *   Not applicable, answer negative or not required.
        (b)Certain information          )  *
           regarding periodic payment   )  *
           certificates                 )
        (c)Certain percentages          )  *
        (d)Certain other fees, etc.     )  Expenses of the Trust
        payable by holders              )
        (e)Certain profits receivable   )  Public Offering Price of
           by depositor, principal      )  Units
           underwriters, trustee or     )  Public Offering of Units
           affiliated persons           )
        (f)Ratio of annual charges to   )  *
           income                       )
  14.   Issuance of Trust's             )  Nature of the Trust
        securities
                                        )  Public Offering of Units
  15.   Receipt and handling of         )  *
        payments from                   )
        purchasers
  16.   Acquisition and                 )  Acquisition of Securities
        disposition of
        underlying securities           )  for the Trust; Supervision
                                        )  of Trust Investments.
  17.   Withdrawal or                   )  Redemption of Units
        redemption
                                        )  by Trustee
  18.   (a)Receipt and disposition of   )  Distributions of Certifi-
           income                       )  cateholders
        (b)Reinvestment of distritions  )  *
        (c)Reserves or special fund     )  Distributions to Certifi-
                                        )  cateholders
        (d)Schedule of distribution     )  *
  19.   Records, accounts and           )  Statements to Certificate-
        report
                                        )  holders; Administration
                                        )  of the Trust
  20.   Certain miscellaneous           )  Administration of the Trust
        pro-
        visions of Trust                )
        agreement

  21.   Loans to security               )  *
        holders
  22.   Limitations on liability        )  Limitation of Liabilities
  23.   Bonding arrangements            )  Included in Form N-8B-2
  24.   Other material                  )  *
        provisions of
        trust agreement                 )
  *   Not applicable, answer negative or not required.

                     III.        Organization Personnel and
                            Affiliated Persons of Depositor
  25.   Organization of                 )  Sponsor
        Depositor
  26.   Fees received by                )  Public Offering Price of
        Depositor
                                        )  Units Expenses of the Trust
  27.   Business of Depositor           )  Sponsor
  28.   Certain information as to       )  Sponsor
        officials and affiliated        )
        persons of Depositor            )
  29.   Voting securities of            )  *
        Depositor
  30.   Persons controlling             )  Sponsor
        Depositor
  31.   Payments by Depositor           )  *
        for
        certain other services          )
        rendered to Trust               )
  32.   Payments by Depositor           )  *
        for
        certain other services          )
        rendered to Trust               )
  33.   Remuneration of                 )  *
        employees of
        Depositor for certain           )
        services
        rendered to Trust               )
  34.   Remuneration of other           )  *
        persons
        for certian services            )
        rendered
        to Trust                        )
              IV.        Distribution and Redemption of Securities
  35.   Distribution of Trust's         )  Public Offering of Units
        securities by states            )
  36.   Suspension of sales of          )  *
        Trust's
        securities                      )
  37.   Revocation of authority         )  *
        to
        distribute                      )
  38.   (a)Method of distribution       )  Public Offering of Units
        (b)Underwriting agreements      )
        (c)Selling agreements           )
  *   Not applicable, answer negative or not required.
  39.   (a)Organization of principal    )  Sponsor
           underwriter                  )
        (b)N.A.S.D. membership of       )  Sponsor
           principal underwriter        )
  40.   Certain fees received by        )  Public Offering Price of
        principal underwriter           )  Units
  41.   (a)Business of principal        )  Sponsor
           underwriter                  )
        (b)Branch officers of           )  *
           principal underwriter        )
        (c)Salesman of principal        )  *
           underwriter                  )
  42.   Ownership of Trust's            )  *
        securities
        by certain persons              )
  43.   Certain brokerage               )  *
        commissions

        received by principal           )
        underwriter                     )
  44.   (a)Method of valuation          )  Public Offering Price of
                                        )  Units
        (b)Schedule as to offering      )  *
           price                        )
        (c)Variation in Offering        )  Public Offering Price of
           price to certain persons     )  Units
  45.   Suspension of                   )  *
        redemption rights
  46.   (a)Redemption valuation         )  Redemption of Units by
                                        )  Trustee
        (b)Schedule as to redemption    )  *
           price                        )
            V.        Information concerning the Trustee or Custodian
  47.   Maintenance of position         )  Secondary Market for Units
        in
        underlying securities           )  Redemption of Units by
                                        )  Trustee
                                        )  Evaluation of the Trust
  48.   Organization and                )  Administration of the Trust
        regulation of
        Trustee                         )  Trustee
  49.   Fees and expenses of            )  Expenses of the Trust
        Trustee
  50.   Trustee's lien                  )  Expenses of the Trust
  *   Not applicable, answer negative or not required.

      VI.        Information concerning Insurance of Holders of Securities
  51.   (a)Name and address of          )  *
        Insurance Company               )
        (b)Type of policies             )  *
        (c)Type of risks insured and    )  *
           excluded                     )
        (d)Coverage of policies         )  *
        (e)Beneficiaries of policies    )  *
        (f)Terms and manner of          )  *
           cancellation                 )
        (g)Method of determining        )  *
           premiums                     )
        (h)Amount of aggregate          )  *
           premiums paid                )
        (i)Who receives any part of     )  *
           premiums                     )
        (j)Other material provisions    )  *
           of the Trust relating to     )
           insurance                    )
                         VII.       Policy of Registrant
  52.   (a)Method of selecting and      )  Acquisition of Securities
           eliminating securities       )  for the Trust
           from the Trust               )
        (b)Elimination of securities    )  *
           from the Trust               )
        (c)Policy of Trust regarding    )  Supervision of Trust
           substitution and             )  Investments
           elimination of securities    )
        (d)Description of any funda-    )  Acquisition of Securities
           mental policy of the Trust   )  for the Trust
                                        )  Supervision of Trust
                                        )  Investments
  53.   (a)Taxable status of the        )  Tax status of the Trust
           Trust                        )
        (b)Qualification of the Trust   )  Tax status of the Trust
           as a mutual investment       )
           company                      )
  *   Not applicable, answer negative or not required.

                VIII.       Financial and Statistical Information
  54.   Information regarding           )  *
        the
        Trust's past ten fiscal         )
        years
  55.   Certain information             )  *
        regarding
        periodic payment plan           )
        certificates                    )
  56.   Certain information             )  *
        regarding
        periodic payment plan           )
        certificates                    )
  57.   Certain information             )  *
        regarding
        periodic payment plan           )
        certificates                    )
  58.   Certain information             )  *
        regarding
        periodic payment plan           )
        certi-
        ficates                         )
  59.   Financial statements            )  Statement of Financial
        (Instruction 1(c) to            )  Condition
        Form S-6)
  *   Not applicable, answer negative or not required.


          THE MUNICIPAL BOND TRUST
                 SERIES 228
          (A Unit Investment Trust)
                 5,525 Units

Portfolio of Municipal Bonds

Designed for Federally Tax-Exempt Income

Monthly Distribution of Income

This Prospectus consists of two parts: Part A and
Part B. Parts A and B should both be attached for
this Prospectus to be complete.

The Securities and Exchange Commission has not
approved or disapproved these Securities or
passed upon the adequacy of this prospectus.  Any
representation to the contrary is a criminal
offense.

SPONSOR:
PAINEWEBBER INCORPORATED
PROSPECTUS PART A DATED JANUARY 26, 2000

No person is authorized to give any information
or make any representations about this Trust not
contained in this Prospectus, and you should not
rely on any other information. Read and keep both
parts of this prospectus for future reference.
Table of Contents
Part A                                    Page
Brief Description of the Trust's
 Investment Portfolio.....................A - 3
Summary of Risks..........................A - 4
Tax Status of the Trust...................A - 6
Additional Tax Considerations.............A - 7
Co-Trustees...............................A - 8
Essential Information Regarding the Trust A - 10
Interest Distribution Information.........A - 10
Financial Summary.........................A - 11
Report of Independent Auditors............A - 12
Statement of Financial Condition..........A - 13
Statement of Operations...................A - 13
Statement of Changes in Net Assets........A - 14
Schedule of Investments...................A - 15
Part B
Nature of the Trust.......................B - 1
Creation of the Trust.....................B - 1
Discussion of Significant Risks...........B - 1
Acquisition of Securities for the Trust...B - 8
Public Offering Price of Units..          B - 9
Public Offering of Units..................B - 10
Secondary Market for Units................B - 10
Estimated Current Return and Estimated
 Long Term Return...................      B - 10
Estimated Net Annual Interest Income
 Per Unit.................................B - 11
Distributions to Unitholders..............B - 11
Exchange Option...........................B - 12
Conversion Option.........................B - 14
Expenses of the Trust.....................B - 14
Description of Certificates...............B - 15
Statements to Unitholders.................B - 15
Redemption of Units by Trustee............B - 15
Evaluation of the Trust...................B - 16
Comparison of Public Offering Price and
 Redemption Value...................      B - 17
Supervision of Trust Investments..........B - 17
Administration of the Trust...............B - 17
Limitation of Liabilities.................B - 18
Amendment of the Indenture................B - 19
Rights of Unitholders.....................B - 19
Termination of Trust......................B - 19
Sponsor...................................B - 19
Legal Opinion.............................B - 19
Independent Auditors......................B - 19
Bond Ratings..............................B - 20

MUNICIPAL BOND TRUST, SERIES 228  -  PART A

Brief Description of the Trust's Investment
Portfolio

1. The Trust's Objective.

The Trust seeks interest income that is
exempt from regular federal income taxes by
investing in a fixed portfolio consisting
of municipal revenue bonds.

2. Brief Description of Municipal Revenue Bonds.

Municipal revenue bonds are bonds issued by
states, municipalities and public
authorities to finance the cost of buying,
building or improving various projects
intended to generate revenue, such as
airports, health care facilities, housing
and municipal electric, water and sewer
utilities.  Generally, payments on these
bonds depend solely on the revenues
generated by the projects, excise taxes or
state appropriations, and are not backed by
the governments' taxing power.

3. The Trust's Portfolio.

The Trust plans to hold to maturity federally
tax-exempt municipal bonds with an aggregate face
amount of $4,055,000.  The Trust is a unit
investment trust which means that, unlike a
mutual fund, the Trust's portfolio is not managed
and bonds are not sold because of market changes.

The Trust Portfolio consists of 10 issues of
municipal bonds issued by issuers located in 8
states of the United States and the District of
Columbia.

On September 30, 1999, the aggregate market value
of the Trust Portfolio, based on the bid side of
the market, was $4,238,595.

The Portfolio consists of municipal bonds of the
following types:
                       Approximate
                       Portfolio
                       Percentage

Refunded Bonds         45%
Electrical and Power   30%
Pollution Control      16%
Port                     6%
Housing                  3%


On the first day the Trust was created (the
"Initial Date of Deposit"), all of the bonds were
rated a minimum of A by Standard & Poor's
Corporation or by Moody's Investors Services,
Inc.  The ratings may have changed since the
first day of the Trust, and may continue to
change.  On September 30, 1999, the bonds were
rated A or better by S&P or by Moody's, or, in
the opinion of PaineWebber, had credit quality
similar to that of the other bonds, as follows:
Approximate
                 Portfolio
                 Percentage

AAA (S&P)        18%
Aaa (Moody's)    12%
AA (S&P)         19%
A (S&P)          17%
Aa1 (Moody's)      9%
Baa1 (Moody's)   18%
NR (Not Rated)     7%


Most of the bonds can be called in the next
several years at a premium declining over time to
par value; some bonds may be called earlier at
par for extraordinary reasons.

Is this Trust Appropriate for You?

Yes, if you want federally tax-free income.
You will benefit from a professionally
selected portfolio whose risk is reduced by
investing in bonds of several different
issuers.

No, if you want a speculative investment
that changes to take advantage of market
movements, if you do not want a tax-
advantaged investment or if you cannot
tolerate any risk.

Summary of Risks

 Risks of Investing in the Trust.

You can lose money by investing in the
Trust.  This can happen for various
reasons.  For example:

1. The price of your Units may fall due to
rising interest rates, an issuer's
worsening financial condition or a drop in
bond ratings.
2. Adverse developments in the bond issuer's
industry may affect the value of your
Units.
3. Assuming no changes in interest rates, when
you sell your Units, they will generally be
worth less than your cost because your cost
included a sales charge.
4. The Trust will receive early returns of
principal if bonds are called or sold
before they mature.  If this happens your
income will decline and you may not be able
to reinvest the money you receive at as
high a yield or as long a maturity.

 Risks of Investing in Municipal Bonds.

Investing in Municipal Bonds always
involves risk. The risks described below
are the most significant risks you may
experience while you hold Units of the
Trust.

1. Interest Rate Risk

Interest rate risk is the risk that your
investment will decline in value if
interest rates rise.  Generally, bonds with
longer maturities will change in value more
than bonds with shorter maturities.  Bonds
in the Trust are more likely to be called
when interest rates decline.  This would
result in early returns of principal to you
and may result in early termination of the
Trust.  Of course, we cannot predict how
interest rates may change.

2. Call Risk

Many bonds can be prepaid or "called" by
the issuer before their stated maturity.

For example, an issuer might call its bonds
if it no longer needs the money for the
original purpose or, during periods of
falling interest rates, if the issuer's
bonds have a coupon higher than current
market rates.  If the bonds are called,
your income will decline and you may not be
able to reinvest the money you receive at
as high a yield or as long a maturity. An
early call at par of a premium bond will
reduce your return.

3. Reduced Diversification Risk

If many investors sell their units, the
Trust will have to sell bonds.  This could
reduce the diversification of your
investment and increase your share of Trust
expenses.

4. Concentration Risk

When a certain type of bond makes up 25% or
more of the portfolio, the Trust is said to
be "concentrated" in that bond type, which
makes the Trust less diversified.

Here is what you should know about the
Trust's concentration in refunding bonds:

a refunded bond is generally not secured by a
pledge of revenues from a municipality but by an
escrow fund consisting of obligations of the U.S.
government;
the Trust receives principal and interest on
refunded bonds from the escrow agents for the
escrow funds for the refunded bonds; and
some bonds thought to be escrowed to maturity may
be called for redemption prior to maturity.

Here is what you should know about the
Trust's concentration in electric and power
bonds:

electric and power bonds  are generally secured
by revenues from power generating facilities,
including  revenues from the sale of electricity
generated and distributed to power agencies using
hydroelectric, nuclear, fossil fuels or other
power sources;
electric and power bonds may be affected by
various factors, including: extensive regulation
of facilities at both federal and state levels;
increased  costs and delays due to environmental
issues; fluctuations in fuel supplies and the
costs associated with conversion to alternate
fuel sources;
some of the issuers of the bonds in the Trust may
own, operate, or be associated with a nuclear
power facility and may experience problems unique
to the nuclear power industry, including: issues
associated with the construction, licensing and
operation of such facilities; costs associated
with plant shutdowns due to maintenance and
safety issues; problems and costs  associated
with the use and disposal of  radioactive
materials and changes in the public's view of
the nuclear power industry as a whole.

Changes to the portfolio from bond
redemptions, maturities and sales may
affect the Trust's concentration over time.

5. Liquidity Risk

The bonds will generally trade in the over-
the-counter market.  We cannot assure you
that a liquid trading market will exist,
especially since current law may restrict
the Trust from selling bonds to the
Sponsor.  The value of the bonds, and of
your investment, may be reduced if trading
in bonds is limited or absent.

6. Bond Quality Risk

A reduction in a bond's rating may decrease
its value and, indirectly, the value of
your investment in the Trust.

7. Legislation Risks

Future tax legislation could affect the
value of the Trust's portfolio by:

limiting real property taxes,
reducing tax rates,
imposing a flat or other form of tax, or
exempting investment income from tax.

Year 2000 Problem Risk

Many computer systems were designed in such
a way that they may be unable to
distinguish between the year 2000 and the
year 1900 and therefore may not properly
process and calculate date-related
information and data (commonly known as
the "Year 2000 Problem").  As with all
investment and financial companies, the
Year 2000 Problem may have an adverse
impact upon the Trust.  The Sponsor and
the Trustee have taken steps to address
the Year 2000 Problem with respect to
the computer systems they use and to
obtain reasonable assurances that similar
steps have been taken by the Trust's other
service providers.  Operations ran
smoothly from the last week in December
through the first few weeks of January,
but the Year 2000 Problem may yet have
an adverse impact on financial market
participants and other entities, including
the entities whose municipal bonds are
contained in the Trust's Portfolio.

Tax Status of the Trust

At the time of issuance of the Securities,
opinions regarding the validity of such
Securities and the exemption from federal
income tax of interest on such Securities
were rendered by bond counsel to the
respective issuers.  Neither the Sponsor,
the Trustee, nor counsel to either has made
any review of the proceedings relating to
the issuance of the Securities or the basis
for such opinions.  In the case of certain
Securities in the Trust, the opinions of
bond counsel indicate that interest on such
obligations received by a "substantial
user" of the facilities being financed with
the proceeds of such obligations, or
"related person," for periods such
obligations are held by such "substantial
user" or "related person," will not be
exempt from federal income tax.  Interest
income attributable to such Securities
received by a Unitholder who is a
"substantial user" or "related person" may
be taxable to such Unitholder.

In the opinion of Carter, Ledyard &
Milburn, counsel to the Sponsor, under
existing law:

(i) The Trust is not an association taxable
as a corporation for U.S. federal income
tax purposes but will be governed by the
provisions of Subchapter J (relating to
Trusts) of Chapter 1, Internal Revenue Code
of 1986 (the "Code").  Each Unitholder will
be considered as owning a pro rata share of
each asset of the respective Trust in the
proportion that the number of Units of such
Trust held by him bears to the total number
of outstanding Units of such Trust.  Under
Subpart E, Subchapter J of Chapter I of the
Code, income of the Trust will be treated
as income of each Unitholder of the Trust
in the proportion described.  Accordingly,
to the extent that the income of the Trust
consists of interest and original issue
discount excludable from gross income under
Section 103 of the Code, such income will
be excludable from federal gross income of
the Unitholder, except in the case of a
Unitholder who is a substantial user (or a
person related to such user) of a facility
financed through issuance of any industrial
development bonds or certain private
activity bonds held by the Trust.  All
taxpayers are nevertheless required to
disclose to the Internal Revenue Service
the amount of tax-exempt interest earned
during the year.  In the case of certain
corporations, interest on all of the
Securities is included in computing the
alternative minimum taxable income pursuant
to Section 56(c) of the Code.

(ii) If the Trustee disposes of a Security
(whether by sale, payment at maturity,
redemption or otherwise), gain or loss is
recognized to the Unitholder.  A Unitholder
will also be considered to have disposed of
all or a portion of his pro rata portion of
each Security when he sells or redeems some
or all of his Units.  Such gain or loss is
measured by comparing the Unitholder's
share of such proceeds (or, in the case of
a sale or redemption of Units, the portion
of the proceeds allocable to a Security)
with the Unitholder's adjusted basis for
such Security.

(iii) Under the income tax laws of the
State and City of New York, the Trust is
not an association taxable as a corporation
and income received by the Trust will be
treated as the income of the Unitholders in
the same manner as for federal income tax
purposes, but will not be tax-exempt except
to the extent that such income is earned on
bonds in the Trust that are otherwise tax-
exempt for New York purposes.

Additional Tax Considerations

1. Tax basis.  A Unitholder's initial basis
in his Units will be equal to the cost of
his Units, including any up-front or
deferred sales charge and the
organizational expenses borne by the
Unitholder.  Such basis must be apportioned
among each of the Securities and other
assets of  the Trust, as of the date the
Units were acquired, ratably according to
their values as of such date (or the
nearest valuation date). A Unitholder's tax
basis for his Units and for his fractional
interest in each Trust asset must be
reduced by the amount of his aliquot share
of accrued interest received by the Trust,
if any, after the date of purchase of his
Units, to the extent that such accrued
interest was included in the cost of his
Units; must also be reduced by the annual
amortization of bond premium, if any, on
Securities held by the Trust; and is
increased by the Unitholder's share of
accrued original issue discount (and market
discount, if the Unitholder elects to
include market discount in income as it
accrues) with respect to each Security held
by the Trust which, at the time the
Security was issued, had original issue
discount (or which was purchased with
market discount).

2. Bond premium.  If a Security is
purchased for a premium over its redemption
price, the amount of the premium is
included in the tax basis of the Security.
Such premium is amortized over the
remaining term of the Security, and the tax
basis of the Security is reduced each tax
year by the amount of the premium amortized
in that tax year.  As a result, under
certain circumstances Unitholders may
realize a taxable gain upon disposition of
Units even though such Units are sold or
redeemed for an amount equal to or less
than their original cost.

3. Original issue discount.  In the case of
any Security held by the Trust where the
"stated redemption price at maturity"
exceeds the "issue price," such excess
(subject to a de minimis rule) constitutes
original issue discount.  In the case of
any Security held by the Trust the interest
on which is excludable from gross income
under Section 103 of the Code, any original
issue discount which accrues with respect
thereto will be treated as interest which
is excludable from gross income under
Section 103 of the Code.  With respect to
any purchaser of Securities subsequent to
their original issuance, Section 1272(a)(7)
of the Code provides for a reduction, under
certain circumstances, in the accrued
"daily portion" of such original issue
discount.

4. Market discount.  The Code subjects tax-
exempt bonds to the market discount rules
of the Code effective for bonds purchased
after April 30, 1993.  In general, market
discount is the amount (if any) by which
the stated redemption price at maturity
exceeds an investor's purchase price
(except to the extent that such difference,
if any, is attributable to original issue
discount not yet accrued) subject to a
statutory de minimis rule. Market discount
can arise based on the price the Trust pays
for Securities or the price a Unitholder
pays for his Units.  Under the Code,
accretion of market discount is taxable as
ordinary income; under prior law, the
accretion had been treated as capital gain.
Market discount that accretes while the
Trust holds a Security would be recognized
as ordinary income by the Unitholders when
principal payments are received on the
Security, upon sale or at redemption
(including early redemption), or upon the
sale or redemption of his or her Units,
unless a Unitholder elects to include
market discount in taxable income as it
accrues.

5. Corporate alternative minimum tax.
Because the Trust does not include any
"specified private activity bonds" within
the meaning of Section 57(a)(5) of the Code
issued on or after August 8, 1986, none of
the Trust's interest income shall be
treated as an item of tax preference when
computing the alternative minimum tax.  In
the case of corporations, the alternative
minimum tax depends upon the corporation's
alternative minimum taxable income
("AMTI"), which is the corporation's
taxable income with certain adjustments.

Pursuant to Sections 56(c) and (g) of the
Code, one of the adjustment items used in
computing AMTI of a corporation (other than
an S Corporation, Regulated Investment
Company, Real Estate Investment Trust or
REMIC) is an amount equal to 75% of the
excess of such corporation's "adjusted
current earnings" over an amount equal to
its AMTI (before such adjustment item and
the alternative tax net operating loss
deduction).  "Adjusted current earnings"
includes all tax-exempt interest, including
interest on all Securities in the Trust,
and tax-exempt original issue discount.

Effective for taxable years beginning after
December 31, 1997, the alternative minimum
tax will not apply to corporations having
annual gross receipts, generally, not in
excess of $5 million.

6. Disallowance of related items.  Under
Section 265 of the Code, interest on
indebtedness incurred or continued to
purchase or carry Units is not deductible
for federal income tax purposes.  Under
rules used by the Internal Revenue Service
for determining when borrowed funds are
considered used for the purpose of
purchasing or carrying particular assets,
the purchase of Units may be considered to
have been made with borrowed funds even
though the borrowed funds are not directly
traceable to the purchase of Units. Also,
under Section 265, a Unitholder will
generally not be entitled to a deduction
for his pro rata share of fees and expenses
of the Trust, or for the amortization of
bond premium, because they are incurred in
connection with the production of tax-
exempt income.

7. Taxability of Social Security benefits.
Code Section 86 provides that a portion of
social security benefits are includible in
taxable income for taxpayers whose
"modified adjusted gross income", combined
with 50% of their social security benefits,
exceeds a base amount.  The base amount is
$25,000 for an individual, $32,000 for a
married couple filing a joint return, and
zero for married persons filing separate
returns.  Under Code Section 86, interest
on tax-exempt bonds is to be added to
adjusted gross income for purposes of
determining whether an individual's income
exceeds the base amount.

The foregoing discussion relates only to
U.S. federal and certain aspects of New
York State and City income taxes.
Depending on their state of residence,
Unitholders may be subject to state and
local taxation and should consult their own
tax advisers in this regard.  The preceding
discussion also omits certain rules
applicable to certain financial
institutions, insurance companies, foreign
corporations, S corporations and other
entities subject to special rules under the
Internal Revenue Code.

Co-Trustees

The Co-Trustees are Bank One Corporation
(formerly, The First National Bank of
Chicago), a national banking association
with its corporate trust office at One Bank
One Plaza, Chicago, Illinois 60670 (which
is subject to supervision by the
Comptroller of the Currency, the Federal
Deposit Insurance Corporation and the Board
of Governors of the Federal Reserve System)
and Investors Bank & Trust Company, a
Massachusetts trust company with its office
at Hancock Towers, P.O. Box 9130, Boston,
Massachusetts 02117-9130, telephone no. 1-
800-356-2754 (which is subject to
supervision by the Massachusetts
Commissioner of Banks, the Federal Deposit
Insurance Corporation and the Federal
Reserve System).
ESSENTIAL INFORMATION REGARDING THE TRUST
AS OF SEPTEMBER 30, 1999

Initial Date of Deposit and of Trust Indenture
and Agreement
October 19, 1990

Principal Amount of Bonds in Trust
$4,055,000

Number of Units Outstanding
5,525

Minimum Purchase
1 Unit

Fractional Undivided Interest in Trust Represented
by each Unit
1/5,525th

Public Offering Price
Aggregate Bid Price of Bonds in Trust$4,238,618 *~
Divided by 5,525 Units$767.17 *~
Plus Sales Charge of
0.94% of Public Offering Price7.27
Public Offering Price per Unit$774.44 *~



Redemption Value per Unit
$767.17 *~

Excess of Public Offering Price per Unit Over
Redemption Value per Unit
$7.27

Sponsor's Repurchase Price per Unit
$767.17 *~

Excess of Public Offering Price per Unit Over
Sponsor's Repurchase Price per Unit
$7.27

Minimum Principal Distribution
No distribution need be made from Principal
Account if balance of Account is less than $10,000.

Evaluation Time
4 P.M. New York Time

Mandatory Termination Date * *
January 1, 2040

Discretionary Termination
Indenture may be terminated if value of Trust is
less than $2,000,000.


<TABLE>
           INTEREST DISTRIBUTION INFORMATION
<CAPTION>
                                                                      Monthly
<S>                                                                   <C>
Gross annual interest income per unit                                 $56.43
Less estimated annual fees and expenses per unit * * * *              2.23
Less Sponsor's annual fee per unit * * * *                            .17
Estimated net annual interest income per unit                         $54.03
Estimated interest distribution per unit                              $4.50
Daily rate at which estimated net interest accrues per unit           $.1500
Estimated current return * * *                                        6.98%
Record dates                                                          1st of
                                                                      each month
Interest distribution dates                                           15th of
                                                                      each month
Trustee's annual fee per $1,000 principal amount of bonds * * * *     $1.09
Evaluator's daily fee per bond * * * *                                $.30

 __________________

          * Plus accrued interest.
       * * The actual termination of the Trust
may be considerably earlier (see "Termination
of the Trust"
in Part B).
     * * * The estimated current return is
increased for transactions entitled to a
reduced sales charge
  (see "Public Offering Price of Units" in
Part B).
   * * * * See "Expenses of the Trust" in Part
B.
         ~ Includes undistributed principal
funds.
</TABLE>
<TABLE>
               FINANCIAL SUMMARY
<CAPTION>
The following sets forth a summary of
distributions and redemption values per unit
for The Municipal Bond Trust, Series 228.
                                             DISTRIBUTIONS
               PERIOD ENDING                 PER UNIT
<S>            <C>                           <C>
MONTHLY        September 30, 1997            $72.21
               September 30, 1998            71.22
               September 30, 1999            60.05
PRINCIPAL      September 30, 1997            1.23
               September 30, 1998            130.41
               September 30, 1999            123.65
As of December 31, 1997, 1998 and September
30, 1999, the redemption values per unit were
$1,061.70, $921.89, and $767.17 plus accrued
interest to the respective dates.
</TABLE>
<TABLE>
            REPORT OF INDEPENDENT AUDITORS
<C>                                 <S>
THE UNITHOLDERS, SPONSOR AND CO-TRUSTEES
THE MUNICIPAL BOND TRUST, SERIES 228:
 We have audited the accompanying statement of
financial condition, including the schedule of
investments, of The Municipal Bond Trust, Series
228 as of September 30, 1999 and the related
statements of operations and changes in net
assets for each of the three years in the period
then ended. These financial statements are the
responsibility of the Co-Trustees. Our
responsibility is to express an opinion on these
financial statements based on our audits.

 We conducted our audits in accordance with
auditing standards generally accepted in the
United States. Those standards require that
we plan and perform the audit to obtain
reasonable assurance about whether the
financial statements are free of material
misstatement. An audit includes
examining, on a test basis, evidence supporting
the amounts and disclosures in the financial
statements. Our procedures included confirmation
of the securities owned as of September 30, 1999,
as shown in the statement of financial condition
and schedule of investments, by correspondence
with the Co-Trustees. An audit also includes
assessing the accounting principles used and
significant estimates made by the Co-Trustees, as
well as evaluating the overall financial
statement presentation. We believe that our
audits provide a reasonable basis for our
opinion.

 In our opinion, the financial statements
referred to above present fairly, in all material
respects, the financial position of The Municipal
Bond Trust, Series 228 at September 30, 1999 and
the results of its operations and changes in its
net assets for each of the three years in the
period then ended, in conformity with accounting
principles generally accepted in the United
States.
           ERNST & YOUNG LLP
New York, New York
January 10, 2000
</TABLE>
<TABLE>
             THE MUNICIPAL BOND TRUST
                     SERIES 228
           STATEMENT OF FINANCIAL CONDITION
                 September 30, 1999
<CAPTION>
                      ASSETS
<S>                                                                        <C>         <C>
Investment in municipal bonds - at market value (Cost $4,019,511)
(note 4 to schedule of investments)                                                    $4,238,595
Accrued interest receivable                                                            121,193
Total Assets                                                                           $4,359,788
             LIABILITIES AND NET ASSETS
Trustee advance payable                                                                $908
Distribution payable (note E)                                                          24,918
Accrued expenses payable                                                               6,354
Total Liabilities                                                                      32,180
Net assets (5,525 units of fractional undivided interest outstanding):
Cost to investors (note B)                                                 $4,219,959
Less gross underwriting commissions (note C)                               (200,448)
                                                                           4,019,511
Net unrealized market appreciation (note D)                                219,084
Net amount applicable to unitholders                                       4,238,595
Undistributed investment income-net                                        88,990
Undistributed proceeds from bonds sold or redeemed                         23
Net Assets                                                                             4,327,608
Total Liabilities and Net Assets                                                       $4,359,788
Net Asset Value Per Unit                                                               $783.28

              STATEMENT OF OPERATIONS
<CAPTION>
                                                                 Year Ended September 30,
                                                                  1999         1998         1997
<S>                                                               <C>          <C>          <C>
Investment Income - Interest                                      $360,948     $483,318     $521,211
Less expenses:
Trustee's fees, Evaluator's fees and expenses                     14,430       16,642       17,904
Total expenses                                                    14,430       16,642       17,904
Investment Income-net                                             346,518      466,676      503,307
Realized and unrealized gain (loss) on investments-net:
Net realized gain on securities transactions                      118,742      65,306       52,871
Net change in unrealized market depreciation                      (296,040)    (174,482)    (101,994)
Net loss on investments                                           (177,298)    (109,176)    (49,123)
Net increase in net assets resulting from operations              $169,220     $357,500     $454,184
  See accompanying notes to financial statements.
</TABLE>
<TABLE>
             THE MUNICIPAL BOND TRUST
                   SERIES 228
       STATEMENT OF CHANGES IN NET ASSETS
<CAPTION>
                                                                 Year Ended September 30,
                                                                  1999         1998         1997
<S>                                                               <C>          <C>          <C>
Operations:
Investment income-net                                             $346,518     $466,676     $503,307
Net realized gain on securities transactions                      118,742      65,306       52,871
Net change in unrealized market depreciation                      (296,040)    (174,482)    (101,994)
Net increase in net assets resulting from operations              169,220      357,500      454,184
Less: Distributions to Unitholders
Investment Income                                                 344,186      465,585      501,238
Principal                                                         689,686      818,776      8,490
Total Distributions                                               1,033,872    1,284,361    509,728
Less: Units Redeemed by Unitholders (Note F)
Value of units at date of redemption                              564,044      577,044      522,431
Accrued interest at date of redemption                            10,451       10,441       9,380
Total Redemptions                                                 574,495      587,485      531,811
Decrease in net assets                                            (1,439,147)  (1,514,346)  (587,355)
Net Assets:
Beginning of period                                               5,766,755    7,281,101    7,868,456
End of period                                                     $4,327,608   $5,766,755   $7,281,101
  See accompanying notes to financial statements.

            NOTES TO FINANCIAL STATEMENTS
               September 30, 1999
(A) The financial statements of the Trust are
prepared on the accrual basis of accounting.
Bond transactions are accounted for on the date
the bonds are purchased or sold.
(B) Cost to the investors represents the initial
public offering price as of the initial date of
deposit computed on the basis set forth under
"Public Offering Price Of Units" included in Part
B, adjusted for bonds called or sold since the
initial date of deposit.
(C) The aggregate sales charge was computed on
the basis set forth under "Public Offering Price
of Units" included in Part B.
(D) At September 30, 1999, the gross unrealized
market appreciation was $219,084 and the gross
unrealized market depreciation was $0. The net
unrealized market appreciation was $219,084.
(E) Distributions of the net investment income to
Unitholders are declared and paid monthly. See
the Financial Summary included in Part A.
(F) The following units were redeemed with
proceeds of bonds sold as follows:
<CAPTION>
                                                                 Year Ended September 30,
                                                                  1999         1998         1997
<S>                                                               <C>          <C>          <C>
Number of units redeemed                                          625          562          487
Redemption amount                                                 $574,495     $587,485     $531,811
</TABLE>
<TABLE>
THE MUNICIPAL BOND TRUST, SERIES 228
Schedule of Investments as of September 30, 1999
<CAPTION>
                                                               Coupon      Redemption
       Aggregate                                               Rate/       Features(3)
Lot    Principal                                              Maturity     C-Callable        Market
No.     Amount             Description           Rating(1)     Date(5)   S.F.-Sinking Fund   Value(4)
<C>    <C>         <C>                         <C>           <C>          <C>              <C>
1.     $135,000    ALASKA HOUSING FINANCE
                   CORPORATION COLLATERAL-
                   IZED HOME MORTGAGE BONDS
                   1989 SERIES B-1~            AAA           7.65%        C.12/01/01@102   $140,901
                                                             06/01/2024   S.F. 06/01/2010
2.     495,000     COLORADO HEALTH FACILITIES
                   AUTHORITY HOSPITAL SYSTEM
                   REVENUE BONDS (SWEDISH
                   MEDICAL CENTER PROJECT)
                   SERIES 1990A (REFUNDED) ~   Aaa(2)        7 1/2%       C.10/01/00@1      522,388
                                                             10/01/2000   S.F. NONE
3.     105,000     DISTRICT OF COLUMBIA
                   REVENUE BONDS (ASSOCIATION
                   OF MEDICAL COLLEGES ISSUE)
                   SERIES 1990 (REFUNDED) ~    AA-           7 1/2%       C.02/15/00@1      108,515
                                                             02/15/2000   S.F. NONE
4.     265,000     LOUISIANA OFFSHORE TERM-
                   INAL AUTHORITY DEEPWATER
                   PORT REFUNDING REVENUE
                   BONDS, FIRST STAGE SERIES E
                   (LOOP INC. PROJECT) (RE-
                   FUNDED) ~                   NR            7.60%        C.09/01/00@1      278,939
                                                             09/01/2000   S.F. NONE
5.     235,000     LOUISIANA OFFSHORE TERM-
                   INAL AUTHORITY DEEPWATER
                   PORT REFUNDING REVENUE
                   BONDS, FIRST STAGE SERIES E
                   (LOOP INC. PROJECT) ~       A             7.60%        C.09/01/00@1      245,892
                                                             09/01/2010   S.F. NONE
6.     650,000     TOWN OF SKOWHEGAN, MAINE
                   POLLUTION CONTROL REVENUE
                   REFUNDING BONDS (SCOTT
                   PAPER COMPANY PROJECT)
                   1990 SERIES B~              AA            8.10%        C.10/01/00@102    682,266
                                                             10/01/2015   S.F. 10/01/2000
7.     355,000     DETROIT, MICHIGAN CITY
                   SCHOOL DISTRICT, SCHOOL
                   BUILDING AND SITE BONDS
                   (UNLIMITED TAX GENERAL
                   OBLIGATION) SERIES XXIII
                   (REFUNDED) ~                Aa1(2)        7 3/4%       C.05/01/00@1      370,134
                                                             05/01/2000   S.F. NONE
                                                                                             (Continued)
</TABLE>
<TABLE>
THE MUNICIPAL BOND TRUST, SERIES 228
Schedule of Investments as of September 30, 1999
<CAPTION>
                                                               Coupon      Redemption
       Aggregate                                               Rate/       Features(3)
Lot    Principal                                              Maturity     C-Callable        Market
No.     Amount             Description           Rating(1)     Date(5)   S.F.-Sinking Fund   Value(4)
<C>    <C>         <C>                         <C>           <C>          <C>              <C>
8.     $610,000    STATE OF NEW HAMPSHIRE
                   TURNPIKE SYSTEM REVENUE
                   BONDS, 1990 SERIES (REFUND-
                   ED) ~                       AAA           7.40%        C.04/01/00@1      $633,180
                                                             04/01/2000   S.F. NONE
9.     455,000     MATAGORDA COUNTY NAVIGA-
                   TION DISTRICT NUMBER ONE
                   (TEXAS) ADJUSTABLE RATE
                   COLLATERALIZED POLLUTION
                   CONTROL REVENUE BONDS
                   (CENTRAL POWER AND LIGHT
                   COMPANY PROJECT) SERIES
                   1984A~                      A             7 1/2%       C.12/15/99@1      470,957
                                                             12/15/2014   S.F. NONE
10.    750,000     MASON COUNTY, WEST
                   VIRGINIA POLLUTION CONTROL
                   REVENUE BONDS (APPALA-
                   CHIAN POWER COMPANY
                   PROJECT), SERIES H~         Baa1(2)       7 7/8%       C.11/01/00@1      785,423
                                                             11/01/2013   S.F. NONE
     $4,055,000                                                                           $4,238,595
 (1) All ratings are by Standard &
Poor's Corporation unless otherwise
indicated.  A brief description of
applicable rating symbols is given under
"Bond Ratings" included in Part B.  For
concentration of credit risk, see
"Securities in the Trust Portfolio" in
Part A.
 (2) Moody's Investors Service, Inc.'s
rating.  A brief description of
applicable rating symbols is given under
"Bond Ratings" included in Part B.
 (3) C.-Indicates the first year in
which an issue of bonds is redeemable in
whole, or in part, by the operation of
the optional call provisions, and the
redemption price for that year; unless
otherwise indicated, each issue
continues to be redeemable at declining
prices thereafter but not below par.
S.F.-Indicates the next date on which an
issue of bonds is subject to scheduled
sinking fund redemption and the
redemption price for that date; unless
otherwise indicated, such issue of bonds
is subject to scheduled sinking fund
redemption at par.
 Bonds listed as non-callable, as well
as those listed as callable, may also be
redeemable at par, under certain
circumstances, from special redemption
payments.
 (4) The Market Value is determined by
the Evaluator on the bid side of the
market, on a basis identical to that set
forth under "Public Offering Price of
Units" included in Part B.
 (5) The Maturity Date noted for all
Refunded Bonds is the date on which such
Bonds have been irrevocably called for
redemption by the issuers thereof.
 (6) Escrowed to Maturity.
</TABLE>


              MUNICIPAL BOND TRUST
PROSPECTUS PART B
PART B OF THIS PROSPECTUS MAY NOT BE DISTRIBUTED
UNLESS ACCOMPANIED BY PART A.

Part B contains a description of the important
features of the Municipal Bond Trust and also
includes a more detailed discussion of the
investment risks that a Unitholder might face
while holding Trust Units.
               NATURE OF THE TRUST
 Each series of The Municipal Bond Trust is a
separate but similar unit investment trust,
formed for the purpose of obtaining federally
tax-exempt interest income consistent with the
preservation of capital and diversification of
risk through investment in a fixed portfolio
comprised of "investment grade" (as of the
Initial Date of Deposit) interest-bearing Bonds.
State Trusts were formed for the additional
purpose of obtaining interest income exempt from
state income taxes for purchasers who qualify as
residents of the state for which each such Trust
is named. The Sponsor and the Trustee do not have
control over the course of payment of the
principal of and interest on the Securities,
therefore they cannot guarantee that the
objectives of the Trust will be achieved. The
interest on the Bonds, in the opinion of counsel
to the issuers of such Bonds, is, or upon their
issuance and delivery will be, exempt from
present Federal income taxes. Capital gains, if
any, will be subject to taxation.
 The portfolio of the Trust consists of interest-
bearing Securities, issued by or on behalf of
states, counties and municipalities within the
United States, and authorities, agencies and
other such political subdivisions.

              CREATION OF THE TRUST
 The Trust was created under the laws of the
State of New York pursuant to a Trust Indenture
and Agreement* (the "Indenture"), dated as of the
Initial Date of Deposit, among PaineWebber
Incorporated, as Sponsor, the Trustee identified
in Part A of this prospectus and Kenny
Information Systems, Inc., a division of J.J.
Kenny Co., Inc. as Evaluator.
 On the Initial Date of Deposit, the Sponsor
deposited with the Trustee the Securities or
confirmations of contracts for the purchase of
the Securities at prices determined by the
Evaluator on the basis of current offering prices
of the Securities. Confirmations of contracts for
the purchase of the Bonds were delivered to the
Trustee together with an irrevocable letter of
credit drawn on a commercial bank in an amount
sufficient for their purchase. Following the
deposit, the Trustee delivered to the Sponsor
registered Certificates for Units evidencing the
entire ownership of the Trust. Each Unit
represents a fractional undivided interest in the
Trust in an amount equal to one divided by the
total number of Units outstanding. On the Initial
Date of Deposit there was one Unit for each
$1,000 face amount of Securities deposited in the
Trust.

            DISCUSSION OF SIGNIFICANT RISKS
 An investment in Units of the Trust should be
made with an understanding of the risks which an
investment in fixed rate long-term debt
obligations may entail, including the risk that
the value of the Trust portfolio and hence of the
Units will decline with increases in interest
rates: See "Summary of Risks" in Part A.
 As set forth under "Brief Description of the
Trust's Investment Portfolio" and "Schedule of
Investments" in Part A, the Trust may contain or
be concentrated in one or more of the categories
of Securities referred to below. The types of
issuers and percentages of any concentrations for
this Trust are set forth in Part A. These
categories are described in Part B because an
investment in Units of the Trust should be made
with an understanding of the risks which these
investments may entail.

General Obligation Bonds
 General obligation debt of an issuer that is a
political subdivision or instrumentality of a
state is typically secured by the full faith and
credit of the issuer, encompassing its ability to
levy an unlimited ad valorem tax on real property
or other revenue streams, such as sales or income
taxes. The fiscal condition of an issuer may be
affected by socioeconomic factors beyond the
issuer's control (such as relocation by a major
employer) or other unanticipated events,
including: natural disasters, declines in the
state's industrial base

____________
 *Reference is hereby made to the Trust Indenture
and Agreement and any statements contained herein
are qualified in their entirety by the provisions
of said Trust Indenture and Agreement.
or an inability to attract new industries,
imposition of tax rate decreases or
appropriations limitations by legislation or
initiative; increased expenditures mandated by
Federal or state law or by judicial decree;
reduction of unrestricted federal or state aid
and of revenue-sharing programs due to subsequent
legislative changes in appropriations or aid
formulas; or disallowances by the Federal or
state governments for categorical grants. The
fiscal condition of an issuer that is a political
subdivision or instrumentality of a state (such
as a county, city, school district or other
entity providing public services) is related to
the size and diversification of its tax and
revenue base and to such other factors as: the
effect of inflation on the general operating
budget and of other costs, including salaries and
fringe benefits, energy and solid waste disposal;
changes in state law and statutory
interpretations affecting traditional home rule
powers (which vary from state to state); levels
of unrestricted state aid or revenue-sharing
programs and state categorical grants subject to
annual appropriation by a state legislature;
increased expenditures mandated by state law or
judicial decree; and disallowances for expenses
incurred under Federal or state categorical grant
programs. The local economy may be or become
concentrated (i) in a single industry, which may
be affected by natural or other disasters or by
fluctuations in commodity prices, or (ii) in a
particular company, the operations of which may
be impaired due to labor disputes, relocation,
bankruptcy or corporate take-over. Such economic
factors may, in turn, affect local tax
collections and service demands. The ability of
an issuer to levy additional taxes may be subject
to state constitutional provisions, assent of the
state legislature or voter approval in a local
referendum, or constrained by economic or
political considerations. Recent changes in
Federal welfare policy may have substantial
negative impact on certain states and localities
within such states, which may in turn make their
ability to maintain balanced budgets more
difficult in future years.

Revenue Bonds
 Revenue Bonds are securities issued by states,
municipalities, public authorities and other
similar entities to finance the cost of
constructing, acquiring or improving various
projects. Unlike general obligation bonds,
municipal revenue bonds are not backed by their
issuer's taxing power or full faith and credit
and payment on municipal revenue bonds is
generally dependent solely upon revenues
generated by the project or in some cases,
specific state appropriations or excise taxes.
Examples of municipal revenue bonds are: housing
facility securities, airport facilities, power
and electronic facilities, and others listed
below in bold typeface. A brief discussion of
some of the risks associated with such revenue
bonds follows.

Housing Facility Securities
 These Securities are typically secured by
mortgage revenues derived by state housing
finance agencies, municipal housing authorities
or certain non-profit organizations from
repayments on mortgage and home improvement loans
made by such entities. Special considerations
affecting housing securities include: the
condition of the local housing market,
competition from conventional mortgage lenders,
fluctuations in interest rates, increasing
construction costs and the ability of the
Issuers, lenders, servicers and borrowers to
maintain program compliance under applicable
statutory provisions. Federal tax legislation
adopted during the 1980s imposed progressively
more restrictive requirements for post-issuance
compliance necessary to maintain the tax
exemption on both single family and multi-family
housing securities. To maintain the security's
tax exemption, the issuer may be required
pursuant to the legal documents governing the
Security to redeem all or a portion of such
obligations at par; the Sponsor is unable to
predict whether such redemptions will occur, or
what effect, if any, such redemptions would have
on any such Securities in the Trust.
 Additional considerations with regard to single-
family housing securities include: the
underwriting and management ability of the
issuers, lenders and servicers (i.e., the initial
soundness of the loan and the effective use of
available remedies should there be a default in
loan payments); the financial condition and
credit rating of the private mortgage insurer
underwriting the insurance on the underlying
mortgage or pool of mortgages; and special risks
attendant to lending to mortgagors, most of whom
are first time home buyers of low or moderate
means. During periods of declining interest
rates, there may be increased redemptions of
single family housing securities from unexpended
proceeds due to insufficient demand, because
conventional mortgage loans may become available
at interest rates equal to or less than the
interest rates charged on the mortgage loans made
available from bond proceeds. In addition,
certain mortgage loans may be prepaid earlier
than their maturity dates, because mortgage loans
made with bond proceeds usually do not carry
prepayment penalties. Additional considerations
with regard to multi-family housing securities
include: increasing operating costs; the ability
or failure to increase rental charges; and the
financial condition of housing authority Issuers
and their ability to meet certain requirements
under the Section 8 program of the United States
Housing Act of 1937, as amended. Multi-family
housing securities may also be subject to full or
partial redemption at par from the proceeds of
the sale, assignment or disposition of a
defaulted mortgage loan or acceleration of
principal payments thereunder; a condemnation or
insurance award; or a result of the reduction of
a required reserve fund.

Airport Facilities
 Bonds in the airport facilities category are
payable from and secured by revenues derived from
the gross airport operating income. The major
portion of gross airport operating income is
generally derived from fees received from
signatory airlines pursuant to use agreements
which consist of annual payments for airport use,
occupancy of certain terminal space, facilities,
service fees, concessions and leases. Airport
operating income may be affected by local
economic conditions, air traffic patterns, noise
abatement restrictions or the ability of the
airlines to meet their obligations under the use
agreements. The air transport industry is
experiencing significant variations in earnings
and traffic due to deregulation, recent
consolidations through mergers and acquisitions,
increased competition, excess industry capacity,
fluctuations in fuel and other costs, traffic
constraints and other factors. In particular,
facilities with use agreements involving airlines
experiencing financial difficulty may experience
a reduction in revenue due to the possible
inability of these airlines to meet their use
agreement obligations. The Sponsor is now unable
to predict what effect, if any, air transport
industry conditions will have on the airport
Bonds in the Trust.

Hospital and Health Care Facility Securities
 Bonds in the hospital and health care facilities
category are payable from revenues derived from
hospital, mental health, nursing home and other
health care facilities which, generally, were
constructed or are being constructed with bond
proceeds. Payment of such bonds derives generally
from revenues of health care providers. The
continuing availability of sufficient revenues is
dependent upon several factors affecting all such
facilities generally, including, among other
factors: utilization rates; the cost and
availability of malpractice insurance and the
outcome of malpractice litigation; curtailment of
operations due to shortages in qualified medical
staff or labor disputes; the need for cost
reduction as HMOs increase market competition
changes in Federal, state and private
reimbursement regulations and health care
delivery programs. The extent of the AIDS
epidemic is undetermined, and the Sponsor cannot
predict its full impact on the health care system
or particular issuers. Utilization rates for a
particular facility may be determined by cost
containment programs implemented by third party
governmental providers or private insurers; long-
term advances in health care delivery reducing
demand for in-patient services; technological
developments which may be effectively rationed by
the scarcity of equipment or specialists;
governmental approval and the ability to finance
equipment acquisitions; increased competition due
to elimination of certain certificate of need
requirements in some states; and physicians' and
public perceptions as to standards of care.
Requirements for Federal or state licenses,
certifications and contract eligibility and for
accreditation are subject to change, and may
require participating facilities to effect costly
modifications in operations. Medicare payments
have been, and may continue to be, reduced under
legislation adopting deficit reduction measures.
Additionally, certain states have recently
implemented prospective payment systems for their
Medicaid programs, and have adopted other
changes, including enrollment restrictions. The
Sponsor cannot predict the effect, if any, of
further reductions in Medicare and Medicaid
payments on the revenues of Issuers of health
care Securities in the Trust. Many hospitals,
including certain issuers (or the conduit
obligors) of Securities in the Trust, have been
experiencing significant financial difficulties
in recent years. Generally, a number of
additional legislative proposals concerning
health care may be introduced in Congress at any
time. Recently, these proposals have covered a
wide range of topics, including cost controls,
national health insurance, incentives for
competition in the provision of health care
services, tax incentives and penalties related to
health care insurance premiums, and promotion of
prepaid health care plans. The Sponsor is unable
to predict the effect of any of these proposals,
if enacted, on any of the Bonds in the Trust
portfolio. The Internal Revenue Service (the
"IRS") has been engaged in a program of extensive
audits of certain large tax-exempt hospitals and
health care providers. Although such audits have
not yet been completed there have been reports
that the tax-exempt status of certain of these
organizations may be revoked and/or that certain
monetary penalties may be owed to the IRS.

Power and Electric Facility Securities
 These Securities are typically secured by
revenues derived from power generating
facilities, which generally include revenues from
the sale of electricity generated and distributed
by power agencies using hydroelectric, nuclear,
fossil fuel or other power sources. Certain
aspects of the operation of such facilities,
particularly with regard to generation and
transmission at the wholesale level, are subject
to federal regulation and more extensive
regulation (affecting retail rate structures) is
provided by state public service commissions.
Special considerations include: restrictions on
operations and increased costs and delays
attributable to environmental statutes and
regulations; the difficulties of the utilities in
financing or refinancing large construction
programs and of the capital markets in absorbing
utility debt and equity securities; fluctuations
in fuel supplies and costs, and costs associated
with conversion to alternate fuel sources;
uncertainties with regard to demand projections
due to changing economic conditions,
implementation of energy conservation measures
and competitive cogeneration projects; and other
technical and cost factors. Recent scientific
breakthroughs in fusion energy and
superconductive materials may cause current
technologies for the generation and transmission
of electricity to become obsolete during the life
of the Securities in the Portfolio. Issuers
relying upon hydroelectric generation may
encounter contests when applying for periodic
renewal of licenses to operate dams. Issuers
relying upon coal as a fuel source may be subject
to significant costs and operating restrictions
to comply with emission standards which may be
adopted to alleviate the problems associated with
acid rain. Issuers relying upon fossil fuel
sources and located in air quality regions
designated as nonattainment areas may become
subject to pollution control measures (which
could include abandonment of construction
projects in progress, plant shutdowns or
relocation of facilities). In addition, such
Securities are sometimes secured by payments to
be made to state and local joint action power
agencies pursuant to "take or pay" agreements.
Such agreements have been held unenforceable by
state courts in Idaho, Vermont and Washington,
which may cause an examination of the legal
structure of certain projects in other states and
could possibly lead to litigation challenging the
enforceability of such agreements.
 Some of the issuers of Securities in the Trust
may own, operate or participate on a contractual
basis with nuclear generating facilities, which
may experience additional problems including: the
frequency and duration of plant shutdowns and
associated costs due to maintenance or safety
considerations; the problems and associated costs
related to the use and disposal of radioactive
materials and wastes in compliance with Federal
and local law; the implementation of emergency
evacuation plans for areas surrounding nuclear
facilities; and other issues associated with
construction, licensing, regulation, operation
and eventual decommissioning of such facilities.
These Securities may be subject to industry-wide
fluctuations in market value as a consequence of
market perception of certain highly publicized
events, as in the Washington Public Power Supply
System's defaults on its Project 4 and 5 revenue
bonds and the 1988 bankruptcy filing by the
Public Service Corporation of New Hampshire.
Federal, state or municipal governmental
authorities, or voters by initiative, may from
time to time impose additional regulations or
take such other governmental action which might
cause delays in the licensing, construction or
operation of nuclear power plants, or the
suspension or cessation of operations of
facilities which have been or are being financed
by proceeds of certain Securities in the Trust.
 Additionally, the recent movement to introduce
competition in the investor-owned electric
utility industry is likely to affect, at least
indirectly, municipal utility systems by driving
them to maintain low rates. In an effort to keep
their rates low, municipal utilities may
experience difficulties in raising rates to
completely recover their investment in generating
plants.

Industrial Development/Pollution Control
Securities
 These Securities were generally issued prior to
the enactment of 1986 Code restrictions, and are
typically secured by payments made under a loan
agreement entered into between the issuer and the
obligor. In some cases, the Securities were
additionally secured by guarantees provided by
corporate guarantors or by a stand-by letter of
credit issued by a bank. Special considerations
include: the financial condition of the corporate
obligor (or guarantor), especially as it may be
affected by subsequent corporate restructuring or
changes in corporate control; often such bonds do
not have protections which would limit or prevent
the corporate obligor from entering into
borrowings or capital restructurings that could
reduce their ability to meet their payment
obligations.

Public Facilities Securities
 These Securities are typically secured by
revenues derived from either (i) payments
appropriated by governmental entities for the use
of equipment or facilities, such as
administrative or correctional buildings, or (ii)
user charges or other revenues derived from such
operations as parking facilities, convention
centers or sports arenas. In the first instance,
the pledged revenues may be subject to annual
appropriation by legislative body. In the latter
case, the collection of revenues may be dependent
upon the reliability of feasibility forecasts and
assumptions concerning utilization rates.

Resource Recovery/Solid Waste Securities
 These Securities are typically secured by
revenues derived from the sale of electricity or
steam generated as a by-product of the process of
incinerating solid waste, and from contractual
tipping fees, user charges and ancillary
recycling earnings. Special considerations
include: the supply of solid waste at levels
sufficient for the facility to operate at design
capacity; the frequency and duration of plant
shutdowns for maintenance; the treatment and
disposal of fly ash which contains toxic
substances, especially dioxin; compliance with
air pollution control standards; unanticipated
problems associated with the use of developing
technologies; and the continuation of federal
policies facilitating congeneration and
certification of any particular qualifying
facility. Governmental service contract payments
may be subject to annual appropriation by a
legislative body. Older facilities may require
retrofitting to accommodate new technological
developments or to comply with environmental
standards. A recent decision of the United States
Supreme Court limiting a municipality's ability
to require the use of its facilities may have an
adverse affect on the credit quality of certain
securities.

Water and Sewer Facility Securities
 Bonds described as "water and sewer" facilities
Bonds are typically secured by a pledge of the
net revenues derived from connection fees and
user charges imposed by the enterprise. Such
Bonds are subject to the risks typically
associated with construction projects. Among the
factors which may affect net revenues are the
destruction of facilities due to natural or other
disasters; relocation out of the service area by
a major customer or customers due to economic
factors beyond the issuer's control; or costs
incurred due to prior periods of deferred
maintenance or compliance with Federal or state
environmental standards. Water system revenues
may be additionally affected by the terms of
supply allocations and service agreements with
major wholesale customers and the imposition of
mandatory conservation measures in response to
drought. Sewer system revenues may be
additionally affected by costs to comply with
effluent and other standards pursuant to the
Federal and state laws.

Student Loan Securities
 Student loan revenue securities are issued
either by non profit corporations organized for
the purpose of acquiring student loans originated
under the Higher Education Act ("the Act") or
public agencies or instrumentalities of a state
created to provide loans for educational
purposes. Proceeds of securities issued by such
entities generally are used to make or acquire
student loans which are either (1) guaranteed by
guaranty agencies and reinsured by the U.S.
Secretary of Education, (2) are insured directly
by the federal government or (3) not guaranteed
at all (e.g. alternative or supplemental student
loans). Bonds issued by such entities are
generally secured by and dependent upon such
state guarantee programs, Federal insurance and
reimbursement programs, the proceeds from payment
of principal and interest on the underlying
student loans and federal interest subsidy and/or
special allowance payments. Failure by the
servicers of student loans on the guaranty
agencies guaranteeing such loans to properly
service and enforce the loans may cause the
reimbursements to decline or be withheld under
the Act, if applicable.
 Both the Act and the regulations promulgated
thereunder have been the subject of extensive
amendments in recent years, and the Sponsor can
give no assurance that further amendment will not
materially change the provisions or the effect
thereof. The availability of various Federal
payments in connection with the Federal student
loan program is subject to Federal budgetary
appropriation. In recent years, legislation has
been enacted which has provided, for the recovery
of certain advances previously made by the
Federal government to state guaranty agencies in
order to achieve deficit reduction. No
representation is made as to the effect, if any,
or future Congressional appropriation or
legislation upon expenditures by the Department
of Education or upon the financial condition of
any guaranty agency.
 Student loan securities often allow the issuer
to enter into swap agreements with certain
counterparties; in such cases payment on such
bonds is also subject to the risk that the
counterparty is not able to meet its swap
obligation.

Lease Payment Bonds
 Lease Payment bonds are generally issued by
governmental financing authorities with no direct
taxing power for the construction of buildings or
the purchase of equipment to be used by a state
or local government. Such bonds may be
principally secured by governmental lease
payments which in turn are subject to the budget
appropriations of the participating governmental
entity. A governmental entity that enters into a
lease agreement cannot obligate future
governments to make lease payments but generally
will covenant to take such action as is necessary
to include all lease payments due under an
agreement in its annual budgets and to make the
appropriations therefor. The failure of a
governmental entity to meet its obligations under
a lease could result in an insufficient amount of
funds to cover payment of the Bonds secured by
such lease payments. Such bonds may also be
subject to the risk that rental obligations may
terminate in the event of destruction or damage
of the equipment or buildings.

Tax Allocation Bonds
 Bonds described as "tax allocation" securities
are payable from and secured by increased tax
revenues collected on property within the areas
where redevelopment projects, financed by bond
proceeds, are located ("project areas"). Payments
on these bonds are expected to be made from
projected increases in tax revenues derived from
higher assessed value of property resulting from
development in the particular project area and
not from an increase in the tax rates. Among the
factors which could result in a reduction of the
allocated tax revenues which secure a tax
allocation Bond are: (i) reduction of, or a less
than anticipated increase in, taxable values of
property in the project area, caused either by
economic factors beyond the issuer's control
(such as a relocation out of the project area by
one or more major property owners) or by
destruction of property due to natural or other
disasters; (ii) successful appeals by property
owners of assessed valuations; (iii) substantial
delinquencies in the payment of property taxes;
or (iv) imposition of any constitutional or
legislative property tax rate decrease. Such
reduction of tax revenues could have an adverse
effect on an issuer's ability to make timely
payments of principal and of interest on the
Bonds.

Refunded Bonds (including Escrowed to Maturity
Bonds)
 Refunded bonds (including bonds escrowed to a
call date or maturity date) are bonds that
originally had been issued generally as revenue
bonds but have been refunded for reasons which
may include changing the issuer's debt service
requirements and removing restrictive bond
covenants. Typically, a refunded bond is no
longer secured by a pledge of revenues received
by an issuer but rather by an escrow fund
consisting of U.S. Government Obligations. In
such cases the issuer establishes an escrow fund
which is irrevocable and which cannot be depleted
by the issuer so long as debt service on the
refunded bonds is required to be paid. Each
escrow fund is funded with U.S. Government
Obligations which are designed to make payments
on the refunded bonds and which cannot be
affected by a default of the issuer. An escrow
agent pays principal, redemption premium, if any,
and interest on the refunded bond from the
principal of and interest on the U.S. Government
Obligations in the escrow fund. The Trust, as
holder of the refunded bonds, is entitled to
receive such payment of principal, redemption
premium, if any, and interest on the refunded
bonds as it is paid by the escrow agents out of
the respective refunded bond escrow funds.
Investors should note that there have, however,
been a few bonds thought to be escrowed to
maturity that were, in fact, called for
redemption prior to maturity.

Crossover Refunding Bonds
 Certain Bonds in the Trust may be cross-over
refunding Bonds. Prior to a specified date, (the
"Crossover Date"), such bonds are payable solely
from an escrow fund invested in specified
securities. After the Crossover Date the Bonds
are payable from a designated source of revenues.
Such bonds are categorized in Part A as payable
from such source of revenues.

Bonds Backed by Letters of Credit or Insurance
 The Trust may contain securities that are
secured by letters of credit issued by commercial
or savings banks which may be drawn upon (i) if
an issuer fails to make payments of principal of,
premium, if any, or interest on a Bond backed by
such a letter of credit or (ii) in the event
interest on a Bond is deemed to be taxable and
full payment of principal and any premium due is
not made by the issuer. The letters of credit are
irrevocable obligations of the issuing banks.
Banks are subject to extensive governmental
regulations. The profitability of the banking
industry is largely dependent upon the
availability and cost of capital funds for the
purpose of financing lending operations under
prevailing money market conditions. Also, general
economic conditions play an important part in the
operations of the banking industry and exposure
to credit losses arising from possible financial
difficulties of borrowers or other issuers having
letters of credit might affect a bank's ability
to meet its obligations under a letter of credit.
 Certain of the Bonds in the Trust may have been
insured to maturity by the insurance company
listed on the "Schedule of Investments" in Part
A. In an Insured Series, in addition to
purchasing Bonds insured at the time of their
issuance, the Sponsor may have purchased bonds
which, prior to the Initial Date of Deposit, were
not so insured at the time of issuance. The
Sponsor has obtained an insurance policy or
policies (except as otherwise set forth in Part
A) for such bonds which were not originally
insured. The policies obtained by the Sponsor
provide either for insurance as long as the Bonds
so insured remain outstanding ("Insurance to
Maturity") or which continue in force only so
long as the Bonds so insured remain in the
Insured Trust ("Portfolio Insurance"). Portfolio
Insurance, if any, has been obtained from
Financial Guaranty. Any Insured Trust which has
obtained Portfolio Insurance has additionally
obtained an irrevocable commitment (the
"Irrevocable Commitment") of Financial Guaranty
to provide insurance to maturity ("Permanent
Insurance") upon the sale of any Bond covered by
the Portfolio Insurance from such Trust and upon
payment of a premium (the "Permanent Insurance
Premium") under certain conditions. The value of
the Bonds covered by the Portfolio Insurance and,
therefore, the Units may decline in the event of
declining credit quality. However, because of the
Irrevocable Commitment to provide Permanent
Insurance, whenever the value of a Bond which is
below investment grade and which is covered by
the Portfolio Insurance and insured to its
maturity (less the Permanent Insurance Premium)
exceeds the value of that Bond without such
insurance, the value of that Bond will be higher,
insured to maturity value (See "Evaluation of the
Trust"). The insurance policies are non-
cancellable and will remain in force as long as
the Bonds insured by such policies remain
outstanding. Premiums for Insurance to Maturity
has been paid either at the time of issuance by
the Issuer, by third-party purchasers or by the
Sponsor on the Initial Date of Deposit (See
"Summary of Portfolio-Insurance Premiums").
Premiums for Portfolio Insurance are an expense
of an Insured Trust. (See "Expenses of the
Trust"). Insurance does not guarantee the market
value of the Bonds or the value of the Units.
Although the insurance represents an element of
market value with respect to the Bonds covered by
Insurance to Maturity, the exact effect, if any,
of this insurance on the market value cannot be
predicted. No value is attributed to Portfolio
Insurance unless the Bond so insured is rated
below investment grade.
Payment under all of these insurance policies
will be made in respect of principal of and
interest on Bonds which shall be due for payment
under the provisions of each policy, but shall be
unpaid. All such policies provide for payment of
the principal or interest due to a trustee or
paying agent on the date such payment is due. In
turn, such trustee or paying agent will make
payment to the bondholder (in this case, the
Trustee) upon presentation of satisfactory
evidence of such Bondholder's right to receive
such payment. Policies issued by Industrial
Indemnity Insurance Company prior to December 17,
1984 permit the Company, at its option, to
accelerate payments under the insurance policies.
Most insurance policies, however, do not provide
for accelerated payments of principal or interest
nor do they cover redemptions resulting from
events of taxability.
 Certain insurance companies have been
restructured and have been absorbed or merged
into others. Additional information relating to
the individual insurance companies listed on the
"Schedule of Investments" may be obtained from
publicly available information.
 Insurance companies are subject to extensive
regulation and supervision where they do business
by state insurance commissioners who regulate the
standards of solvency which must be maintained,
the nature of limitations on investments, reports
of financial condition, and requirements
regarding reserves for unearned premiums, losses
and other matters. A significant portion of the
assets of insurance companies are required by law
to be held in reserve against potential claims on
policies and is not available to general
creditors. Although the federal government does
not regulate the business of insurance, federal
initiatives including pension regulation,
controls on medical care costs, minimum standards
for no-fault automobile insurance, national
health insurance, tax law changes affecting life
insurance companies and repeal of the antitrust
exemption for the insurance business can
significantly impact the insurance business.

Ratings on the Bonds in the Insured Series and on
Units of the Insured Series
 On the Initial Date of Deposit Standard & Poor's
Corporation rated each of the Bonds in the
Portfolio and the Units of each Insured Trust
"AAA" because the insurers have issued insurance
policies to insure each of the Bonds. The Units
of each Insured Trust (with the exception of
Units of those Insured Trusts identified in Part
A) continue to be rated "AAA". See Part A for the
current ratings on the Bonds and Units. (See also
"Bond Ratings", herein). The Bond and Unit
ratings should not be construed as an approval of
the offering of the Units by Standard & Poor's
Corporation or as a guarantee of the market value
of the Trust or of the Units. Standard & Poor's
has been compensated by the Sponsor for its
services in rating Units of the Trust.

Insurance Premiums
 The cost of the Insurance to Maturity has been
paid either by the issuers at the time of
issuance, by third-party purchasers or by the
Sponsor. Portfolio Insurance premiums are a Trust
expense.

Risk Factors Pertaining to a Single State Trust
 Investment in a Trust which holds securities
issued only by obligors in a single state, such
as California, may involve additional risks to
that of an investment in a Trust with a portfolio
of securities from several states, due to the
decreased diversification of political,
financial, economic and market risks. A brief
description of the factors which may affect the
financial condition of the applicable state,
together with a discussion of certain tax
considerations relating to such state, appear in
Part A.

Legislation
 From time to time, proposals are introduced in
Congress to, among other things, reduce federal
income tax rates, impose a flat tax, exempt
investment income from tax or abolish the federal
income tax and replace it with another form of
tax. Enactment of any such legislation could
adversely affect the value of the Units. The
Sponsor, however, cannot predict what
legislation, if any, in respect of tax rates may
be proposed, nor can it predict which proposals,
if any, might be enacted. Also, certain
proposals, in the form of state legislative
proposals or voter initiatives, seeking to limit
real property taxes have been introduced in
various states, and an amendment to the
Constitution of the State of California,
providing for strict limitations on real property
taxes, has had a significant impact on the taxing
powers of local governments and on the financial
condition of school districts and local
governments in California. In addition, other
factors may arise from time to time which
potentially may impair the ability of issuers to
make payments due on the Bonds. Under the Federal
Bankruptcy Code, for example, municipal bond
issuers, as well as any underlying corporate
obligors or guarantors, may proceed to
restructure or otherwise alter the terms of their
obligations.
 From time to time, Congress considers proposals
to prospectively and retroactively tax the
interest on state and local obligations, such as
the Bonds. The Supreme Court clarified in South
Carolina v. Baker (decided on April 20, 1988)
that the U.S. Constitution does not prohibit
Congress from passing a nondiscriminatory tax on
interest on state and local obligations. This
type of legislation, if enacted into law, could
require investors to pay income tax on interest
from the Bonds and could adversely affect an
investment in Units.

Payment of the Bonds and Life of the Trust
 The size and composition of the Portfolio will
change over time. Most of the Bonds are subject
to redemption prior to their stated maturity
dates pursuant to optional refunding or sinking
fund redemption provisions or otherwise. In
general, optional refunding redemption provisions
are more likely to be exercised when the value of
a Bond is at a premium over par than when it is
at a discount from par. Some Bonds may be subject
to sinking fund and extraordinary redemption
provisions which may commence early in the life
of the Trust. Additionally, the size and
composition of the Trust will be affected by the
level of redemptions of Units that may occur from
time to time. Principally, this will depend upon
the number of investors seeking to sell or redeem
their Units and whether or not the Sponsor is
able to sell the Units acquired by it in the
secondary market. As a result, Units offered in
the secondary market may not represent the same
face amount of Bonds as on the initial date of
deposit. Factors that the Sponsor will consider
in determining whether or not to sell Units
acquired in the secondary market include the
diversity of the Portfolio, the size of the Trust
relative to its original size, the ratio of Trust
expenses to income, the Trust's current and long-
term returns, the degree to which Units may be
selling at a premium over par and the cost of
maintaining a current prospectus for the Trust.
These factors may also lead the Sponsors to seek
to terminate the Trust earlier than its mandatory
termination date.

Ratings
 Each of the Bonds in the Trust was, as of the
Initial Date of Deposit, rated "A" or higher by
either Standard & Poor's Corporation or Moody's
Investors Service, Inc. (see "Schedule of
Investments") or were Bonds which the Sponsor
reasonably believed would have obtained such
minimum rating soon thereafter. Ratings indicated
on the Schedule of Investments are Standard &
Poor's Corporation ratings unless no rating was
given to a Bond by such rating service or the
rating category assigned by Moody's Investors
Service, Inc. was higher, in which case the
Moody's Investors Service, Inc. rating was
indicated. Certain Bonds may, in addition to
their rating, be designated either "p" by
Standard & Poor's Corporation or "Con" by Moody's
Investors Service, Inc. Such designations do not
affect the rating assigned by the respective
rating services to such Bonds but provide certain
additional information (see "Bond Ratings" in
Part B and "Schedule of Investments" in Part A).

ACQUISITION OF SECURITIES FOR THE TRUST
 In selecting Bonds for deposit in the Trust many
factors were considered, and based upon the
experience and judgment of the Sponsor, the
following requirements, among others, were deemed
to be of primary importance:
 1. Minimum Standard & Poor's Corporation's
rating of "A-" or minimum Moody's Investors
Service, Inc.'s rating of "A" ("investment grade"
municipal bonds) or Bonds which the Sponsor
reasonably believes will obtain such minimum
ratings in the near future;
 2. Reasonable value relative to other issues of
similar quality and maturity;
 3. Diversification as to the purpose of each
issue and the location of each issuer; and
 4. Income to the Unitholders of the Trust.
 Cash, if any, received from Unitholders prior to
the settlement date for the purchase of Units or
prior to the payment for Bonds upon their
delivery may be used in the Sponsor's business
subject to the limitations of 17 C.F.R. Section
240. 15c3-3 under the Securities and Exchange Act
of 1934 and may be of benefit to the Sponsor.
 The Trustee has not participated in the
selection of Securities for the Trust, and
neither the Sponsor nor the Trustee will be
liable in any way for any default, failure or
defect in any Securities.
 To the best knowledge of the Sponsor, there was
no litigation pending as of the Initial Date of
Deposit in respect of any Securities which might
reasonably be expected to have a material adverse
effect upon the Trust. At any time after the
Initial Date of Deposit, litigation may have been
initiated on a variety of grounds with respect to
Securities in the Trust. Such litigation may
affect the validity of such Securities or the
tax-exempt status of the interest thereon. While
the outcome of litigation of such nature cannot
be predicted, opinions of the bond counsel are
delivered with respect to each Security on the
date of issuance to the effect that such Security
has been validly issued and that the interest
thereon is exempt from Federal income tax. If
legal proceedings are instituted after the
Initial Date of Deposit seeking, among other
things, to restrain or enjoin the payment of any
of the Bonds or attacking their validity or the
authorization or existence of the issuer, the
Sponsor may, in accordance with the Indenture,
direct the Trustee to sell such Bonds and
distribute the proceeds of such sale to
Unitholders. In addition, other factors may arise
from time to time which potentially may impair
the ability of issuers to meet obligations
undertaken with respect to Bonds.

PUBLIC OFFERING PRICE OF UNITS
 The Public Offering Price per Unit during the
secondary market will be computed by dividing the
aggregate of the bid prices of the Bonds in the
Trust plus any money in the Principal Account
other than money required to redeem the tendered
Units, by the number of Units outstanding, and
then adding the appropriate sales charge. In the
primary offering period, the Public Offering
Price was determined on the basis of the offering
prices of bonds plus a sales charge ranging from
3.5% to 5.5% of the Public Offering Price.
 The sales charge is determined in accordance
with the table set forth below based upon the
number of years remaining to the maturity of each
Bond. There is no sales charge with respect to
cash held in the Interest or Principal Accounts.
For purposes of this calculation, Bonds will be
deemed to mature on their stated maturity dates
unless: (a) the Bonds have been called for
redemption or funds or securities have been
placed in escrow to redeem them on an earlier
call date ("Refunded Bonds"), in which case such
call date shall be deemed to be the date upon
which they mature; or (b) such Bonds are subject
to a "mandatory put", in which case such
mandatory put date shall be deemed to be the date
upon which they mature.
 The effect of this method of sales charge
calculation will be that different sales charge
rates will be applied to the various Bonds in a
Trust portfolio based upon the maturities of such
Bonds, in accordance with the following schedule:
                                 Maximum
                                 Percent of
Remaining                        Public       Percent of
Years to                         Offering     Net Amount
Maturity                         Price        Invested
Less than 6 Months               0%           0%
Six Months to Less than 1 Year   0.50         .503
1 Year to Less than 4 Years      1.50         1.523
4 Years to Less than 8 Years     2.50         2.564
8 Years to Less than 15 Years    2.75         2.828
15 Years or More                 2.90         2.987


 For example, the sales charge on a Trust
consisting entirely of Bonds maturing in 8 to 15
years would be 2.75% (2.828% of the net amount
invested) and that on a Trust consisting entirely
of Bonds maturing in four to eight years would be
2.50% (2.564% of the net amount invested). The
actual sales charge included in the Public
Offering Price of any particular Trust will
depend on the maturities of the Bonds in the
portfolio of such Trust.
 Due to the realization of economies of scale in
sales effort and sales related expenses with
respect to the purchase of Units by employees of
the Sponsor, the Sponsor intends to permit
employees of the Sponsor and certain of their
relatives to purchase Units of the Trust at a
price equal to the bid-side evaluation of the
Securities in the Trust divided by the number of
Units outstanding. The Sponsor does not intend to
impose a sales charge on such employee sales.
 A proportionate share of accrued interest and
undistributed interest on the Units to the
Unitholder's settlement date (the Unitholder's
settlement date is the date so specified in the
confirmation of sale of the Units to a
Unitholder, normally five business days after
purchase) is added to the Public Offering Price.
Such proportionate share will be an asset of the
Unitholder and will be received in subsequent
distributions and upon the sale of his Units.
 Aggregate bid prices of the Securities will be
determined for the Trust by the Evaluator on the
basis of: (1) the current bid prices for the
Securities; (2) the current bid prices for
comparable bonds, if bid prices are not available
for any of the Securities; (3) determining the
value of the Securities on the bid side of the
market by appraisal; or (4) any combination of
the above. Such evaluations and computations will
be made each business day as of the Evaluation
Time, effective for all sales or redemptions made
subsequent to the last preceding determination.
 In addition to the sales charges, on the Initial
Date of Deposit, the Sponsor realized a profit or
loss resulting from the difference between the
purchase price paid by the Sponsor to buy the
Securities and the cost of the Securities to the
Trust as determined by the Evaluator. The Sponsor
may realize additional profit or loss as a result
of the possible change in the daily evaluation of
the Bonds in the Trust. All proceeds received
from purchasers of Units of the Trust will be
retained by the Sponsor.

             PUBLIC OFFERING OF UNITS
 The Sponsor intends to qualify Units for sale in
all of the states of the United States, except
that for state trusts, the Sponsor intends to
qualify Units for sale only to residents of that
state. Sales may be made to dealers who are
members of the National Association of Securities
Dealers, Inc. at prices which include a
concession of 75% of the applicable sales charge
subject to change from time to time. The
difference between the dealer concession and the
sales charge will be retained by the Sponsor. The
Sponsor reserves the right to reject, in whole or
in part, any order for the purchase of Units.
 Initial Offering of Units. During the initial
public offering period, Units were offered to the
public by the Sponsor at the Public Offering
Price calculated on each business day, plus
accrued interest.
 Secondary Offering of Units. Upon the
termination of the initial public offering
period, unsold Units or Units acquired by the
Sponsor in the secondary market referred to below
may be offered to the public by the Sponsor by
this Prospectus at the then current Public
Offering Price, calculated daily, plus accrued
interest.

SECONDARY MARKET FOR UNITS
 While not obligated to do so, it is the
Sponsor's present intention to maintain, at its
expense, a secondary market for Units of this
Series and to offer to repurchase Units from
Unitholders at the "Sponsor's Repurchase Price".
The Sponsor's Repurchase Price is computed by
dividing the value of the Trust by the number of
Units outstanding (see "Evaluation of the
Trust"). There is no sales charge incurred when a
Unitholder sells Units back to the Sponsor. Any
Units repurchased by the Sponsor at the Sponsor's
Repurchase Price may be reoffered to the public
by the Sponsor at the then current Public
Offering Price, plus accrued interest. Any profit
or loss resulting from the resale of such Units
will belong to the Sponsor.
 If the supply of Units exceeds demand, or for
some other business reason, the Sponsor may,
without prior notice, at any time or occasionally
from time to time discontinue the repurchase of
Units of this Series at the Sponsor's Repurchase
Price. In such event, although under no
obligation to do so, the Sponsor may, as a
service to Unitholders, offer to repurchase Units
at the "Redemption Value". If the Sponsor
repurchases Units in the secondary market at the
"Redemption Value", it may reoffer these Units in
the secondary market at the "Public Offering
Price". In no event will the price offered by the
Sponsor for the repurchase of Units be less than
the current Redemption Value for those Units. See
"Redemption of Units by Trustee" and "Comparison
of Public Offering Price and Redemption Value".

ESTIMATED CURRENT RETURN AND ESTIMATED LONG TERM
RETURN
 The Sponsor may from time to time give investors
Estimated Current Return and Estimated Long Term
Return information, each of which give investors
different information about the return. Estimated
Current Return on a Unit represents annual cash
receipts from coupon-bearing debt obligations in
the Trust (after estimated annual expenses)
divided by the Public Offering Price (including
the sales charge).
 Unlike Estimated Current Return, Estimated Long
Term Return is a measure of the estimated return
to the investor earned over the estimated life of
the Trust. Estimated Long Term Return is
calculated using a formula which (1) takes into
consideration, and determines and factors in the
relative weightings of, the market values, yields
(which takes into account the amortization of
premiums and the accretion of discounts) and
estimated retirements of all of the Securities in
the Trust and (2) takes into account the expenses
and maximum sales charge associated with each
Unit. The Estimated Long Term Return calculation
does not take into account certain delays in
distributions of income and the timing of other
receipts and distributions on Units and may,
depending on maturities, over or understate the
impact of sales charges. Both of these factors
may result in a lower figure.
 Both Estimated Current Return and Estimated Long
Term Return are subject to fluctuation with
changes in Trust composition, changes in market
value of the underlying Securities and changes in
fees and expenses, including sales charges. The
size of any difference between Estimated Current
Return and Estimated Long Term Return can also be
expected to fluctuate at least as frequently. In
addition, both return figures may not be directly
comparable to yield figures used to measure other
investments, and, since the return figures are
based on certain assumptions and variables, the
actual returns received by a Unitholder may be
higher or lower.

ESTIMATED NET ANNUAL INTEREST INCOME PER UNIT
 The estimated Net Annual Interest Income per
Unit of the Trust is computed by dividing the
total gross annual interest income to the Trust
by the number of Units outstanding and then
subtracting the per Unit estimated annual fees
and expenses of the Trustee, the Sponsor and the
Evaluator (see "Essential Information" in Part
A). The estimated Net Annual Interest Income per
Unit will be higher for Unitholders who do not
elect the monthly plan (where alternate plans of
distribution are available). This is the result
of the differing expenses and fees of the Trustee
in administering the distributions of interest.
See "Essential Information" in Part A and
"Distributions to Unitholders".
 The estimated Net Annual Interest Income per
Unit will change whenever Securities mature, are
called for redemption, or are sold. In addition,
any change in the Trustee's, the Sponsor's (where
applicable) or Evaluator's fees or expenses will
result in a change in the estimated Net Annual
Interest Income per Unit (see "Expenses of the
Trust").

            DISTRIBUTIONS TO UNITHOLDERS
 The Trustee will collect the interest on the
Securities as it becomes payable and credit such
interest to a separate Interest Account created
by the Indenture. All moneys received by the
Trustee from sources other than interest will be
credited to a separate Principal Account. All
funds collected or received will be held by the
Trustee in trust without interest to Unitholders
as part of the Trust or the Reserve Account
referred to below until required to be disbursed
in accordance with the provisions of the
Indenture. Such funds will be segregated by
separate recordation on the Trust ledger of the
Trustee so long as such practice preserves a
valid preference under applicable law, or, if
such preference is not preserved the Trustee
shall handle such funds in such other manner as
shall constitute the segregation and holding
thereof in trust within the meaning of the
Investment Company Act of 1940, as the same may
be from time to time amended. To the extent
permitted by the Indenture and applicable banking
regulations, such funds are available for use by
the Trustee pursuant to normal banking
procedures.
 The Trustee is authorized by the Indenture to
withdraw from the Principal and/or Interest
Accounts such amounts as it deems necessary to
establish a reserve for any taxes or other
governmental charges that may be payable out of
the Trust, which amounts will be deposited in a
separate Reserve Account. If the Trustee
determines that the amount in the Reserve Account
is greater than the amount necessary for payment
of any taxes or other governmental charges, it
will promptly deposit the excess in the Account
from which it was withdrawn.
 The settlement date for the purchase of Units
must occur on or prior to the Record Date in
order for a purchaser to receive a distribution
on the next Distribution Date. If the settlement
date for the purchase of Units occurs after the
Record Date, distribution will not occur until
the second following Distribution Date.

Interest Account
 After deduction of the fees and expenses of the
Trustee, the Sponsor (where applicable and as
indicated under "Essential Information") and the
Evaluator, the Trustee will distribute on each
Distribution Date or shortly thereafter, to
Unitholders of record on the preceding Record
Date, an amount approximately equal to either
one-twelfth, one-quarter or one-half of such
Unitholder's pro rata share (depending on the
distribution plans available and selected) of the
estimated annual amount to be deposited in the
Interest Account, computed as of the preceding
Record Date. However, all Unitholders of record
on the initial Record Date will receive the
initial interest distribution on the initial
Interest Distribution Date. The Trustee's fees
and expenses will be higher for monthly interest
distributions than for quarterly or semi-annual
interest distributions, where available.
Therefore, the amount distributed per Unit to
Unitholders electing the monthly plan will be
correspondingly lower than under the quarterly or
semi-annual plan. All interest distributions
following the initial interest distribution will
be in approximately the amounts shown under
"Essential Information", depending on the plan of
distribution selected. See "Essential
Information--Plan of Distribution" in Part A for
details on electing available distribution plans.
 Because the Securities in the Trust pay interest
at varying semi-annual intervals and Units pay
interest at constant monthly, quarterly or semi-
annual intervals, the interest accrued on Units
of the Trust will be greater than the amount
available for distribution from the Interest
Account. The Trustee will distribute on each
Distribution Date an amount which will be less
than the interest accrued to each Unitholder on
the preceding Record Date. Pursuant to the
Indenture, in order to accommodate regular
interest distributions, the Trust will contain
undistributed cash balances. The difference
between the amount accrued to each Unitholder on
a Record Date and the amount distributed on the
following Distribution Date is an asset of the
Unitholder and will be included as part of
accrued interest which will be received in
subsequent interest distributions, upon the sale
of his Units or, in part, upon the sale,
redemption, or maturity of Securities in the
Trust.
 The Trustee is authorized by the Indenture to
advance such amounts as may be necessary to
provide interest distributions of approximately
equal amounts in accordance with the distribution
plan selected. The Trustee will be reimbursed,
without interest, for any such advances in the
manner provided in the Indenture.

Principal Account
 The Trustee will distribute an amount equal to
such Unitholder's pro rata share of the cash
balance, if any, in the Principal Account on the
principal Distribution Date specified under
"Distribution" under "Essential Information". The
pro rata share is computed as of the preceding
Record Date. Except for moneys used to redeem
tendered Units, proceeds received upon the
disposition of any Securities subsequent to a
Record Date and prior to the following principal
Distribution Date will be held in the Principal
Account and will not be distributed until the
next succeeding principal Distribution Date.
However, in the event of an early redemption of
bonds, sale of bonds upon the occurrence of
events set forth under "Supervision of Trust
Investments", or maturity of bonds, there may
occur a special principal distribution. Any
special principal distribution will be made
within 60 days of such event to Unitholders of
record on the Record Date selected therefor by
the Trustee as provided in the Indenture. No
distribution need be made from the Principal
Account if the cash balance therein is less than
one-tenth of one per cent of the total principal
amount of the Securities on the Initial Date of
Deposit.
 Certain of the Bonds in the Trust are subject to
sinking fund or special redemption by their
issuers, as set forth under "Redemption Features"
on the "Schedule of Investments in Part A". The
redemption price of Bonds in the Trust called by
an issuer pursuant to sinking fund or special
redemption is normally equal to the principal
amount of such Bonds, while the redemption price
for Bonds called at the option of the issuer may
include a redemption premium. In most cases Bonds
are selected from among Bonds of like series and
maturity either by lot or by such method as the
bond trustee may adopt. A capital gain or loss
may occur depending upon the price at which a
Bond which is called was acquired by the Trust
and the amount received by the Trust upon
redemption (see "Tax Status of the Trust"). In
general, optional redemption provisions are more
likely to be exercised by an issuer when the
offering side valuation is greater than par than
when the offering side valuation is less than
par. If future interest rates decline, an issuer
of Bonds might find it advantageous to exercise
its option to call Bonds prior to maturity even
though, in most cases, the issuer must pay a
premium.

Reinvestment Program
 Distributions are made to Unitholders monthly.
The Unitholder has the option of receiving the
monthly interest and/or principal distribution or
reinvesting at net asset value in the PaineWebber
Tax-Exempt Income Fund (the "Fund"), an open-end
investment company registered under the
Investment Company Act. The Fund's investment
objective is to provide high current income
exempt from Federal income tax, consistent with
the preservation of capital and liquidity within
the Fund's quality standards. Except under
unusual market conditions, the Fund will invest
at least 80% of its assets in municipal
obligations with varying maturities, the interest
from which, in the opinion of bond counsel to
their respective issuers, is exempt from both
Federal income tax and the Federal alternative
minimum tax. There can be no assurance that the
Fund will achieve its objective. For more
information about the Fund, including a
prospectus, Unitholders should contact their
PaineWebber Investment Executive or call the
Fund's shareholder service number at 1-800-544-
9300.
 To participate in the Reinvestment Program,
Unitholders must hold Units in their own name,
must fill out an application establishing an
account and notify the Trustee of the account
number at least 10 days before the Record Date.
Elections may be revoked upon similar notice.

                EXCHANGE OPTION
 Unitholders may elect to exchange any or all of
their Units of this series for units of one or
more of any series of PaineWebber Municipal Bond
Fund Series (the "PaineWebber Series"); The
Municipal Bond Trust, (the "National Series");
The Municipal Bond Trust, Multi-State Program
(the "Multi-State Series); The Municipal Bond
Trust, California Series (the "California
Series"); The Municipal Bond Trust, Insured
Series (the "Insured Series"); The Corporate Bond
Trust, (the "Corporate Series"); The PaineWebber
Pathfinders Trust, (the "Pathfinders Series"),
The PaineWebber Federal Government Trust, (the
"Government Series") or the PaineWebber Equity
Trust, (the "Equity Series") (collectively
referred to as the "Exchange Trusts").  Exchanges
made for Units of any Exchange Trust which has an
"up-front" salesload will be made at a Public
Offering Price for the units of the Exchange
Trusts to be acquired based on a reduced sales
charge of $15 per unit. Unitholders may elect to
exchange any or all of their Units for Units of
The PaineWebber Equity Trust, Growth Stock Series
22, or any other PaineWebber Exchange Trust
subject to a deferred sales charge (the "Deferred
Sales Charge Units").  The Exchange Option will
permit the exchange of Units for any Deferred
Sales Charge Units at their then-current net
asset value, with no Initial Sales Charge
imposed.  Units acquired through the Exchange
Option will continue to be subject to the
deferred sales charge installments remaining on
the Deferred Sales Charge Units so acquired.
Unitholders interested in exercising the Exchange
Option should read the current prospectus or
prospectuses relating to the Deferred Sales
Charge Units to ascertain what, if any, deferred
sales charge installments remain on such Units.
Unitholders of this Trust are not eligible for
the Exchange Option into any Exchange Trust
designated as a rollover series for the 30 day
period prior to termination of such Trust.
 The purpose of such reduced sales charge is to
permit the Sponsor to pass on to the Unitholder
who wishes to exchange Units the cost savings
resulting from such exchange of Units. The cost
savings result from reductions in time and
expense related to advice, financial planning and
operational expense required for the Exchange
Option. Each Exchange Trust has different
investment objectives, therefore a Unitholder
should read the prospectus for the applicable
Exchange Trust carefully prior to exercising this
option. Exchange Trusts having as their objective
the receipt of tax-exempt interest income would
not be suitable for tax-deferred investment plans
such as Individual Retirement Accounts. A
Unitholder who purchased Units of a series and
paid a per unit "up-front" sales charge that was
less than the per Unit "up-front" sales charge of
the series of Exchange Trusts for which such
Unitholder desires to exchange into, will be
allowed to exercise the Exchange Option at the
Unit Offering Price plus the reduced "up-front"
sales charge, provided the Unitholder has held
the Units for at least five months. Any such
Unitholder who has not held the Units to be
exchanged for the five-month period will be
required to exchange them at the Unit Offering
Price plus "up-front" sales charge based on the
greater of the reduced "up-front" sales charge,
or an amount which, together with the initial
"up-front" sales charge paid in connection with
the acquisition of the Units being exchanged,
equals the "up-front" sales charge of the series
of the Exchange Trust for which such Unitholder
desires to exchange into, determined as of the
date of the exchange.
 The Sponsor will permit exchanges at the reduced
sales charge provided there is a secondary market
maintained by the Sponsor in both the Units of
this series and units of the applicable Exchange
Trust and there are units of the applicable
Exchange Trust available for sale. While the
Sponsor has indicated that it intends to maintain
a market for the units of the respective Trusts,
there is no obligation on its part to maintain
such a market. Therefore, there is no assurance
that a market for units will in fact exist on any
given date at which a Unitholder wishes to sell
his Units of this series and thus there is no
assurance that the Exchange Option will be
available to a Unitholder. Exchanges will be
effected in whole units only. Any excess proceeds
from Unitholders' units being surrendered will be
returned. Unitholders will be permitted to
advance new money in order to complete an
exchange.
 An exchange of units pursuant to the Exchange
Option will normally constitute a "taxable event"
under the Code, i.e., a Unitholder will recognize
a tax gain or loss. Unitholders are advised to
consult their own tax advisors as to the tax
consequences of exchanging units in their
particular case.
 The Sponsor reserves the right to modify,
suspend or terminate this plan at any time
without further notice to Unitholders. In the
event the Exchange Option is not available to a
Unitholder at the time he wishes to exercise it,
the Unitholder will be immediately notified and
no action will be taken with respect to his Units
without further instruction from the Unitholder.
 To exercise the Exchange Option, a Unitholder
should notify the Sponsor of his desire to
exercise the Exchange Option and to use the
proceeds from the sale of his Units of this
series to purchase units of one or more of the
Exchange Trusts. If units of the applicable
outstanding series of the Exchange Trust are at
that time available for sale, and if such units
may lawfully be sold in the state in which the
Unitholder is resident, the Unitholder may select
the series or group of series for which he
desires his investment to be exchanged. The
Unitholder will be provided with a current
prospectus or prospectuses relating to each
series in which he indicates interest.
 The exchange transaction will operate in a
manner essentially identical to any secondary
market transaction, i.e., Units will be
repurchased at a price based on the aggregate bid
price per Unit of the securities in the portfolio
of the Trust. Units of the Exchange Trust,
however, will be sold to the Unitholder at a
reduced sales charge as discussed above. Exchange
transactions will be effected only in whole
units; thus, any proceeds not used to acquire
whole units will be paid to the selling
Unitholder.
 For example, assume that a Unitholder, who has
three units of a trust with a current price of
$1,030 per unit based on the bid prices of the
underlying securities, desires to sell his units
and seeks to exchange the proceeds for units of a
series of an Exchange Trust with a current price
of $890 per unit based on the bid prices of the
underlying securities. In this example, which
does not contemplate rounding up to the next
highest number of units, the proceeds from the
Unitholder's units will aggregate $3,090. Since
only whole units of an Exchange Trust may be
purchased under the Exchange Option, the
Unitholder would be able to acquire three units
in the Exchange Trust for a total cost of $2,715
($2,670 for the units and $45 for the sales
charge). The remaining $375 would be returned to
the Unitholder in cash.

               CONVERSION OPTION
 Owners of units of any registered unit
investment trust sponsored by others which was
initially offered at a maximum applicable sales
charge of at least 3.0% ( a `Conversion Trust')
may elect to apply the cash proceeds of the sale
or redemption of those units directly to acquire
available units of any Exchange Trust having an
"up-front" salesload at a reduced sales charge of
$15 per Unit, per 100 Units in the case of
Exchange Trusts having a Unit price of
approximately $10, or per 1,000 Units in the case
of Exchange Trusts having a Unit price of
approximately $1, subject to the terms and
conditions applicable to the Exchange Option
(except that no secondary market is required for
Conversion Trust units). Owners of Conversion
Units will be permitted to use the cash proceeds
received from the sale or redemption of those
Units to acquire Deferred Sales Charge Units at
their then-current net asset value, with no
Initial Sales Charge imposed.  Deferred Sales
Charge Units acquired through the Conversion
Option will continue to be subject to the
deferred sales charge installments remaining on
those Units so acquired.
 To exercise this option, the owner should notify
his retail broker. He will be given a prospectus
for each series in which he indicates interest
and for which units are available. The dealer
must sell or redeem the units of the Conversion
Trust. Any dealer other than PaineWebber must
certify that the purchase of units of the
Exchange Trust is being made pursuant to and is
eligible for the Conversion Option. The dealer
will be entitled to two-thirds of the applicable
reduced sales charge. The Sponsor reserves the
right to modify, suspend or terminate the
Conversion Option at any time without further
notice, including the right to increase the
reduced sales charge applicable to this option
(but not in excess of $5 more per Unit, per 100
Units or per 1,000 Units, as applicable than the
corresponding fee then being charged for the
Exchange Option). For a description of the tax
consequences of a conversion reference is made to
the Exchange Option section herein.

              EXPENSES OF THE TRUST
 The cost of the preparation and printing of the
Certificates, the Indenture and this Prospectus,
the initial fees of the Trustee and the Trustee's
counsel, the Evaluator's fees during the initial
offering period, advertising expenses and
expenses incurred in establishing the Trust,
including legal and auditing fees, are paid by
the Sponsor and not by the Trust. The Sponsor
will receive no fee from the Trust for its
services as Sponsor.
 The Sponsor's fee, deducted only in trusts where
the Initial Date of Deposit is on or after
November 30, 1982, which is earned for portfolio
supervisory services, is based upon the aggregate
face amount of Bonds in the Trust at the
beginning of each annual period. The Sponsor's
fee, which is not to exceed the amount set forth
under "Essential Information" in Part A, may
exceed the actual costs of providing portfolio
supervisory services for this Trust, but at no
time will the total amount the Sponsor receives
for portfolio supervisory services rendered to
all series of the Municipal Bond Trust in any
calendar year exceed the aggregate cost to it of
supplying such services in such year.
 For services performed under the Indenture, the
Trustee will be paid by the Trust at the rate per
$1,000 of principal amount of Securities in the
Trust set forth under "Essential Information" in
Part A. Such compensation will be computed
monthly, quarterly or semi-annually (depending on
available plans of distribution) on the basis of
the greatest principal amount of the Securities
in the Trust at any time during the preceding
monthly or semi-annual period.
 In no event will the Trustee be paid less than
$2,000 in any one year. The Evaluator's fee for
each daily evaluation is set forth under
"Essential Information" in Part A. The fees of
the Evaluator will be payable by the Trust. See
"Essential Information" in Part A for the
estimated annual fees and expenses per Unit under
the various optional interest distribution plans.
 The Sponsor's fee is payable annually, Trustee's
fees are payable monthly, quarterly and semi-
annually (depending on available plans of
distribution) and the Evaluator's fees are
payable monthly on or before each Distribution
Date from the Interest Account, to the extent
funds are available, then from the Principal
Account. Any of such fees may be increased
without approval of the Unitholders by an amount
not exceeding a proportionate increase in the
category entitled "All Services Less Rent" in the
Consumer Price Index published by the United
States Department of Labor.
 In addition to the above, the following charges
are or may be incurred by the Trust and paid from
the Interest Account, or, to the extent funds are
not available in such Account, from the Principal
Account: (1) fees for the Trustee for
extraordinary services; (2) expenses of the
Trustee (including legal and auditing expenses)
and of counsel; (3) various governmental charges;
(4) expenses and costs of any action taken by the
Trustee to protect the Trust and the rights and
interests of the Unitholders; (5) indemnification
of the Trustee for any loss, liabilities or
expenses incurred by it in the administration of
the Trust without negligence, bad faith or
willful misconduct on its part; and (6) expenses
incurred in contacting Unitholders upon
termination of the Trust. The fees and expenses
set forth above are payable out of the Trust and
when unpaid will be secured by a lien on the
Trust.
 The accounts of certain Trusts may be audited
not less than annually by independent public
accountants selected by the Sponsor. The expenses
of the audit shall be an expense of the Trust. So
long as the Sponsor maintains a secondary market,
Sponsor will bear any audit expense which exceeds
50 cents per Unit. Unitholders covered by the
audit (if any) during the year may receive a copy
of the audited financials upon request.

DESCRIPTION OF CERTIFICATES
 Ownership of Units is evidenced by registered
Certificates, executed by the Trustee and the
Sponsor, issued in denominations of one Unit or
any integral multiple thereof. A Unitholder may
transfer its Certificate by presenting it to the
Trustee at its corporate trust office. Such
Certificate must be properly endorsed or
accompanied by a written instrument or
instruments of transfer executed by the
Unitholder or its duly authorized attorney. A
Unitholder may be required to pay $2.00 per
Certificate transferred to cover the Trustee's
costs in implementing such transfer and to pay
any tax or other governmental charge that may be
imposed in connection with any such transfer. The
Trustee is required to execute and deliver a new
Certificate in exchange and substitution for any
Certificate mutilated, destroyed, stolen or lost,
if and when the Unitholder furnishes the Trustee
with proper identification and satisfactory
indemnity, and pays such expenses as the Trustee
may reasonably incur. Any mutilated Certificate
must be presented to the Trustee before any
substitute Certificate will be issued.

STATEMENTS TO UNITHOLDERS
 With each distribution from the Interest and
Principal Accounts, the Trustee will furnish each
Unitholder with a statement setting forth the
amount being distributed from each Account
expressed as a dollar amount per Unit.
 Promptly after the end of each calendar year,
the Trustee will furnish to each person who at
any time during the calendar year was a
registered Unitholder a statement setting forth:
 1. As to the Interest Account:
 (a) the amount of interest received on the
Securities and the percentage of such amount by
states and territories in which the issuers of
the Bonds are located;
 (b) the amount paid from the Interest Account
representing accrued interest for any
Certificates redeemed;
 (c) the deductions from the Interest Account for
fees and expenses of the Trustee, the Sponsor and
the Evaluator or for other various fees, charges
or expenses relating to the Trust;
 (d) the deductions from the Interest Account for
payment into the Reserve Account; and
 (e) the net amount remaining after such payments
and deductions expressed as a total dollar amount
outstanding on the last business day of such
calendar year.
 2. As to the Principal Account:
 (a) the dates of the redemption, sale or
maturity of any of the Securities and the net
proceeds received therefrom, excluding any
portion credited to the Interest Account;
 (b) the amount paid from the Principal Account
representing the principal of any Certificates
redeemed;
 (c) the deductions from the Principal Account
for fees and expenses of the Trustee, the Sponsor
and the Evaluator or for other various fees,
charges or expenses relating to the Trust;
 (d) the deductions from the Principal Account
for payment into the Reserve Account; and
 (e) the net amount remaining after such payments
and deductions expressed as a total dollar amount
outstanding on the last business day of such
calendar year.
 3. The following information:
 (a) a list of the Securities as of the last
business day of such calendar year;
 (b) the number of Units outstanding on the last
business day of such calendar year;
 (c) the Unit Value based on the last evaluation
of the Trust made on the last business day during
such calendar year; and
 (d) the amounts actually distributed during such
calendar year from the Interest and Principal
Accounts, separately stated, expressed both as
total dollar amounts and as dollar amounts per
Unit outstanding on the Record Dates for such
distributions.

            REDEMPTION OF UNITS BY TRUSTEE
 A Unitholder who wishes to dispose of its Units
should inquire through its broker as to the
current market price for such Units prior to
making a tender for redemption to the Trustee in
order to determine if there is a market for Units
in excess of the then current Redemption Value or
Sponsor's Repurchase Price. After the initial
offering period the Redemption Value will be the
same as the Sponsor's Repurchase Price.
 During the period in which the Sponsor maintains
a secondary market for Units at the Sponsor's
Repurchase Price, the Sponsor has agreed to
repurchase any Unit presented for tender to the
Trustee for redemption no later than the close of
business on the second business day following
such presentation.
 The Trustee is irrevocably authorized in its
discretion, in lieu of redeeming Units presented
for tender at the redemption value, to sell such
Units in the over-the-counter market for the
account of a tendering Unitholder at prices which
will return to the Unitholder amounts in cash,
net after brokerage commissions, transfer taxes
and other charges, equal to or in excess of the
Redemption Value for such Units. In the event of
any such sale the Trustee will pay the net
proceeds thereof to the Unitholder on the day he
would otherwise be entitled to receive payment of
the Redemption Value.
 One or more Units represented by a Certificate
may be redeemed at the Redemption Value upon
tender of such Certificate to the Trustee at its
corporate trust office, properly endorsed or
accompanied by a written instrument of transfer
in form satisfactory to the Trustee, and executed
by the Unitholder or its authorized attorney. A
Unitholder may tender its Units for redemption at
any time after the settlement date for purchase,
whether or not it has received a definitive
Certificate. The Redemption Value per Unit is
calculated by dividing the current bid prices for
the Securities in the Trust (see "Evaluation of
the Trust") plus any money in the Principal
Account other than money required to redeem
tendered Units, by the number of Units
outstanding, plus a proportionate share of
accrued interest and undistributed interest
income on the Securities determined to the day of
tender. There is no sales charge incurred when a
Unitholder tenders his Units to the Trustee for
redemption. Subject to the payment of any
applicable tax or governmental charges, the
Redemption Value of Units redeemed by the Trustee
will be paid on the seventh calendar day
following the day of tender. If such day of
payment is not a business day, the Redemption
Value will be paid on the first business day
prior thereto.
 The Trustee may, in its discretion, and will
when so directed by the Sponsor, suspend the
right of redemption, or postpone the date of
payment of the Redemption Value, for more than
seven calendar days following the day of tender
for any period during which the New York Stock
Exchange, Inc. is closed other than for weekend
and holiday closings; or for any period during
which the Securities and Exchange Commission
determines that trading on the New York Stock
Exchange, Inc. is restricted or for any period
during which an emergency exists as a result of
which disposal or evaluation of the Securities is
not reasonably practicable; or for such other
period as the Securities and Exchange Commission
may by order permit for the protection of
Unitholders. The Trustee is not liable to any
person or in any way for any loss or damages
which may result from any such suspension or
postponement.
 Any amounts paid on redemption representing
interest will be withdrawn from the Interest
Account to the extent that funds are available
for such purpose. All other amounts paid on
redemption will be withdrawn from the Principal
Account. The Trustee is empowered to sell
Securities out of the Trust as selected by the
Sponsor in order to make funds available for the
redemption of Certificates, and, to the extent
Securities are sold for such purpose, the size
and diversity of the Trust will be reduced. Such
sales may be required at a time when Securities
would not otherwise be sold and may result in
lower prices than might otherwise be realized. In
addition, because of the minimum principal amount
in which Securities may be required to be sold,
the proceeds of such sales may exceed the amount
necessary for payment of Units redeemed. Such
excess proceeds will be distributed pro rata to
all remaining Unitholders of record.

              EVALUATION OF THE TRUST
 The Evaluator is Kenny Information Systems, a
division of J.J. Kenny Co., Inc., 65 Broadway,
New York, New York 10006.
 The value of the Trust is computed as of the
Evaluation Time shown under "Essential
Information" in Part A (1) on each June 30 and
December 31 (or the last business day prior
thereto), (2) on each business day as long as the
Sponsor is maintaining a bid in the secondary
market, (3) on the day on which any Unit is
tendered for redemption and (4) on any other day
desired by the Sponsor or the Trustee, by adding:
 1. The aggregate value of Securities in the
Trust, as determined by the Evaluator:
 (a) on the basis of current bid prices for the
Securities,
 (b) on the basis of current bid prices for
comparable bonds, if bid prices are not available
for any of the Securities,
 (c) by determining the value of the Securities
on the bid side of the market by appraisal, or
 (d) by any combination of the above;
 2. Money on hand in the Trust, other than money
deposited to purchase Securities or money
credited to the Principal Account which is
required to redeem tendered Units; and
 3. Accrued but unpaid interest on the Securities
at the close of business on the date of such
Evaluation.
 The Trustee will deduct from the resulting
figure: amounts representing any applicable taxes
or governmental charges payable by the Trust for
the purpose of making an addition to the Reserve
Account; amounts representing estimated accrued
expenses of the Trust; amounts representing
unpaid fees of the Trustee, the Sponsor and the
Evaluator; and cash held for distribution to
Unitholders of record as of the business day
prior to the Evaluation being made on the days or
dates set forth above.
 For the purpose of the redemption of Units, the
value per Unit is computed by the Trustee by
dividing the result of the above computation by
the total number of Units outstanding on the date
of such Evaluation.

COMPARISON OF PUBLIC OFFERING PRICE AND REDEMPTION VALUE
 While the Public Offering Price of Units during
the initial offering period is determined on the
basis of the current offering prices of the
Securities, the Public Offering Price of Units in
the secondary market and the Redemption Value is
determined on the basis of the current bid prices
of such Securities. On the date of the "Essential
Information" page, the Public Offering Price per
Unit (which figure includes the sales charge)
exceeded the Redemption Value by the amount shown
under "Essential Information" in Part A. The
difference between the bid and offering prices of
the Securities is expected to average 1-1/2% to
2% of principal amount. This difference may vary
between 3% or more of principal amount for
inactively traded Securities and as little as 1/2
of 1% for actively traded Securities. For this
reason and others, including the fact that the
Public Offering Price includes the sales charge,
the amount realized by a Unitholder upon
redemption of Units may be less than the price
paid by the Unitholder for such Units.

           SUPERVISION OF TRUST INVESTMENTS
 The acquisition by the Trust of any securities
other than the Securities initially deposited is
prohibited by the Indenture. The Sponsor may
direct the Trustee to sell or liquidate any of
the Securities upon the happening of any of the
following events (except for the limited right to
replace securities in the case of a fail):
 1. Default by an issuer in the payment of
principal of or interest on such Securities, or
any other outstanding obligations of such issuer,
when due and payable,
 2. Institution of legal proceedings seeking to
restrain or enjoin the payment of any of the
Securities or attacking their validity,
 3. A breach of a covenant or warranty which
could adversely affect the payment of debt
service on the Securities,
 4. In the case of revenue bonds, if the
revenues, based upon official reports, fall
substantially below the estimated revenues
calculated to be necessary to pay principal of
and interest on the Bonds,
 5. A decline in market price, or such other
market or credit factor, as in the opinion of the
Sponsor would make retention of any of the
Securities detrimental to the Unitholders, or
 6. In the event that any of the Bonds are the
subject of an advance refunding.
 In addition, if a default in the payment of
principal of or interest on any of the Securities
occurs and the Sponsor fails to instruct the
Trustee to sell or hold such Securities within
thirty days after notification by the Trustee to
the Sponsor of such default, the Indenture
provides that the Trustee will sell the defaulted
Securities promptly. The Trustee will not be
liable or responsible in any way for depreciation
or loss incurred by reason of any sale made by it
either pursuant to a direction of the Sponsor or
by reason of a failure of the Sponsor to give any
such direction.
 The Sponsor is required to instruct the Trustee
to reject any offer made by an issuer of any of
the Bonds to issue new obligations in exchange
and substitution for any of the Bonds pursuant to
a refunding or refinancing plan; however, the
Sponsor may instruct the Trustee to accept or
reject such an offer or to take any other action
with respect thereto as the Sponsor deems proper
if the issuer is in default with respect to the
Securities or the issuer will, in the written
opinion of the Sponsor, probably default with
respect to the Bonds in the reasonably
foreseeable future.
 Any obligations received by the Trust in the
event of such an exchange or substitution will be
held by the Trustee and will be subject to the
terms and conditions of the Indenture to the same
extent as the Securities originally deposited.
Within five days after any exchange and deposit,
notice of such will be mailed by the Trustee to
each registered Unitholder, which identifies the
Securities eliminated and the Securities
substituted.

             ADMINISTRATION OF THE TRUST
 Records and Accounts: Pursuant to the Indenture,
the Trustee is required to keep proper books of
record and account of all transactions relating
to the Trust at its office. Such records will
include the name and address of every Unitholder,
a list of the Certificate numbers and the number
of Units of each Certificate issued to
Unitholders. The Trustee is also required to keep
a certified copy or duplicate original of the
Indenture and a current list of Securities held
in the Trust on file at its office which will be
open to inspection by any Unitholder during usual
business hours.
 The Trustee is required to make annual or other
reports as may from time to time be required
under any applicable state or Federal statute,
rule or regulation.
 Successor Trustee: Under the Indenture, the
Trustee may resign and be discharged of the Trust
created by the Indenture by executing a notice of
resignation in writing and filing it with the
Sponsor. The resigning Trustee must also mail a
copy of the notice of resignation to all
Unitholders then of record, not less than sixty
days before the effective resignation date
specified in such notice. Such resignation will
become effective only upon the appointment of and
the acceptance of the Trust by a successor
Trustee. The Sponsor, upon receiving notice of
such resignation, is obligated to appoint a
successor Trustee promptly.
 If within thirty days after notice of
resignation has been received by the Sponsor, no
successor Trustee has been appointed or, if
appointed, has not accepted the appointment, the
resigning Trustee may apply to a court of
competent jurisdiction for the appointment of a
successor. In case the Trustee becomes incapable
of acting as such or is adjudged a bankrupt or is
taken over by any public authority, the Sponsor
may discharge the Trustee and appoint a successor
Trustee as provided in the Indenture. Notice of
such discharge and appointment shall be mailed to
each Unitholder by the Sponsor.
 Upon a successor Trustee's execution of a
written acceptance of an appointment as Trustee
for the Trust, such successor Trustee will become
vested with all the rights, powers, duties and
obligations of the original Trustee.
 A successor Trustee is required to be a
corporation organized and doing business under
the laws of the United States or of the State of
New York; to be authorized under such laws to
exercise corporate trust powers; to have at all
times an aggregate capital, surplus and undivided
profit of not less than $5,000,000; and to have
its principal office in New York City.
 Successor Sponsor: If at any time the Sponsor
shall fail to undertake or perform or become
incapable of undertaking or performing any of the
duties which by the terms of the Indenture are
required of it to be undertaken or performed, or
if the Sponsor resigns, the Trustee may either
appoint a successor Sponsor or Sponsors as will
be satisfactory to the Trustee or it may
terminate the Indenture and liquidate the Trust.
Any successor Sponsor may be compensated at rates
deemed by the Trustee to be reasonable.
 The dissolution of the Sponsor or its ceasing to
exist as a legal entity from, or for, any cause
whatsoever will not cause the termination of the
Indenture or the Trust unless the Trustee deems
termination to be in the best interests of
Unitholders.
 Successor Evaluator: The Evaluator may resign or
may be removed by the Sponsor or the Trustee, and
the Sponsor and the Trustee are to use their best
efforts to appoint a satisfactory successor. Such
resignation or removal will become effective upon
the acceptance of appointment by a successor
Evaluator. If upon resignation of the Evaluator
no successor has accepted appointment within
thirty days after notice of resignation, the
Evaluator may apply to a court of competent
jurisdiction for the appointment of a successor
Evaluator. Notice of such resignation or removal
and appointment will be mailed by the Trustee to
each Unitholder.

LIMITATION OF LIABILITIES
 The Sponsor: The Indenture provides that the
Sponsor will not be liable to the Trustee, the
Trust or the Unitholders for taking any action or
for refraining from taking any action made in
good faith or for errors in judgment, but will be
liable only for its own willful misfeasance, bad
faith, gross negligence or willful disregard of
its duties. The Sponsor will not be liable or
responsible in any way for depreciation or loss
incurred by reason of the sale of any Securities
in the Trust.
 The Trustee: The Indenture provides that the
Trustee will not be liable for any action taken
in good faith in reliance on properly executed
documents or for the disposition of moneys,
Securities or Certificates, except by reason of
its own gross negligence, bad faith or willful
misconduct, nor will the Trustee be liable or
responsible in any way for depreciation or loss
incurred by reason of the sale by the Trustee of
any Securities in the Trust. In the event of the
failure of the Sponsor to act, the Trustee may
act and will not be liable for any such action
taken by it in good faith. The Trustee will not
be personally liable for any taxes or other
governmental charges imposed upon or in respect
of the Securities or upon the interest thereon or
upon it as Trustee or upon or in respect of the
Trust which the Trustee may be required to pay
under any present or future law of the United
States of America or of any other taxing
authority having jurisdiction. In addition, the
Indenture contains other customary provisions
limiting the liability of the Trustee. The
Trustee will be indemnified and held harmless
against any loss or liability accruing to it
without negligence, bad faith or willful
misconduct on its part, arising out of or in
connection with its acceptance or administration
of the Trust, including the costs and expenses
(including counsel fees) of defending itself
against any claim of liability.
 The Evaluator: The Trustee, Sponsor, and
Unitholders may rely on any evaluation furnished
by the Evaluator and will have no responsibility
for the accuracy thereof. The Indenture provides
that the determinations made by the Evaluator
will be made in good faith upon the basis of the
best information available to it; provided,
however, that the Evaluator will be under no
liability to the Trustee, Sponsor or Unitholders
for errors in judgment, but will be liable only
for its gross negligence, lack of good faith or
willful misconduct.

             AMENDMENT OF THE INDENTURE
 The Indenture may be amended by the Trustee and
the Sponsor without the consent of any of the
Unitholders to cure any ambiguity or to correct
or supplement any provision thereof which may be
defective or inconsistent or to make such other
provisions as will not adversely affect the
interest of the Unitholders; provided, however,
that after the deposit of the Securities the
Indenture may not be amended to increase the
number of Units issued thereunder or to permit
the deposit or acquisition of securities either
in addition to or in substitution for any of the
Securities initially deposited in the Trust,
except for the substitution of certain refunding
securities for the Securities. The Trustee will
promptly notify Unitholders of the substance of
any such amendment.

              RIGHTS OF UNITHOLDERS
 A Unitholder may at any time tender his
Certificate to the Trustee for redemption.
 The death or incapacity of any Unitholder will
not operate to terminate the Trust nor entitle
his legal representatives or heirs to claim an
accounting or to take any action or proceeding in
any court for a partition or winding up of the
Trust.
 No Unitholder will have the right to vote
concerning the Trust, except with respect to
termination, or in any manner control the
operation and management of the Trust, nor shall
any Unitholder ever be liable to any other person
by reason of any action taken by the Sponsor or
the Trustee.

             TERMINATION OF THE TRUST
 The Indenture provides that the Trust will
terminate upon the maturity, redemption, sale or
other disposition of the last of the Securities
held in the Trust. If the value of the Trust as
shown by any evaluation is less than twenty per
cent (20%) of the par value of the Securities
originally deposited in the Trust, the Trustee
may in its discretion, and will when so directed
by the Sponsor, terminate the Trust. The Trust
may also be terminated at any time by the written
consent of 100% of the Unitholders or by the
Trustee upon the resignation or removal of the
Sponsor if the Trustee determines termination to
be in the best interest of the Unitholders. In no
event will the Trust continue beyond the
Mandatory Termination Date.
 Upon termination, the Trustee will sell the
Securities then held in the Trust and credit the
moneys derived from such sale to the Principal
Account and the Interest Account. The Trustee
will then, after deduction of any fees and
expenses of the Trust and payment into the
Reserve Account of any amount required for taxes
or other governmental charges that may be payable
by the Trust, distribute to each Unitholder, upon
surrender for cancellation of his Certificate
after due notice of such termination, such
Unitholder's pro rata share in the Interest and
Principal Accounts. The sale of Securities in the
Trust upon termination may result in a lower
amount than might otherwise be realized if such
sale were not required at such time. For this
reason, among others, the amount realized by a
Unitholder upon termination may be less than the
principal amount of Securities represented by the
Units held by such Unitholder.

                  SPONSOR
 The Sponsor, PaineWebber Incorporated, is a
corporation organized under the laws of the State
of Delaware. The Sponsor is a member firm of the
New York Stock Exchange, Inc. as well as other
major securities and commodities exchanges and is
a member of the National Association of
Securities Dealers, Inc. The Sponsor is engaged
in a security and commodity brokerage business as
well as underwriting and distributing new issues.
The Sponsor also acts as a dealer in unlisted
securities and municipal bonds and, in addition
to participating as a member of various selling
groups or as an agent of other investment
companies, executes orders on behalf of
investment companies for the purchase and sale of
securities of such companies and sells securities
to such companies in its capacity as a broker or
dealer in securities.

LEGAL OPINION
 The legality of the Units offered hereby has
been passed upon by Carter, Ledyard & Milburn, 2
Wall Street, New York, New York, as counsel for
the Sponsor.

              INDEPENDENT AUDITORS
 The financial statements, including the schedule
of investments, of the Trust included in Part A
of this Prospectus have been audited by Ernst &
Young LLP, independent auditors, for the period
indicated in their report appearing herein. The
financial statements audited by Ernst & Young LLP
have been included in reliance on their report
given on their authority as experts in accounting
and auditing.
                BOND RATINGS*

Standard & Poor's Corporation
 AAA-Debt rated AAA has the highest rating
assigned by Standard & Poor's. Capacity to pay
interest and repay principal is extremely strong.
 AA-Debt rated AA has a very strong capacity to
pay interest and repay principal and differs from
the highest rated issues only in small degree.
 A-Debt rated A has a strong capacity to pay
interest and repay principal although it is
somewhat more susceptible to the adverse effects
of changes in circumstances and economic
conditions than debt in higher rated categories.
 BBB-Debt rated BBB is regarded as having an
adequate capacity to pay interest and repay
principal. Whereas it normally exhibits adequate
protection parameters, adverse economic
conditions or changing circumstances are more
likely to lead to a weakened capacity to pay
interest and repay principal for debt in this
category than in higher rated categories.
 BB, B, CCC, CC-Debt rated BB, B, CCC, and CC is
regarded, on balance, as predominately
speculative with respect to capacity to pay
interest and repay principal in accordance with
the terms of the obligation. BB indicates the
lowest degree of speculation and CC the highest
degree of speculation. While such debt will
likely have some quality and protective
characteristics, these are outweighed by large
uncertainties or major risk exposures to adverse
conditions.
 The ratings from AA to CCC may be modified by
the addition of a plus or minus sign to show
relative standing within the major rating
categories.
 A provisional rating, indicated by "p" following
a rating, assumes the successful completion of
the project being financed by the issuance of the
debt being rated and indicates that payment of
debt service requirements is largely or entirely
dependent upon the successful and timely
completion of the project. This rating, however,
while addressing credit quality subsequent to
completion of the project, makes no comment on
the likelihood of, or the risk of default upon
failure of, such completion.
 NR-Securities which, while not rated by Standard
& Poor's or Moody's, have been determined by the
trusts sponsor to be of investment grade quality.

Moody's Investors Service, Inc.
 Aaa-Bonds which are rated Aaa are judged to be
the best quality. They carry the smallest degree
of investment risk and are generally referred to
as "gilt edge". Interest payments are protected
by a large or by an exceptionally stable margin
and principal is secure. While the various
protective elements are likely to change, such
changes as can be visualized are most unlikely to
impair the fundamentally strong position of such
issues.
 Aa-Bonds which are rated Aa are judged to be of
high quality by all standards. Together with the
Aaa group they comprise what are generally known
as high-grade bonds. They are rated lower than
the best bonds because margins of protection may
not be as large as in Aaa securities or
fluctuation of protective elements may be of
greater amplitude or there may be other elements
present which make the long-term risks appear
somewhat larger than in Aaa securities.
 A-Bonds which are rated A possess many favorable
investment attributes and are to be considered as
upper medium grade obligations. Factors giving
security to principal and interest are considered
adequate, but elements may be present which
suggest a susceptibility to impairment sometime
in the future.
 Baa-Bonds which are rated Baa are considered as
medium grade obligations; i.e., they are neither
highly protected nor poorly secured. Interest
payments and principal security appear adequate
for the present but certain protective elements
may be lacking or may be characteristically
unreliable over any great length of time. Such
bonds lack outstanding investment characteristics
and in fact have speculative characteristics as
well.
 Ba-Bonds which are rated Ba are judged to have
speculative elements; their future cannot be
considered as well assured. Often the protection
of interest and principal payments may be very
moderate and thereby not well safeguarded during
both good and bad times over the future.
Uncertainty of position characterizes bonds in
this class.
 B-Bonds which are rated B generally lack the
characteristics of a desirable investment.
Assurance of interest and principal payments or
of maintenance of other terms of the contract
over any long period of time may be small.

_______________
 *As described by the rating agencies.

 Caa-Bonds which are rated Caa are in poor
standing. Such issues may be in default or there
may be present elements of danger with respect to
principal or interest.
 Ca-Bonds which are rated Ca represent
obligations which are speculative in a high
degree. Such issues are often in default or have
other marked shortcomings.
 C-Bonds which are rated C are the lowest rated
class of bonds and issues so rated can be
regarded as having extremely poor prospects of
ever attaining any real investment standing.
 Rating symbols may include numerical modifiers
1, 2 or 3. The numerical modifier 1 indicates
that the security ranks at the high end, 2 in the
mid-range, and 3 nearer the low end of the
generic category. These modifiers of rating
symbols Aa, A and Baa are to give investors a
more precise indication of relative debt quality
in each of the historically defined categories.
 Conditional ratings, indicated by "Con" are
given to bonds for which the security depends
upon the completion of some act or the
fulfillment of some condition. These are bonds
secured by (a) earnings of projects under
construction, (b) earnings of projects unseasoned
in operating experience, (c) rentals which begin
when facilities are completed, or (d) payments to
which some other limiting condition attaches. A
parenthetical rating denotes probable credit
stature upon completion of construction or
elimination of basis of such condition.

                       CONTENTS OF REGISTRATION STATEMENT
          This registration statement comprises the following
  documents:
          The facing sheet.
          The Prospectus.
          The signatures.
          The following exhibits:
          EX-99.C1     Opinion of Counsel as to legality of securities
                       being registered
          EX-99.C2     Consent of Kenny Information Systems
          EX-99.C3     Consent of Independent Auditors
                             FINANCIAL STATEMENTS
          1.      Statement of Condition of the Trust as shown in
                  the current Prospectus for this series.
          2.      Financial Statements of the Depositor.
                  PaineWebber Incorporated - Financial Statements
                  incorporated by reference to Form 10-k and
                  Form 10-Q (File No. 1-7367) respectively.
  SIGNATURES
  Pursuant to the requirements of the Securities Act of 1933, the
  registrant, The Municipal Bond Trust, Series 228 certifies that it meets
  all of the requirements for effectiveness of this Registration
  Statement pursuant to Rule 485(b) under the Securities Act of 1933
  and has duly caused this registration statement to be signed on its
  behalf by the undersigned thereunto duly authorized, and its seal to
  be hereunto affixed and attested, all in the City of New York, and the
  State of New York on the 26th day of January, 2000.
                      THE MUNICIPAL BOND TRUST, SERIES 228
                                  (Registrant)
                              By: PaineWebber Incorporated
                                  (Depositor)
                              /s/ ROBERT E. HOLLEY
                                  Robert E. Holley
                                  Senior Vice President
  Pursuant to the requirements of the Securities Act of 1933, this
  Registration Statement has been signed on behalf of PaineWebber
  Incorporated, the Depositor, by the following persons in the
  following capacities and in the City of New York, and State of New
  York, on this 26th day of January, 2000.
  PAINEWEBBER INCORPORATED
       Name                        Office
  Donald B. Marron            Chairman, Chief Executive Officer
                              and Director of PaineWebber Incorporated*
  Regina A. Dolan             Executive Vice President,
                              Chief Financial Officer and
                              Director of PaineWebber Incorporated*
  Joseph J. Grano, Jr.        President and
                              Director of PaineWebber Incorporated*
  Steve P. Baum               Executive Vice President and
                              Director of PaineWebber Incorporated*
  Robert H. Silver            Executive Vice President and
                              Director of PaineWebber Incorporated*
  Mark B. Sutton              Executive Vice President and
                              Director of PaineWebber Incorporated*
  Margo N. Alexander          Executive Vice President and
                              Director of PaineWebber Incorporated*
  Terry L. Atkinson           Managing Director and
                              Director of PaineWebber Incorporated*
  Brian M. Barefoot           Executive Vice President and
                              Director of PaineWebber Incorporated*
  Michael Culp                Managing Director and
                              Director of PaineWebber Incorporated*
  Edward M. Kerschner         Managing Director and
                              Director of PaineWebber Incorporated*
  James P. MacGilvray         Executive Vice President and
                              Director of PaineWebber Incorporated*
                              By:/s/ ROBERT E. HOLLEY
                                    Attorney-in-fact*
  *  Executed copies of the powers of attorney have been previously
     filed with the Securities and Exchange Commission with the Post
     Effective Amendment to the Registration Statement File No. 2-61279.


  January 26, 2000
  PaineWebber Incorporated
  1200 Harbor Blvd.
  Weehawken, New Jersey 07087
  Ladies and Gentlemen:
  We have served as counsel for PaineWebber Incorporated as
  sponsor and depositor (the "Depositor") of
  The Municipal Bond Trust, Series 228
 (hereinafter referred to as the "Trust").

  It is proposed that Post-Effective Amendment No. 9 to the
  Trust's registration statement ("Post-Effective Amendment No. 9")
  will be filed with the Securities and Exchange Commission and
  dated as of the date hereof in connection with the continued
  issuance by the Trust of an indefinite number of units of
  fractional undivided interest in the Trust (hereinafter referred
  to as the "Units") pursuant to Rule 24f-2 promulgated under the
  provisions of the Investment Company Act of 1940, as amended.
  In this regard, we have examined executed originals or copies of the
  following:
  (a)  The Restated Certificate of Incorporation, as amended, and the
       By-Laws of the Depositor, as amended;
  (b)  Resolutions of the Board of Directors of the Depositor adopted on
       December 3, 1971 relating to the Trust and the sale of the Units;
  (c)  Resolutions of the Executive Committee of the Depositor adopted
       on September 24, 1984;
  (d)  Powers of Attorney referred to in the Amendment;
  (e)  Post-Effective Amendment No. 9 to the Registration Statement on
       Form S-6 (File No. 33-34396) to be filed with the Securities and
       Exchange Commission (the "Commission") in accordance with
       the Securities Act of 1933, as amended, and the rules and
       regulations of the Commission promulgated thereunder
       (collectively, the "1933 Act") proposed to be filed on or about the
       date hereof (the "Amendment");
  (f)  The Notification of Registration of the Trust filed with the
       Commission under the Investment Company Act of 1940, as
       amended (collectively, the "1940 Act") on Form N-8A, as
       amended;
  (g)  The registration of the Trust filed with the Commission under the
       1940 Act on Form N-8B-2 (File No. 811-2599), as amended;
  (h)  The prospectus included in the Amendment (the "Prospectus");
  (i)  The Standard Terms and Conditions of the Trust dated as of
       August 1, 1990, as amended, among the Depositor,
       Investors Bank & Trust Company and Bank One Corporation
       (the "Co-Trustees"), and Standard &
       Poor's Corporation and Kenny Information Systems, a division of
       J.J. Kenny Co., Inc. (the "Evaluator") (the "Standard Terms");
  (j)  The Trust Indenture dated as of the Initial Date of Deposit, among
       the Depositor, the Co-Trustees and the Evaluator (the "Trust
       Indenture" and, collectively with the Standard Terms, the
       "Indenture and Agreement");
  (k)  The form of certificate of ownership for units (the "Certificate") to
       be issued under the Indenture and Agreement; and
  (l)  Such other pertinent records and documents as we have deemed
       necessary.
       With your permission, in such examination, we have assumed
  the following: (a) the authenticity of original documents and the
  genuineness of all signatures; (b) the conformity to the originals of
  all documents submitted to us as copies; (c) the truth, accuracy,
  and completeness of the information, representations, and warranties
  contained in the records, documents, instruments and certificates we
  have reviewed; (d) except as specifically covered in the opinions set
  forth below, the due authorization, execution, and delivery on behalf
  of the respective parties thereto of documents referred to herein and
  the legal, valid, and binding effect thereof on such parties; and (e)
  the absence of any evidence extrinsic to the provisions of the written
  agreement(s) between the parties that the parties intended a
  meaning contrary to that expressed by those provisions. However,
  we have not examined the securities deposited pursuant to the
  Indenture and Agreement (the "Securities") nor the contracts for the
  Securities.
       We express no opinion as to matters of law in jurisdictions other
  than the State of New York (except "Blue Sky" laws) and the federal laws
  of the United States, except to the extent necessary to render the
  opinion as to the Depositor in paragraph (i) below with respect to
  Delaware law.  As you know we are not licensed to practice law in the
  State of Delaware, and our opinion in paragraph (i) and (iii) as to
  Delaware law is based solely on review of the official statutes of the
  State of Delaware.
       Based upon such examination, and having regard for legal
  considerations which we deem relevant, we are of the opinion that:
  (i)  The Depositor is a corporation duly organized, validly existing, and
       in good standing under the laws of the State of Delaware with full
       corporate power to conduct its business as described in the
       Prospectus;
  (ii) The Depositor is duly qualified as a foreign corporation and is in
       good standing as such within the State of New York;
  (iii)The terms and provisions of the Units conform in all material
       respects to the description thereof contained in the Prospectus;
  (iv) The consummation of the transactions contemplated under the
       Indenture and Agreement and the fulfillment of the terms thereof
       will not be in violation of the Depositor's Restated Certificate of
       Incorporation, as amended, or By-Laws, as amended and will not
       conflict with any applicable laws or regulations applicable to the
       Depositor in effect on the date hereof; and
  (v)  The Certificates to be issued by the Trust, when duly executed by
       the Depositor and the Trustee in accordance with the Indenture
       and Agreement, upon delivery against payment therefor as
       described in the Prospectus will constitute fractional undivided
       interests in the Trust enforceable against the Trust in accordance
       with their terms, will be entitled to the benefits of the Indenture
       and Agreement and will be fully paid and non-assessable.
  Our opinion that any document is valid, binding, or enforceable in
  accordance with its terms is qualified as to:
  (a)  limitations imposed by bankruptcy, insolvency, reorganization,
       arrangement, fraudulent conveyance, moratorium, or other laws
       relating to or affecting the enforcement of creditors' rights
       generally;
  (b)  rights to indemnification and contribution which may be limited by
       applicable law or equitable principles; and
  (c)  general principles of equity, regardless of whether such
       enforceability is considered in a proceeding in equity or at law.
       We hereby represent that the Amendment contains no disclosure
  which would render it ineligible to become effective immediately
  upon filing pursuant to paragraph (b) of Rule 485 of the
  Commission.
       We hereby consent to the filing of this opinion as an exhibit to
  the Amendment and to the use of our name wherever it appears in
  the Amendment and the Prospectus.
  Very truly yours,
  /s/ CARTER, LEDYARD & MILBURN

  KENNY INFORMATION SYSTEMS
  (A Division of J.J. Kenny Co., Inc.)
  January 26, 2000
  PaineWebber Incorporated
  Unit Trust Department
  1200 Harbor Blvd.
  Weehawken, New Jersey 07087
  RE: THE MUNICIPAL BOND TRUST, SERIES 228
  Gentlemen:
  We have examined the post-effective Amendment to the Registration
  Statement File No. 33-34396 for the above-captioned trust. We
  hereby acknowledge that Kenny Information Systems, a division of
  J.J. Kenny Co., Inc. is currently acting as the evaluator for the trust.
  We hereby consent to the use in the Amendment of the reference to
  Kenny Information Systems, a division of J.J. Kenny Co. Inc., as
  evaluator.
  In addition, we hereby confirm that the ratings indicated in the
  above-referenced Amendment to the Registration Statement for the
  respective bonds comprising the trust portfolio are the ratings
  currently indicated in our KENNYBASE database.
  You are hereby authorized to file a copy of this letter with the
  Securities and Exchange Commission.
                              Sincerely,
                              /s/ JOHN R. FITZGERALD
                              John R. Fitzgerald
                              Senior Vice President

  INDEPENDENT AUDITORS' CONSENT
  We consent to the reference to our firm under the caption
  "Independent Auditors" and to the use of our report dated January 10, 2000,
  in the Registration Statement and related Prospectus of
  The Municipal Bond Trust, Series 228.
  /s/ ERNST & YOUNG LLP
  New York, New York
  January 25, 2000


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