<PAGE>
As filed with the Securities and Exchange Commission on April 30, 1997
Registration No. 33-64843
==========================================================================
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
___________________
POST-EFFECTIVE AMENDMENT NO. 1 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:
NATIONAL MUNICIPAL TRUST,
Series 183
B. Name of depositor:
PRUDENTIAL SECURITIES INCORPORATED
C. Complete address of depositor's principal executive office:
One Seaport Plaza
199 Water Street
New York, New York 10292
D. Name and complete address of agent for service:
Copy to:
LEE B. SPENCER, JR., ESQ. KENNETH W. ORCE, ESQ.
PRUDENTIAL SECURITIES INCORPORATED CAHILL GORDON & REINDEL
One Seaport Plaza 80 Pine Street
199 Water Street New York, New York 10005
New York, New York 10292
It is proposed that this filing will become effective (check appropriate
box.)
___
/ / immediately upon filing on (date) pursuant to paragraph (b);
___
/X / on April 30, 1997 pursuant to paragraph (b);
___
/__/ 60 days after filing pursuant to paragraph (a);
___
/__/ on (date) pursuant to paragraph (a) of rule 485.
<PAGE>
CUSIP: 63701J694R MAIL CODE A
Prospectus--PART A
NOTE: PART A of this Prospectus may not be distributed unless accompanied by
Part B.
- --------------------------------------------------------------------------------
NATIONAL MUNICIPAL TRUST
NMT Series 183
- --------------------------------------------------------------------------------
The initial public offering of Units in the Trust has been completed. The Units
offered hereby are issued and outstanding Units which have been acquired by the
Sponsor either by purchase from the Trustee of Units tendered for redemption or
in the secondary market.
97.7% of the aggregate principal amount of the Securities consists of investment
grade state, municipal and public authority debt obligations ('Long-Term
Securities') and 2.3% of the aggregate principal amount of the Securities
consists of short term municipal securities (the 'DSC Payment Securities'), the
principal and interest from which will be used in payment of the deferred sales
charge ('DSC').
The objectives of the Trust are (1) the providing of interest income which, in
the opinion of counsel is, under existing law, excludable from gross income for
Federal income tax purposes (except in certain instances depending on the Unit
Holder), through investment in a fixed portfolio consisting primarily of
long-term debt obligations issued on behalf of states, counties, municipalities,
authorities and political subdivisions thereof, and territories, or possessions
of the United States, and the conservation of capital and (2) the payment of the
DSC from the interest payments, if any, on, and the principal paid at the
maturity of, the DSC Payment Securities. There is, of course, no guarantee that
the Trust's objectives will be achieved. The value of the Units of the Trust
will fluctuate with the value of the portfolio of underlying Securities. The
Securities in the Trust are not insured by The Prudential Insurance Company of
America. The Prospectus indicates the extent to which interest income of the
Trust is subject to alternative minimum tax under the Internal Revenue Code of
1986, as amended. See 'Schedule of Portfolio Securities' and 'Portfolio
Summary.'
Minimum Purchase : 1 Unit.
PUBLIC OFFERING PRICE of the Units of the Trust is equal to the aggregate bid
side evaluation of the underlying Securities in the Trust's Portfolio divided by
the number of Units outstanding in such Trust, plus a sales charge as set forth
in the table herein. (See Part B--'Public Offering of Units--Volume Discount.')
Units are offered at the Public Offering Price plus accrued interest. (See Part
B--'Public Offering of Units.')
- --------------------------------------------------------------------------------
Sponsor:
Prudential Securities (LOGO)
- --------------------------------------------------------------------------------
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS
A CRIMINAL OFFENSE.
- --------------------------------------------------------------------------------
Please read and retain Prospectus dated
this Prospectus for future reference April 30, 1997
<PAGE>
NATIONAL MUNICIPAL TRUST
Series 183
- --------------------------------------------------------------------------------
TABLE OF CONTENTS
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
Page
<S> <C> <C>
Summary.................................................................................. Part A A-i
Summary of Essential Information......................................................... A-iii
Independent Auditors' Report............................................................. A-1
Statement of Financial Condition......................................................... A-2
Schedule of Portfolio Securities......................................................... A-7
The Trust................................................................................ Part B 1
Portfolio Summary................................................................... 2
Insurance on the Securities in the Portfolio of an Insured Trust--General........... 9
Insurance on the Securities in the Portfolio of an Insured Trust--Insurers.......... 9
Objectives and Securities Selection................................................. 14
Estimated Annual Income Per Unit.................................................... 14
Tax Status............................................................................... 15
Public Offering of Units................................................................. 18
Public Offering Price............................................................... 18
Public Distribution................................................................. 19
Secondary Market.................................................................... 20
Sponsor's and Underwriters' Profits................................................. 20
Secondary Market Sales Charge....................................................... 20
Volume Discount..................................................................... 21
Employee Discount................................................................... 21
Exchange Option.......................................................................... 21
Tax Consequences.................................................................... 23
Reinvestment Program..................................................................... 23
Expenses and Charges..................................................................... 23
Expenses............................................................................ 23
Fees................................................................................ 23
Other Charges....................................................................... 25
Rights of Unit Holders................................................................... 25
Certificates........................................................................ 25
Distribution of Interest and Principal.............................................. 25
Reports and Records................................................................. 27
Redemption.......................................................................... 27
Sponsor.................................................................................. 28
Limitations on Liability............................................................ 29
Responsibility...................................................................... 30
Resignation......................................................................... 30
Trustee.................................................................................. 30
Limitations on Liability............................................................ 31
Responsibility...................................................................... 31
Resignation......................................................................... 31
Evaluator................................................................................ 31
Limitations on Liability............................................................ 31
Responsibility...................................................................... 31
Resignation......................................................................... 31
Amendment and Termination of the Indenture............................................... 32
Amendment........................................................................... 32
Termination......................................................................... 32
Legal Opinions........................................................................... 32
Auditors................................................................................. 32
Bond Ratings............................................................................. 32
</TABLE>
<PAGE>
- --------------------------------------------------------------------------------
This Prospectus does not contain all of the information with respect to the
investment company set forth in its registration statement and exhibits relating
thereto which have been filed with the Securities and Exchange Commission,
Washington, D.C. under the Securities Act of 1933 and the Investment Company Act
of 1940, and to which reference is hereby made.
- --------------------------------------------------------------------------------
No person is authorized to give any information or to make any representations
with respect to this investment company not contained herein; and any
information or representations not contained herein must not be relied upon as
having been authorized. This Prospectus does not constitute an offer to sell, or
a solicitation of an offer to buy, securities in any state to any person to whom
it is not lawful to make such offer in such state.
- --------------------------------------------------------------------------------
SUMMARY
NATIONAL MUNICIPAL TRUST, Series 183 (the 'National Trust' or the 'Trust' as
the context requires) is composed of interest-bearing municipal bonds (the
'Securities'). The interest on these bonds, in the opinion of bond counsel to
the issuing governmental authorities is, under existing law, excludable from
gross income for Federal income tax purposes (except in certain instances
depending on the Unit Holder). The Securities in the Trust were, as of the Date
of Deposit rated in the category of 'A' or better by Standard & Poor's
Corporation or by Moody's Investors Service. (See Part B--'Bond Ratings.')
MONTHLY DISTRIBUTIONS of principal, premium, if any, and interest received
by the Trust will be made on or shortly after the twenty-fifth day of each month
to Unit Holders of record as of the immediately preceding Record Date. In some
cases, distribution on a semi-annual basis may be available. (See Part
B--'Rights of Unit Holders--Distribution of Interest and Principal.')
Alternatively, Unit Holders may elect to have their distributions reinvested in
the Reinvestment Program of the Sponsor, as, if and when such program is
available to Unit Holders. (See Part B--'Reinvestment Program.')
THE SPONSOR, although not obligated to do so, presently intends to maintain
a secondary market for the Units in the Trust based on the aggregate bid side
evaluation of the underlying Securities, as more fully described under Part
B--'Public Offering of Units--Secondary Market.' If such a market is not
maintained, a Unit Holder may be able to dispose of his Units only through
redemption at prices based on the aggregate bid side evaluation of the
underlying Securities. The Sponsor's Repurchase Price, like the Redemption
Price, will reflect the deduction from the value of the underlying Securities of
any unpaid amount of the Deferred Sales Charge and to the extent the entire
Deferred Sales Charge has not been so deducted or paid at the time of redemption
or sale of the Units, the remainder will be deducted from the proceeds of
redemption or sale. (See Part B--'Rights of Unit
Holders--Redemption--Computation of Redemption Price per Unit.')
RISK CONSIDERATIONS. An investment in Units of the Trust should be made with
an understanding of the risks which an investment in fixed rate long-term and
short-term debt obligations may entail, including the risk that the value of the
Units will decline with increases in interest rates. (See Part B--'The
Trust--Portfolio Summary.') In the event of a default by the issuer of a DSC
Payment Security, other assets of the Trust would be utilized to pay the
deferred sales charge, and the sale of Securities other than the DSC Payment
Securities may be required. The ratings of the Securities set forth in Part
A--'Schedule of Portfolio Securities' may have declined due to, among other
factors, a decline in creditworthiness of the issuer of said Securities.
Note: In Part B 'Trustee' the location of the unit investment trust office
of The Chase Manhattan Bank is amended to read 4 New York Plaza, New York, New
York 10004.
Portfolio Summary
National Trust
The Portfolio contains 13 issues of Securities of issuers located in 11
states. All of the issues are payable from the income of specific projects or
authorities and are not supported by the issuer's power to levy taxes. Although
income to pay such Securities may be derived from more than one source, the
primary sources of such income and the percentage of issues deriving income from
such sources are as follows; health and hospital facilities: 19.7%* of the
Trust; housing facilities: 31.4%* of the Trust; power facilities: 5.0%* of the
Trust; transportation facilities: 10.1%* of the Trust; industrial development
facilities: 30.7%* of the Trust; miscellaneous: 3.1%* of the Trust. The Trust is
concentrated in housing and industrial development facilities Securities.
A-i
<PAGE>
The Portfolio also contains Securities representing 31.4%* of the Trust
(single-family housing securities) which are subject to the requirements of
Section 103A of the Internal Revenue Code of 1954 or Section 143 of the Internal
Revenue Code of 1986, as amended.
84.7%* of the Securities in the Trust are rated by Standard & Poor's
Corporation (24.2%* being rated AAA, 20.0%* being rated AA and 40.5%* being
rated A) and 15.3%* of the Securities in the Trust are rated by Moody's
Investors Service (10.3%* being rated Aa and 5% being rated Baa). For a
description of the meaning of the applicable rating symbols as published by
Standard & Poor's and Moody's, see Part B--'Bond Ratings.' It should be
emphasized, however, that the ratings of Standard & Poor's and Moody's represent
their opinions as to the quality of the Securities which they undertake to rate
and that these ratings are general and are not absolute standards of quality.
Eight Securities in the Trust have been issued with an 'original issue
discount.' (See Part B--'Tax Status.')
Of these original issue discount bonds, approximately 4.9% of the aggregate
principal amount of the Securities in the Trust (although only .8%* of the
aggregate bid price of all Securities in the Trust) are zero coupon bonds
(including bonds known as multiplier bonds, money multiplier bonds, capital
appreciation bonds, capital accumulator bonds, compound interest bonds, and
discount maturity payment bonds).
Alternative Minimum Tax
The Sponsor's affiliate, The Prudential Investment Corporation, estimates
that 64.0% of the estimated net annual income per Unit consists of interest on
private activity bonds, which interest is to be treated as a tax preference item
for alternative minimum tax purposes. (See 'Tax Status' and 'Schedule of
Portfolio Securities.')
- ------------
* Percentages computed on the basis of the aggregate bid price of the
Securities in the Trust on April 11, 1997.
A-ii
<PAGE>
SUMMARY OF ESSENTIAL INFORMATION
NATIONAL MUNICIPAL TRUST
Series 183
As of April 11, 1997
<TABLE>
<S> <C>
FACE AMOUNT OF SECURITIES......................... $10,210,000.00
NUMBER OF UNITS................................... 10,000
FRACTIONAL UNDIVIDED INTEREST IN THE TRUST
REPRESENTED BY EACH UNIT........................ 1/10,000th
PUBLIC OFFERING PRICE(2)
Aggregate bid side evaluation of Securities in
the Trust..................................... $ 9,560,732.48
Bid side evaluation per Unit of Securities
subject to a sales charge (excludes DSC
Payment Securities)........................... $ 934.15
Sales charge of 5.5% (5.82% of Securities
subject to a sales charge)(3)................. $ 54.37
Bid side evaluation per Unit of DSC Payment
Securities.................................... $ 21.93
--------------
Aggregate of bid side evaluation plus the total
sales charge(2)............................... $ 1,010.45
--------------
Deferred sales charge........................... $ 22.67
Up-front sales charge........................... $ 31.70
--------------
Public Offering Price per Unit (bid side
evaluation of Securities plus Up-front sales
charge)(2)(3)(4).............................. $ 987.78
--------------
--------------
REDEMPTION AND SPONSOR'S REPURCHASE PRICE PER UNIT
(based on bid side evaluation of underlying
Securities less the DSC, $54.37 less than Public
Offering Price per Unit)(4)..................... $ 933.41
--------------
--------------
MINIMUM PRINCIPAL DISTRIBUTION: No distribution need be made from
the Principal Account if the balance therein is less than $5
per Unit.
SPONSOR'S ANNUAL PORTFOLIO SUPERVISION FEE: Maximum $.25 per
$1,000 face amount of underlying Securities.
PREMIUM AND DISCOUNT ISSUES IN PORTFOLIO: Face amount of
Securities with bid side evaluation:
over par--30.4%; at par--0%; at a discount from par--69.6%
EVALUATOR'S FEE FOR EACH EVALUATION: $10 per evaluation of the
portfolio.
EVALUATION TIME: 3:30 P.M. New York time.
MANDATORY TERMINATION DATE: (5) The Trust will terminate on the
date of the maturity, redemption, sale or other disposition of
the last Security held in the Trust.
MINIMUM VALUE OF TRUST: The Trust may be terminated if the value
of the Trust is less than 4,000,000
DATE OF DEPOSIT: January 25, 1996(1)
</TABLE>
<TABLE>
<CAPTION>
Monthly
-------
<S> <C>
CALCULATION OF ESTIMATED NET ANNUAL INCOME PER UNIT(4)(9)
Estimated Annual Income per Unit............................................................... $57.46
Less estimated annual expenses per Unit(5)..................................................... $ 2.59
-------
Estimated Net Annual Income per Unit........................................................... $54.87
-------
-------
Trustee's Annual Fee (including estimated expenses and Evaluator's fee)
per $1,000 principal amount of Securities...................................................... $ 1.94
Estimated Organizational Expenses per $1,000 principal amount of Securities...................... $ .40
Daily Rate of Income Accrual per Unit(8)......................................................... $.1524
Estimated Current Return(6)(7)(9)................................................................ 5.55%
Estimated Long-Term Return(7).................................................................... 5.60%
INTEREST DISTRIBUTION
Estimated Net Annual Income per Unit / 12...................................................... $ 4.57
Record Dates--tenth day of each month
Distribution Dates--twenty-fifth day of each month
Deferred Sales Charge Deduction Dates: The first day of each quarter, commencing June 1, 1996 and
ending on March 1, 1999
- ------------------
Footnotes: See Page A-iv
</TABLE>
A-iii
<PAGE>
- ------------
(1) The Date of Deposit is the date on which the Indenture was signed and
the deposit of Securities with the Trustee was made.
(2) This Public Offering Price is computed as of April 11, 1997 and may vary
from the Public Offering Price on the date of this Prospectus or any subsequent
date.
(3) The total sales charge consists of an Upfront Sales charge and a
Deferred Sales Charge, the total of which equals 5.5% of the aggregate of the
bid side evaluation of the Securities subject to a sales charge plus the total
sales charge (5.82% of the bid side evaluation of the Securities other than the
DSC Payment Securities). The Upfront Sales Charge is computed by deducting any
remaining unpaid Deferred Sales Charge from the total sales charge; thus, on the
date of the Summary Essential Information, the Upfront Sales charge is $31.70
per Unit. The Upfront Sales charge is calculated based on the total sales charge
at the time of purchase and added to the net asset value of a Unit and,
therefore, may vary based on changes in the valuation of the Securities. The
Upfront Sales Charge will be reduced on a graduated basis on purchases of 100
Units or more. See Part B--'Public Offering of Units--Volume Discount.' The
Deferred Sales charge is paid through reduction of the net asset value of the
Trust by $2.95 per Unit quarterly on each Deferred Sales charge Deduction Date.
See Part B--'Public Offering of Units--Secondary Market Sales Charge.' If a Unit
Holder exchanges, redeems or sells his Units to the Sponsor prior to the last
Deferred Sales Charge Deduction Date, the Unit Holder is obligated to pay any
remaining Deferred Sales Charge, the amount of which will reduce the disposition
proceeds.
(4) Exclusive of accrued interest (other than on the DSC Payment Securities)
which to April 16, 1997, the expected date of settlement for the purchase of
Units on April 11, 1997 was $1.91.
(5) Includes Trustee's fee, Sponsor's Portfolio supervision fee, estimated
expenses and Evaluator's fees.
(6) The estimated current return is increased for transactions entitled to a
reduced sales charge. (See Part B--'The Trust--Estimated Annual Income and
Current Return per Unit.')
(7) The Estimated Current Return is calculated by dividing the Estimated Net
Annual Income per Unit (which does not include the income on the DSC Payment
Securities) by the Public Offering Price per Unit. The Estimated Net Annual
Income per Unit will vary with changes in fees and expenses of the Trustee and
the Evaluator and with the principal prepayment, redemption, maturity, exchange
or sale of Securities while the Public Offering Price will vary with changes in
the bid price of the underlying Securities; therefore, there is no assurance
that the present Estimated Current Return indicated above will be realized in
the future. The Estimated Long-Term Return is calculated on a pre-tax basis
using a formula which takes into consideration, 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 (including the DSC Payment
Securities) and takes into account the expenses and sales charge associated with
each Unit. Since the market values and estimated retirements of the Securities
and the expenses of the Trust will change, there is no assurance that the
present Estimated Long-Term Return as indicated above will be realized in the
future. The after-tax Estimated Long-Term Return will be lower to the extent of
any taxation on the disposition of Securities. The Estimated Current Return and
Estimated Long-Term Return are expected to differ because the calculation of the
Estimated Long-Term Return reflects the estimated date and amount of principal
returned while the Estimated Current Return calculations include only Net Annual
Interest Income and Public Offering Price as of the above indicated calculation
date of the Summary of Essential Information.
(8) In calculating these figures the interest income on the DSC Payment
Securities has not been included.
(9) Does not include discount accretion on original issue discount or zero
coupon bonds.
A-iv
<PAGE>
<AUDIT-REPORT>
INDEPENDENT AUDITORS' REPORT
THE UNIT HOLDERS, SPONSOR AND TRUSTEE
NATIONAL MUNICIPAL TRUST
SERIES 183
We have audited the accompanying statement of financial condition and
schedule of portfolio securities of the National Municipal Trust Series 183
as of December 31, 1996, and the related statements of operations and
changes in net assets for the period from January 25, 1996 (date of deposit)
to December 31, 1996. These financial statements are the responsibility of
the Trustee (see Footnote (a)(1)). Our responsibility is to express an
opinion on these financial statements based on our audit.
We conducted our audit in accordance with generally accepted auditing
standards. 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
December 31, 1996 as shown in the statement of financial condition and
schedule of portfolio securities by correspondence with The Chase Manhattan
Bank, the Trustee. An audit also includes assessing the accounting
principles used and the significant estimates made by the Trustee, as well
as evaluating the overall financial statement presentation. We believe that
our audit provides 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 National Municipal
Trust Series 183 as of December 31, 1996 and the results of its operations
and the changes in its net assets for the period from January 25, 1996 (date
of deposit) to December 31, 1996 in conformity with generally accepted
accounting principles.
DELOITTE & TOUCHE LLP
DELOITTE & TOUCHE LLP
April 1, 1997
New York, New York
</AUDIT-REPORT>
A-1
<PAGE>
STATEMENT OF FINANCIAL CONDITION
NATIONAL MUNICIPAL TRUST
SERIES 183
December 31, 1996
TRUST PROPERTY
<TABLE>
<S> <C>
Investments in municipal bonds at market value
(amortized cost $9,942,093) (Note (a) and
Schedule of Portfolio Securities Notes (4) and (5)) $9,799,738
Accrued interest receivable 179,117
Deferred organizational costs 16,331
Total 9,995,186
LIABILITIES AND NET ASSETS
Less Liabilities:
Deferred sales charge payable (Note(e)) 265,600
Organizational costs payable 16,331
Due to Trustee 107,898
Accrued Trust fees and expenses 8,512
Total liabilities 398,341
Net Assets:
Balance applicable to 10,000 Units of fractional
undivided interest outstanding (Note (c)):
Capital, less net unrealized market depreciation
of $142,355 $9,534,138
Undistributed principal and net investment
income (Note (b)) 62,707
Net assets $9,596,845
Net asset value per Unit ($9,596,845 divided by 10,000 Units) $ 959.68
</TABLE>
See notes to financial statements
A-2
<PAGE>
STATEMENT OF OPERATIONS
NATIONAL MUNICIPAL TRUST
SERIES 183
<TABLE>
<CAPTION>
For the period from
January 25, 1996
(date of deposit)
to December 31, 1996
<S> <C>
Investment income - interest $543,227
Less Expenses:
Trust fees and expenses 22,613
Amortization of organizational costs 3,669
Total expenses 26,282
Investment income - net 516,945
Net loss on investments:
Net unrealized market depreciation (142,355)
Net loss on investments (142,355)
Net increase in net assets resulting from operations $374,590
</TABLE>
See notes to financial statements
A-3
<PAGE>
STATEMENT OF CHANGES IN NET ASSETS
NATIONAL MUNICIPAL TRUST
SERIES 183
<TABLE>
<CAPTION>
For the period from
January 25, 1996
(date of deposit)
to December 31, 1996
<S> <C>
Operations:
Investment income - net $ 516,945
Net unrealized market depreciation (142,355)
Net increase in net assets resulting from operations 374,590
Less Distributions to Unit Holders:
Investment income - net (470,700)
Total distributions (470,700)
Net decrease in net assets (96,110)
Net assets:
Beginning of period (Note (c)) 9,692,955
End of period (including undistributed principal and net investment
income of $62,707) $9,596,845
</TABLE>
See notes to financial statements
A-4
<PAGE>
NOTES TO FINANCIAL STATEMENTS
NATIONAL MUNICIPAL TRUST
SERIES 183
December 31, 1996
(a) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
The Trust is registered under the Investment Company Act of 1940 as a
Unit Investment Trust. The following is a summary of the significant
accounting policies of the Trust:
(1) Basis of Presentation
The Trustee has custody of and responsibility for all accounting and
financial books, records, financial statements and related data of
the Trust and is responsible for establishing and maintaining a
system of internal controls directly related to, and designed to
provide reasonable assurance as to the integrity and reliability
of, financial reporting of the Trust. The Trustee is also
responsible for all estimates and accruals reflected in the Trust's
financial statements. The Evaluator determines the price for each
underlying Security included in the Trust's Schedule of Portfolio
Securities on the basis set forth in Part B of this Prospectus,
"Public Offering of Units - Public Offering Price". Under the
Securities Act of 1933 ("the Act"), as amended, the Sponsor is
deemed to be an issuer of the Trust Units. As such, the Sponsor
has the responsibility of an issuer under the Act with respect to
financial statements of the Trust included in the Registration
Statement under the Act and amendments thereto.
(2) Investments
Investments are stated at market value as determined by the
Evaluator based on the bid side evaluations on the last day of
trading during the period, except that value on the date of deposit
(January 25, 1996) represents the cost of investments to the Trust
based on the offering side evaluations as of the date of deposit.
(3) Income Taxes
The Trust is not an association taxable as a corporation for Federal
income tax purposes; accordingly, no provision is required for such
taxes.
(4) Expenses
The Trust pays an annual Trustee's fee, estimated expenses,
Evaluator's fees, and an annual Sponsor's portfolio supervision fee
and may incur additional charges as explained under "Expenses and
Charges" in Part B of this Prospectus. A portion of the Trust's
organizational costs will be paid by the Trust and is being
deferred and amortized over a period of five years.
A-5
<PAGE>
NOTES TO FINANCIAL STATEMENTS
NATIONAL MUNICIPAL TRUST
SERIES 183
December 31, 1996
(b) DISTRIBUTIONS
Interest received by the Trust is distributed to the Unit Holders on or
shortly after the twenty-fifth day of the month after deducting
applicable expenses. Receipts other than interest are distributed as
explained in "Rights of Units Holders - Distribution of Interest and
Principal" in Part B of this Prospectus.
(c) ORIGINAL COST TO INVESTORS
The original cost to investors represents the aggregate initial public
offering price as of the date of initial deposit (January 25, 1996)
exclusive of accrued interest.
A reconciliation of the original cost of Units to investors to the net
amount applicable to investors as of December 31, 1996 follows:
<TABLE>
<S> <C>
Original cost to investors $10,193,600
Less: Gross underwriting commissions (sales charge) (500,645)
Net cost to investors 9,692,955
Principal cash reserved for payment of deferred
sales charge (21,100)
Net unrealized market depreciation (142,355)
Accumulated interest accretion 4,638
Net amount applicable to investors $ 9,534,138
</TABLE>
(d) OTHER INFORMATION
Selected data for a Unit of the Trust during the period:
<TABLE>
<CAPTION>
<S> <C>
Interest income $ 54.32
Expenses (2.63)
Investment income - net 51.69
Income distributions (47.07)
4.62
Net unrealized market depreciation (14.24)
Net decrease in net asset value (9.62)
Net asset value - beginning of period 969.30
Net asset value - end of period $959.68
</TABLE>
A-6
<PAGE>
NOTES TO FINANCIAL STATEMENTS
NATIONAL MUNICIPAL TRUST
SERIES 183
December 31, 1996
(e) DEFERRED SALES CHARGE
Represents the remaining unpaid amount of mandatory distributions of
$2.95 per Unit per quarter payable the first day of each quarter through
March 1, 1999. Distributions will be made to an account maintained by
the Trustee from which the deferred sales charge obligation of the
investors to the Sponsor will be satisfied. If Units are redeemed prior
to March 1, 1999, the remaining portion of the distribution applicable
to such Units will be transferred to such account on the redemption
date.
A-7
<PAGE>
SCHEDULE OF PORTFOLIO SECURITIES
NATIONAL MUNICIPAL TRUST
SERIES 183
December 31, 1996
<TABLE>
<CAPTION>
Port- Optional
folio Rating Face Coupon Maturity Sinking Fund Refunding Market
No. Title of Securities <F1> Amount Rate Date Redemptions<F3> Redemptions<F2> Value
<F4><F5>
<C> <S> <C> <C> <C> <C> <C> <C> <C>
1. City of Valdez, Alaska,
Marine Terminal Revenue
Refunding Bonds, (BP Pipe-
lines (Alaska) Inc. Project),
Series 1993C. AA $ 1,000,000 5.650% 12/01/28 NONE 12/01/03@102 $ 972,590
2. The City of Los Angeles,
Municipal Improvement
Corporation of Los Angeles,
Certificates of Participa-
tion (Equipment Acquisition
Program W). <F8> AAA 110,000 4.000 02/01/99 NONE NONE 109,845
3. Idaho Housing Agency,
Single-Family Mortgage Bonds,
1995 Series F. <F7> AAA 1,000,000 6.450 07/01/27 01/01/16@100 07/01/05@102 1,018,310
4. Illinois Health Facilities
Authority, Revenue Bonds,
Series 1993 (OSF Health Care
System). A+ 1,000,000 6.000 11/15/23 11/15/14@100 11/15/03@102 998,590
5. Illinois Health Facilities
Authority, Revenue Bonds,
Series 1993 (Illinois Masonic
Medical Center). A<F6> 1,000,000 5.500 10/01/19 10/01/08@100 10/01/03@102 939,460
6. The Industrial Development
Authority of the City of St.
Louis, Missouri, Sewage and
Solid Waste Disposal Facili-
ties Revenue Bonds,
(Anheuser-Busch Project),
Series 1995. <F7> AA- 1,000,000 5.875 11/01/26 NONE 11/01/05@102 1,015,040
7. North Carolina Eastern
Municipal Power Agency,
Power System Revenue Bonds,
Refunding Series 1993 B. Baa1<F6> 500,000 6.000 01/01/26 07/01/25@100 NONE 494,580
8. New York City Industrial
Development Agency Special
Facility Revenue Bonds,
Series 1994 (Terminal One
Group Association, L.P.
Project). <F7> A 1,000,000 6.000 01/01/19 01/01/16@100 01/01/04@102 987,980
9. State of New York Mortgage
Agency, Homeowner Mortgage
Revenue Bonds, Series 52.<F7> Aa<F6> 1,000,000 6.100 04/01/26 04/01/18@100 01/04/06@102 1,005,570
10. New Morgan Industrial
Development Authority (Penn-
sylvania), Solid Waste Dis-
posal Revenue Bonds, (New
Morgan Landfill Company, Inc.
Project), Series 1994. <F7> A 1,000,000 6.500 04/01/19 NONE 04/01/04@102 1,040,020
11. Utah Housing Finance
Agency, Single-Family Mort-
gage Bonds, 1995 Issue G
(Federally Insured or Guar-
anteed Mortgage Loans). <F7>
<F9> AAA 1,000,000 6.450 07/01/27 01/01/16@100 01/01/06@102 1,021,899
</TABLE>
A-8
<PAGE>
SCHEDULE OF PORTFOLIO SECURITIES
NATIONAL MUNICIPAL TRUST
SERIES 183
December 31, 1996
<TABLE>
<CAPTION>
Port- Optional
folio Rating Face Coupon Maturity Sinking Fund Refunding Market
No. Title of Securities <F1> Amount Rate Date Redemptions<F3> Redemptions<F2> Value
<F4><F5>
<C> <S> <C> <C> <C> <C> <C> <C> <C>
12. Federal Way School Dis-
trict No. 210, King County,
Washington, Unlimited Tax
General Obligation Refunding
Bonds, 1996. <F8> AAA $ 110,000 4.000% 12/01/97 NONE NONE $ 110,419
13. Wisconsin Center Dis-
trict, Senior Dedicated Tax
Revenue Bonds, Series 1996A. AAA 500,000 0.000 12/15/27 NONE NONE 85,435
$10,220,000 $9,799,738
</TABLE>
See notes to schedule of portfolio securities
A-9
<PAGE>
NOTES TO SCHEDULE OF PORTFOLIO SECURITIES
NATIONAL MUNICIPAL TRUST
SERIES 183
December 31, 1996
<F1> All ratings are provided by Standard & Poor's Corporation, unless
otherwise indicated. A brief description of applicable Security
ratings is given under "Bond Ratings" in Part B of this Prospectus.
<F2> There is shown under this heading the date on which each issue of
Securities is redeemable by the operation of optional call
provisions and the redemption price for that date; unless otherwise
indicated, each issue continues to be redeemable at declining
prices thereafter but not below par. Securities listed as non-
callable, as well as Securities listed as callable, may also be
redeemable at par under certain circumstances from special
redemption payments.
<F3> There is shown under this heading the date on which an issue of
Securities is subject to scheduled sinking fund redemption and the
redemption price on such date.
<F4> The market value of the Securities as of December 31, 1996 was
determined by the Evaluator on the basis of bid side evaluations
for the Securities at such date.
<F5> At December 31, 1996, the net unrealized market depreciation of all
Securities was comprised of the following:
<TABLE>
<S> <C>
Gross unrealized market appreciation $ 709
Gross unrealized market depreciation (143,064)
Net unrealized market depreciation $(142,355)
</TABLE>
The amortized cost of the Securities for Federal income tax purposes
was $9,942,093 at December 31, 1996.
<F6> Moody's Investors Service, Inc. rating.
<F7> In the opinion of bond counsel to the issuing governmental
authorities, interest payments on these bonds will be a tax
preference item for individuals and corporations for alternative
minimum tax purposes. Normally, the bonds pay interest
semiannually. The payment dates can generally be determined based
on the date of maturity, i.e., a bond maturing on December 1 will
pay interest semiannually on June 1 and December 1. See "Tax
Status" in Part B of this Prospectus.
<F8> The interest payments and principal payments on these securities
will be distributed by the Trust to the Sponsor in payment of the
deferred sales charge.
(9) $10,000 face amount was called for redemption on 01/02/97. Such
Securities are valued at the amount of the proceeds subsequently
received.
A-10
<PAGE>
(MODULE)
[NAME] NMT-PUT-PTB-996
[CCC] 0000941856
[CIK] 3ttrjz#m
(/MODULE)
<PAGE>
This Post-Effective Amendment to the Registration Statement on
Form S-6 comprises the following papers and documents:
The facing sheet on Form S-6.
The Prospectus.
Signatures.
Consent of independent public accountants and consent of evalu-
ator; all other consents were previously filed.
The following Exhibits:
****EX-3.(i) - Restated Certificate of Incorporation of Prudential
Securities Incorporated dated March 29, 1993.
*****EX-3.(ii) - Revised By-Laws of Prudential Securities Incorpo-
rated as amended through June 21, 1996.
+EX-4 - Trust Indenture and Agreement dated September 6,
1989.
*EX-23 - Consent of Kenny S&P Evaluation Services, a divi-
sion of J.J. Kenny Co., Inc. (as evaluator).
***EX-24 - Powers of Attorney executed by a majority of the
Board of Directors of Prudential Securities
Incorporated.
*Ex-27 - Financial Data Schedule.
Ex-99 - Information as to Officers and Directors of Pruden-
tial Securities Incorporated is incorporated by
reference to Schedules A and D of Form BD filed
by Prudential Securities Incorporated pursuant to
Rules l5b1-1 and l5b3-1 under the Securities
Exchange Act of 1934 (1934 Act File No. 8-16267).
**EX-99.2 - Affiliations of Sponsor with other investment com-
panies.
**EX-99.3 - Broker's Blanket Policies, Standard Form No. 39 in
the aggregate amount of $62,500,000.
+EX-99.4 - Investment Advisory Agreement.
II-1
<PAGE>
_________________________
* Filed herewith.
** Incorporated by reference to exhibit of same designation filed with
the Securities and Exchange Commission as an exhibit to the Registra-
tion Statement under the Securities Act of 1933 of Prudential Unit
Trusts, Insured Tax-Exempt Series 1, Registration No. 2-89263.
*** Incorporated by reference to exhibits of same designation filed with
the Securities and Exchange Commission as an exhibit to the Registra-
tion Statement under the Securities Act of 1933 of National Municipal
Trust Series, Series 172, Registration No. 33-54681 and National
Equity Trust, Top Ten Portfolio Series 3, Registration No. 333-15919.
**** Incorporated by reference to exhibit of same designation filed with
the Securities and Exchange Commission as an exhibit to the Registra-
tion Statement under the Securities Act of 1933 of Government Securi-
ties Equity Trust Series 5, Registration No. 33-57992.
***** Incorporated by reference to exhibit of same designation filed with
the Securities and Exchange Commission as an exhibit to the Registra-
tion Statement under the Securities Act of 1933 of National Municipal
Trust, Series 186, Registration No. 33-54697.
+ Incorporated by reference to exhibit of same designation filed with
the Securities and Exchange Commission as an exhibit to the Registra-
tion Statement under the Securities Act of 1933 of National Municipal
Trust, Insured Series 43, Registration No. 33-29314.
II-2
<PAGE>
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, the
registrant, National Municipal Trust, Series 183 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 or amendment thereto to be signed on its
behalf by the undersigned thereunto duly authorized, in the City of New
York, and State of New York on the 17th day of April, 1997.
NATIONAL MUNICIPAL TRUST,
Series 183
(Registrant)
By PRUDENTIAL SECURITIES INCORPORATED
(Depositor)
By the following persons,* who
constitute a majority of the
Board of Directors of Prudential
Securities Incorporated
Robert C. Golden
Alan D. Hogan
A. Laurence Norton, Jr.
Leland B. Paton
Martin Pfinsgraff
Vincent T. Pica II
Hardwick Simmons
Lee B. Spencer, Jr.
By /s/ Kenneth Swankie
--------------------------------
(Kenneth Swankie
Senior Vice President,
Manager--Unit Investment
Trust Department,
as authorized signatory for
Prudential Securities
Incorporated and Attorney-
in-Fact for the persons
listed above)
_____________________
* Pursuant to Powers of Attorney previously filed.
II-3
<PAGE>
CONSENT OF COUNSEL
The consent of counsel to the use of its name in the Prospectus
included in this Registration Statement is contained in its opinion filed
as Exhibit 5 to the Registration Statement.
II-4
<PAGE>
CONSENT OF INDEPENDENT AUDITORS
We consent to the use of our report dated April 1, 1997 accompanying the
financial statements of the National Municipal Trust Series 183 included
herein and to the reference to our Firm as experts under the heading
"Auditors" in the prospectus which is a part of this registration statement.
DELOITTE & TOUCHE LLP
DELOITTE & TOUCHE LLP
April 28, 1997
New York, New York
II-5
<PAGE>
Exhibit 23
Letterhead of Kenny S&P Evaluation Services
(a division of J.J. Kenny Co., Inc.)
April 18, 1997
Prudential Securities Incorporated
1 New York Plaza
New York, NY 10292
Re: National Municipal Trust
Post-Effective Amendment No. 1
Series 183
Dear Gentlemen:
We have examined the post-effective Amendment to the Registra-
tion Statement File No. 33-64843 for the above-captioned trust. We hereby
acknowledge that Kenny S&P Evaluation Services, 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 Registration Statement of the references to Kenny
S&P Evaluation Services, a division of J.J. Kenny Co., Inc., as evaluator.
In addition, we hereby confirm that the ratings indicated in
the Registration Statement for the respective bonds comprising the trust
portfolio are the ratings currently indicated in our KENNYBASE database as
of the date of the evaluation report.
You are hereby authorized to file a copy of this letter with
the Securities and Exchange Commission.
Sincerely,
Frank A. Ciccotto
Frank A. Ciccotto
Vice President
<TABLE> <S> <C>
<PAGE>
<ARTICLE> 6
<LEGEND> THE SCHEDULE CONTAINS SUMMARY FINANCIAL
INFORMATION EXTRACTED FROM THE FINANCIAL
STATEMENTS FOR NATIONAL MUNICIPAL TRUST
SERIES 183 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS
</LEGEND>
<RESTATED>
<CIK> 0000941879
<NAME> NATIONAL MUNICIPAL TRUST
SERIES 183
<SERIES>
<NAME> NATIONAL MUNICIPAL TRUST
SERIES
<NUMBER> 183
<MULTIPLIER> 1
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> Dec-31-1996
<PERIOD-START> Jan-25-1996
<PERIOD-END> Dec-31-1996
<INVESTMENTS-AT-COST> 9,942,093
<INVESTMENTS-AT-VALUE> 9,799,738
<RECEIVABLES> 195,448
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 9,995,186
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 398,341
<TOTAL-LIABILITIES> 398,341
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 9,706,738
<SHARES-COMMON-STOCK> 10,000
<SHARES-COMMON-PRIOR> 10,000
<ACCUMULATED-NII-CURRENT> 32,462
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (142,355)
<NET-ASSETS> 9,596,845
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 538,589
<OTHER-INCOME> 4,638
<EXPENSES-NET> 26,282
<NET-INVESTMENT-INCOME> 516,945
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> (142,355)
<NET-CHANGE-FROM-OPS> 374,590
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 470,700
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> (96,110)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 0
<AVERAGE-NET-ASSETS> 0
<PER-SHARE-NAV-BEGIN> 0
<PER-SHARE-NII> 0
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 0
<EXPENSE-RATIO> 0
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
