MONEY MARKET OBLIGATIONS TRUST /NEW/
485APOS, 1998-07-30
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                                          1933 Act File No. 33-31602
                                          1940 Act File No. 811-5950

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    Form N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

    Pre-Effective Amendment No.         ....................

    Post-Effective Amendment No.  23     ...................        X

                                     and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940     X

    Amendment No. 24   .....................................

                         MONEY MARKET OBLIGATIONS TRUST

               (Exact Name of Registrant as Specified in Charter)

                            Federated Investors Funds
                              5800 Corporate Drive
                       Pittsburgh, Pennsylvania 15237-7000
                    (Address of Principal Executive Offices)

                                 (412) 288-1900
                         (Registrant's Telephone Number)

                           John W. McGonigle, Esquire,
                           Federated Investors Tower,
                       Pittsburgh, Pennsylvania 15222-3779
                     (Name and Address of Agent for Service)

It is proposed that this filing will become effective:

 _  immediately upon filing pursuant to paragraph (b)
    on                   , pursuant to paragraph (b)
    60 days after filing pursuant to paragraph (a) (i)
 x  on September 30, 1998, pursuant to paragraph (a) (i) 75 days after filing
    pursuant to paragraph (a)(ii) on _________________ pursuant to paragraph
    (a)(ii) of Rule 485.

If appropriate, check the following box:

    This post-effective amendment designates a new effective date for a
previously filed post-effective amendment.


                                   Copies to:

Matthew G. Maloney, Esquire
Dickstein Shapiro Morin & Oshinsky LLP
2101 L Street, N.W.
Washington, DC  20037




<PAGE>


                              CROSS-REFERENCE SHEET


    This Amendment to the Registration Statement of MONEY MARKET OBLIGATIONS
TRUST, which consists of six (6) portfolios: (1) Government Obligations Fund,
(a) Institutional Shares and (b) Institutional Service Shares; (2) Prime
Obligations Fund, (a) Institutional Shares and (b) Institutional Service Shares;
(3) Tax-Free Obligations Fund, (a) Institutional Shares and (b) Institutional
Service Shares; (4) Treasury Obligations Fund, (a) Institutional Shares, (b)
Institutional Service Shares, and (c) Institutional Capital Shares; (5)
Automated Cash Management Trust, (a) Institutional Service Shares and (b) Cash
II Shares; and (6) Government Obligations Tax-Managed Fund, (a) Institutional
Shares and (b) Institutional Service Shares, is comprised of the following:

PART A.    INFORMATION REQUIRED IN A PROSPECTUS.

                                          Prospectus Heading
                                          (Rule 404(c) Cross Reference)

Item 1.     Cover Page....................(5) Cover Page.
Item 2.     Synopsis                      (5) Summary of Fund Expenses.
Item 3.     Condensed Financial
             Information..................(5) Financial Highlights;
                                          (5) Performance Information;
                                          (5) Financial Statements.
Item 4.     General Description of
             Registrant...................(5) General Information;
                                          (5) Investment Information;
                                          (5) Investment Objective;
                                          (5) Investment Policies;
                                          (5) Investment Risks;
                                          (5) Investment Limitations.
Item 5.     Management of the Fund        (5) Fund Information; (5) Management
                                          of the Fund; (5(b)) Distribution of
                                          Shares; (5) Administration of the
                                          Fund; (5) Administrative Services.
Item 6.     Capital Stock and Other
             Securities                   (5) Account and Share Information;
                                          (5) Dividends; (5) Capital Gains;
                                          (5) Voting Rights; (5) Tax
                                          Information; (5) Federal Income Tax;
                                          (5) State and Local Taxes; (5) Other
                                          Classes of Shares.
Item 7.     Purchase of Securities Being
             Offered......................(5) Net Asset Value; (5) How to
                                          Purchase Shares; (5) Purchasing Shares
                                          Through a Financial Institution; (5)
                                          Purchasing Shares by Wire; (5)
                                          Purchasing Shares by Check; (5)
                                          Invest-by-Phone; (5) By Direct
                                          Deposit; (5) Automatic Investments;
                                          (5) Subaccounting Services; (5)
                                          Special Purchase Features; (5)
                                          Confirmations and Account Statements;
                                          (5(a)) Distribution of Institutional
                                          Service Shares; (5(a)) Shareholder
                                          Services; (5(a)) Supplemental Payments
                                          to Financial Institutions.
Item                                      8. Redemption or Repurchase (5) How to
                                          Redeem Shares; (5) Redeeming Shares
                                          Through a Financial Institution; (5)
                                          Redeeming Shares by Telephone; (5)
                                          Redeeming Shares By Mail; (5) Special
                                          Redemption Features; (5) Accounts with
                                          Low Balances.
Item 9.     Pending Legal Proceedings.....None.


<PAGE>


PART B.    INFORMATION REQUIRED IN A STATEMENT OF ADDITIONAL INFORMATION.

Item 10.    Cover Page....................(5) Cover Page.
Item 11.    Table of Contents.............(5) Table of Contents.
Item 12.    General Information and
             History......................(5) About Federated Investors;
                                          (5) Fund History.
Item 13.    Investment Objectives and
             Policies.....................(5) Investment Policies; (5)
                                          Investment Limitations.
Item 14.    Management of the Fund........(5) Money Market Obligations Trust
                                          Management; (5) Trustee Compensation.
Item 15.    Control Persons and Principal
             Holders of Securities........(5) Share Ownership.
Item 16.    Investment Advisory and Other
             Services.....................(5) Investment Advisory Services;
                                          (5) Other Services.
Item 17.    Brokerage Allocation..........(5) Brokerage Transactions.
Item 18.    Capital Stock and Other
             Securities                   (5) Massachusetts Partnership Law.
Item 19.    Purchase, Redemption and
             Pricing of Securities
             Being Offered................(5) Determining Net Asset Value;
                                          (5) Redemption in Kind.
Item 20.    Tax Status....................(5) The Fund's Tax Status.
Item 21.    Underwriters                  Not Applicable.
Item 22.    Calculation of Performance
             Data.........................(5) Performance Information;
                                          (5) Yield; (5) Effective Yield;
                                          (5) Total Return; (5) Performance
                                          Comparisons.
Item 23.    Financial Statements..........To be filed by amendment.








Automated Cash Management Trust
(A Portfolio of Money Market Obligations Trust)
Institutional Service Shares

Prospectus





The Institutional Service Shares of Automated Cash Management Trust (the "Fund")
offered by this prospectus represent interests in a portfolio of Money Market
Obligations Trust (the "Trust"), an open-end management investment company (a
mutual fund). The Fund invests in short-term money market securities to achieve
stability of principal and current income consistent with stability of
principal.

The shares offered by this prospectus are not deposits or obligations of any
bank, are not endorsed or guaranteed by any bank and are not insured or
guaranteed by the U.S. government, the Federal Deposit Insurance Corporation,
the Federal Reserve Board, or any other government agency. Investment in these
shares involves investment risks, including possible loss of principal. The Fund
attempts to maintain a stable net asset value of $1.00 per share; there can be
no assurance that the Fund will be able to do so.

This prospectus contains the information you should read and know before you
invest in the Fund. Keep this prospectus for future reference.

   

The Fund has also filed a Statement of Additional Information dated September
30, 1998, with the Securities and Exchange Commission ("SEC"). The information
contained in the Statement of Additional Information is incorporated by
reference into this prospectus. You may request a copy of the Statement of
Additional Information or a paper copy of this prospectus, if you have received
your prospectus electronically, free of charge by calling 1-800-341-7400. To
obtain other information, or make inquiries about the Fund, contact your
financial institution. The Statement of Additional Information, material
incorporated by reference into this document, and other information regarding
the Fund is maintained electronically with the SEC at Internet Web site
(http://www.sec.gov).

THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION NOR HAS THE SECURITIES AND EXCHANGE COMMISSION PASSED UPON
THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENSE.
















Prospectus dated September 30, 1998
    



<PAGE>



                                TABLE OF CONTENTS


(To be filed by amendment.)



<PAGE>



                               GENERAL INFORMATION

The Trust was established as a Massachusetts business trust under a Declaration
of Trust dated October 3, 1988. The Declaration of Trust permits the Trust to
offer separate series of shares representing interests in separate portfolios of
securities. The shares in any one portfolio may be offered in separate classes.
With respect to this Fund, as of the date of this prospectus, the Board of
Trustees (the "Trustees") has established two classes of shares known as
Institutional Service Shares and Cash II Shares. This prospectus relates only to
Institutional Service Shares of the Fund, which are designed primarily for
retail and private banking customers of financial institutions as a convenient
means of accumulating an interest in a professionally managed portfolio
investing in short-term money market securities. A minimum initial investment of
$25,000 over a 90-day period is required except for retirement plans.

The Fund attempts to stabilize the value of a share at $1.00. Shares are
currently sold and redeemed at that price.

   

Year 2000 Statement
 Like other mutual funds and business organizations worldwide, the Fund's
service providers (among them, the adviser, distributor, administrator and
transfer agent) must ensure that their computer systems are adjusted to properly
process and calculate date-related information from and after January 1, 2000.
Many software programs and, to a lesser extent, the computer hardware in use
today cannot distinguish the year 2000 from the year 1900. Such a design flaw
could have a negative impact in the handling of securities trades, pricing and
accounting services. The Fund and its service providers are actively working on
necessary changes to computer systems to deal with the year 2000 issue and
believe that systems will be year 2000 compliant when required. Analysis
continues regarding the financial impact of instituting a year 2000 compliant
program on the Fund's operations.

    


                             INVESTMENT INFORMATION

Investment Objective
The investment objective of the Fund is stability of principal and current
income consistent with stability of principal. This investment objective cannot
be changed without shareholder approval. While there is no assurance that the
Fund will achieve its investment objective, it endeavors to do so by complying
with the diversification and other requirements of Rule 2a-7 under the
Investment Company Act of 1940 which regulates money market mutual funds and by
following the investment policies described in this prospectus.

Investment Policies
The Fund pursues its investment objective by investing in a portfolio of money
market instruments maturing in 13 months or less. The average maturity of the
money market instruments in the Fund's portfolio, computed on a dollar-weighted
basis, will be 90 days or less. Unless indicated otherwise, the investment
policies may not be changed by the Trustees without shareholder approval.

Acceptable Investments
The Fund invests in high quality money market instruments that are either rated
in the highest short-term rating category by one or more nationally recognized
statistical rating organizations ("NRSROs") or are of comparable quality to
securities having such ratings. Examples of these instruments include, but are
not limited to:

n instruments of domestic and foreign banks and savings and loans (such as
  certificates of deposit, demand and time deposits, savings shares, and
  bankers' acceptances) if they have capital, surplus, and undivided profits of
  over $100,000,000, or if the principal amount of the instrument is insured by
  the Bank Insurance Fund ("BIF") which is administered by the Federal Deposit
  Insurance Corporation ("FDIC") or the Savings Association Insurance Fund
  ("SAIF") which is administered by the FDIC. These instruments may include
  Eurodollar Certificates of Deposit ("ECDs"), Yankee Certificates of Deposit
  ("Yankee CDs"), and Eurodollar Time Deposits ("ETDs");

   
n commercial paper rated A-1 by Standard & Poor's, Prime-1 by Moody's Investors
  Service, Inc., or F-1 by Fitch IBCA, Inc., and unrated but of comparable
  quality, including Canadian Commercial Paper ("CCPs") and Europaper.

    
n marketable obligations issued or guaranteed by the U.S. government, its
  agencies, or instrumentalities; and

n repurchase agreements.

The Fund invests only in instruments denominated and payable in U.S. dollars.

Repurchase Agreements
Certain securities in which the Fund invests may be purchased pursuant to
repurchase agreements. Repurchase agreements are arrangements in which banks,
broker/dealers, and other recognized financial institutions sell U. S.
government securities or certificates of deposit to the Fund and agree, at the
time of sale, to repurchase them at a mutually agreed upon time and price within
one year from the date of acquisition. The Fund or its custodian will take
possession of the securities subject to repurchase agreements and these
securities will be marked to market daily. To the extent that the original
seller does not repurchase the securities from the Fund, the Fund could receive
less than the repurchase price on any sale of such securities.

Credit Enhancement
Certain of the Fund's acceptable investments may be credit-enhanced by a
guaranty, letter of credit, or insurance. Any bankruptcy, receivership, default
or change in the credit quality of the party providing the credit enhancement
will adversely affect the quality and marketability of the underlying security
and could cause losses to the Fund and affect its share price.

Demand Features
As a matter of non-fundamental investment policy, the Fund may acquire
securities that are subject to puts and standby commitments ("demand features")
to purchase the securities at their principal amount (usually with accrued
interest) within a fixed period (usually seven days) following a demand by the
Fund. The demand feature may be issued by the issuer of the underlying
securities, a dealer in the securities, or by another third party, and may not
be transferred separately from the underlying security. The Fund uses these
arrangements to provide the Fund with liquidity and not to protect against
changes in the market value of the underlying securities. The bankruptcy,
receivership, or default by the issuer of the demand feature, or a default on
the underlying security or other event that terminates the demand feature before
its exercise, will adversely affect the liquidity of the underlying security.
Demand features that are exercisable even after a payment default on the
underlying security may be treated as a form of credit enhancement.

When-Issued and Delayed Delivery Transactions
The Fund may purchase short-term U.S. government obligations on a when-issued or
delayed delivery basis. These transactions are arrangements in which the Fund
purchases securities with payment and delivery scheduled for a future time. The
Fund engages in when-issued and delayed delivery transactions only for the
purpose of acquiring portfolio securities consistent with the Fund's investment
objective and policies, not for investment leverage. In when-issued and delayed
delivery transactions, the Fund relies on the seller to complete the
transaction. The seller's failure to deliver the securities may cause the Fund
to miss a price or yield considered to be advantageous. Settlement dates may be
a month or more after entering into these transactions, and the market values of
the securities purchased may vary from the purchase prices.

As a matter of operating policy, the Fund may dispose of a commitment prior to
settlement if the adviser deems it appropriate to do so. In addition, the Fund
may enter into transactions to sell its purchase commitments to third parties at
current market values and simultaneously acquire other commitments to purchase
similar securities at later dates. The Fund may realize short-term profits or
losses upon the sale of such commitments.

Restricted and Illiquid Securities
   

As a matter of operating policy, the Fund may invest in restricted securities.
Restricted securities are any securities in which the Fund may invest pursuant
to its investment objective and policies, but which are subject to restrictions
on resale under federal securities law. Under criteria established by the
Trustees certain restricted securities are determined to be liquid. To the
extent that restricted securities are not determined to be liquid, the Fund will
limit their purchase, together with other illiquid securities, including
repurchase agreements providing for settlement in more than seven days after
notice, to 10% of its net assets.

Investing in Securities of Other Investment Companies
As a matter of operating policy, the Fund may invest its assets in securities of
other investment companies as an efficient means of carrying out its investment
policies. It should be noted that investment companies incur certain expenses,
such as management fees, and, therefore, any investment by the Fund in shares of
other investment companies may be subject to such duplicate expenses.

    

Investment Risks
ECDs, ETDs, Yankee CDs, Canadian Commercial Paper, and Europaper are subject to
different risks than domestic obligations of domestic banks or corporations.
Examples of these risks include international economic and political
developments, foreign governmental restrictions that may adversely affect the
payment of principal or interest, foreign withholding or other taxes on interest
income, difficulties in obtaining or enforcing a judgment against the issuing
entity, and the possible impact of interruptions in the flow of international
currency transactions. Risks may also exist for ECDs, ETDs, and Yankee CDs
because the banks issuing these instruments, or their domestic or foreign
branches, are not necessarily subject to the same regulatory requirements that
apply to domestic banks, such as reserve requirements, loan limitations,
examinations, accounting, auditing, recordkeeping, and the public availability
of information. These factors will be carefully considered by the Fund's adviser
in selecting investments for the Fund.

Investment Limitations
The Fund will not borrow money directly or through reverse repurchase agreements
(arrangements in which the Fund sells a money market instrument for a percentage
of its cash value with an agreement to buy it back on a set date) or pledge
securities except, under certain circumstances, the Fund may borrow up to
one-third of the value of its total assets and pledge up to 10% of the value of
its total assets to secure such borrowings. These investment limitations cannot
be changed without shareholder approval.


                                FUND INFORMATION

Management of the Fund
Board of Trustees
The Fund is managed by a Board of Trustees. The Trustees are responsible for
managing the Fund's business affairs and for exercising all the Trust's powers
except those reserved for the shareholders. An Executive Committee of the Board
of Trustees handles the Board's responsibilities between meetings of the Board.

Investment Adviser
Investment decisions for the Fund are made by Federated Management, the Fund's
investment adviser, subject to direction by the Trustees. The adviser
continually conducts investment research and supervision for the Fund and is
responsible for the purchase and sale of portfolio instruments.

   Advisory Fees
  The adviser receives an annual investment advisory fee equal to 0.50% of the
  Fund's average daily net assets. The adviser may voluntarily choose to waive a
  portion of its fee or reimburse other expenses of the Fund, but reserves the
  right to terminate such waiver or reimbursement at any time at its sole
  discretion.

   Adviser's Background
     

  Federated Management, a Delaware business trust, organized on April 11, 1989,
  is a registered investment adviser under the Investment Advisers Act of 1940.
  It is a subsidiary of Federated Investors, Inc. All of the Class A (voting)
  shares of Federated Investors, Inc. are owned by a trust, the trustees of
  which are John F. Donahue, Chairman and Director of Federated Investors, Inc.,
  Mr. Donahue's wife, and Mr. Donahue's son, J. Christopher Donahue, who is
  President and Director of Federated Investors, Inc.

  Federated Management and other subsidiaries of Federated Investors, Inc. serve
  as investment advisers to a number of investment companies and private
  accounts. Certain other subsidiaries also provide administrative services to a
  number of investment companies. With over $120 billion invested across more
  than 300 funds under management and/or administration by its subsidiaries, as
  of December 31, 1997, Federated Investors, Inc. is one of the largest mutual
  fund investment managers in the United States. With more than 2,000 employees,
  Federated continues to be led by the management who founded the company in
  1955. Federated funds are presently at work in and through approximately 4,000
  financial institutions nationwide.

      

Both the Trust and the adviser have adopted strict codes of ethics governing the
conduct of all employees who manage the Fund and its portfolio securities. These
codes recognize that such persons owe a fiduciary duty to the Fund's
shareholders and must place the interests of shareholders ahead of the
employees' own interests. Among other things, the codes: require preclearance
and periodic reporting of personal securities transactions; prohibit personal
transactions in securities being purchased or sold, or being considered for
purchase or sale, by the Fund; prohibit purchasing securities in initial public
offerings; and prohibit taking profits on securities held for less than sixty
days. Violations of the codes are subject to review by the Trustees, and could
result in severe penalties.


                  DISTRIBUTION OF INSTITUTIONAL SERVICE SHARES

   

Federated Securities Corp. is the principal distributor for Institutional
Service Shares of the Fund. It is a Pennsylvania corporation organized on
November 14, 1969, and is the principal distributor for a number of investment
companies. Federated Securities Corp. is a subsidiary of Federated Investors,
Inc.

    

Shareholder Services
   

The Fund has entered into a Shareholder Services Agreement with Federated
Shareholder Services, a subsidiary of Federated Investors, Inc., under which the
Fund may make payments up to 0.25% of the average daily net asset value of its
shares, computed at an annual rate, to obtain certain personal services for
shareholders and to maintain shareholder accounts. From time to time and for
such periods as deemed appropriate, the amount stated above may be reduced
voluntarily. Under the Shareholder Services Agreement, Federated Shareholder
Services will either perform shareholder services directly or will select
financial institutions to perform shareholder services. Financial institutions
will receive fees based upon shares owned by their clients or customers. The
schedules of such fees and the basis upon which such fees will be paid will be
determined from time to time by the Fund and Federated Shareholder Services.

    

Supplemental Payments to Financial Institutions
In addition to payments made pursuant to the Shareholder Services Agreement,
Federated Securities Corp. and Federated Shareholder Services, from their own
assets, may pay financial institutions supplemental fees for the performance of
substantial sales services, distribution-related support services, or
shareholder services. The support may include sponsoring sales, educational and
training seminars for their employees, providing sales literature, and
engineering computer software programs that emphasize the attributes of the
Fund. Such assistance will be predicated upon the amount of shares the financial
institution sells or may sell, and/or upon the type and nature of sales or
marketing support furnished by the financial institution. Any payments made by
the distributor may be reimbursed by the Fund's investment adviser or its
affiliates.


                           ADMINISTRATION OF THE FUND

Administrative Services
   

Federated Services Company, a subsidiary of Federated Investors, Inc., provides
administrative personnel and services (including certain legal and financial
reporting services) necessary to operate the Fund at an annual rate which
relates to the average aggregate daily net assets of all funds advised by
affiliates of Federated Investors, Inc. specified below:

    

Maximum  Average Aggregate
  Fee  Daily Net Assets

0.150% on the first $250 million 0.125%on the next $250 million 0.100%on the
 next $250 million
 0.075%on assets in excess of $750 million


The administrative fee received during any fiscal year shall be at least
$125,000 per portfolio and $30,000 per each additional class of shares.
Federated Services Company may choose voluntarily to waive a portion of its fee.


                                 NET ASSET VALUE

The Fund attempts to stabilize the net asset value of shares at $1.00 by valuing
the portfolio securities using the amortized cost method. The net asset value
per share is determined by subtracting liabilities attributable to Institutional
Service Shares from the value of Fund assets attributable to Institutional
Service Shares, and dividing the remainder by the number of Institutional
Service Shares outstanding. The Fund cannot guarantee that its net asset value
will always remain at $1.00 per share.

   

The net asset value is determined at 5:00 p.m. (Eastern time), Monday through
Friday, except on New Year's Day, Martin Luther King, Jr. Day, Presidents' Day,
Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and
Christmas Day.

    


                             HOW TO PURCHASE SHARES

Shares are sold at their net asset value, without a sales charge, next
determined after an order is received, on days which the New York Stock Exchange
is open for business. Shares may be purchased as described below, either through
a financial institution (such as a bank or broker/dealer) or by wire or by check
directly from the Fund, with a minimum initial investment of $25,000 or more
over a 90-day period. Financial institutions may impose different minimum
investment requirements on their customers.

In connection with any sale, Federated Securities Corp. may from time to time
offer certain items of nominal value to any shareholder or investor. The Fund
reserves the right to reject any purchase request. An account must be
established at a financial institution or by completing, signing, and returning
the new account form available from the Fund before shares can be purchased.

Purchasing Shares Through a Financial Institution
Investors may purchase shares through a financial institution which has a sales
agreement with the distributor. Orders are considered received when the Fund
receives payment by wire or converts payment by check from the financial
institution into federal funds. It is the financial institution's responsibility
to transmit orders promptly. Financial institutions may charge additional fees
for their services.

Purchasing Shares by Wire
Shares may be purchased by wire by calling the Fund before 5:00 p.m. Eastern
time to place an order. The order is considered received immediately. Payment by
federal funds must be received before 5:00 p.m. Eastern time in order to begin
earning dividends that same day. Federal funds should be wired as follows:
Federated Shareholder Services Company, c/o State Street Bank and Trust Company,
Boston, MA; Attention: EDGEWIRE; For Credit to: Automated Cash Management
Trust--Institutional Service Shares; Fund Number (this number can be found on
the account statement or by contacting the Fund); Group Number or Order Number;
Nominee or Institution Name; and ABA Number 011000028. Shares cannot be
purchased by wire on holidays when wire transfers are restricted. Questions on
wire purchases should be directed to your shareholder services representative at
the telephone number listed on your account statement.

Purchasing Shares by Check
Shares may be purchased by sending a check to Federated Shareholder Services
Company, P.O. Box 8600, Boston, MA 02266-8600. The check should be made payable
to Automated Cash Management Trust--Institutional Service Shares. Please include
an account number on the check. Orders by mail are considered received when
payment by check is converted into federal funds (normally the business day
after the check is received), and shares begin earning dividends the next day.

Invest-by-Phone
   

Once an account has been opened, a shareholder may use invest-by-phone for
investments if an authorization form has been filed with Federated Shareholder
Services Company, the transfer agent for shares of the Fund. Approximately two
weeks after sending the form to Federated Shareholder Services Company, the
shareholder may call Federated Shareholder Services Company to purchase shares.
Federated Shareholder Services Company will send a request for monies to the
shareholder's commercial bank, savings bank, or credit union ("bank") via the
Automated Clearing House ("ACH"). The shareholder's bank, which must be an ACH
member, will then forward the monies to Federated Shareholder Services Company.
The purchase is normally entered the next business day after the initial phone
request. For further information and an application, call the Fund.

    

By Direct Deposit
Shareholders of the Fund may have their Social Security, Railroad Retirement, VA
Compensation or Pension, Civil Service Retirement, and certain other retirement
payments invested directly into their Fund account. Shareholders must complete
an application and file it with Federated Shareholder Services Company prior to
use of this program. Allow 60 to 90 days for the application to be processed.

Automatic Investments
Investors may establish accounts with their financial institutions to have cash
accumulations automatically invested in the Fund. The investments may be made on
predetermined dates or when the investor's account reaches a certain level.
Participating financial institutions are responsible for prompt transmission of
orders relating to the program, and they may charge for their services.
Investors should read this prospectus along with the financial institution's
agreement or literature describing these services and fees.

Subaccounting Services
Financial institutions are encouraged to open single master accounts. A
subaccounting system is available through the transfer agent to minimize
internal recordkeeping requirements. The transfer agent charges a fee based on
the level of subaccounting services rendered. Financial institutions may charge
or pass through subaccounting fees as part of or in addition to normal trust or
agency account fees. They may also charge fees for other services provided which
may be related to the ownership of Fund shares. This prospectus should,
therefore, be read together with any agreement between the customer and the
financial institution with regard to the services provided, the fees charged for
those services, and any restrictions and limitations imposed.

Special Purchase Features
Systematic Investment Program
   

A minimum of $100 can be automatically withdrawn periodically from the
shareholder's checking account at an ACH member and invested in Fund shares.
Shareholders should contact their financial institution or the Fund to
participate in this program.

    


                              HOW TO REDEEM SHARES

Shares are redeemed at their net asset value next determined after Federated
Shareholder Services Company receives the redemption request. Redemptions will
be made on days on which the Fund computes its net asset value. Redemption
requests must be received in proper form and can be made as described below.

Redeeming Shares Through a Financial Institution
Shares may be redeemed by contacting the shareholder's financial institution.
Shares will be redeemed at the net asset value next determined after Federated
Shareholder Services Company receives the redemption request. According to the
shareholder's instructions, redemption proceeds can be sent to the financial
institution or to the shareholder by check or by wire. The financial institution
is responsible for promptly submitting redemption requests and providing proper
written redemption instructions. Customary fees and commissions may be charged
by the financial institution for this service.

Redeeming Shares by Telephone
Redemptions in any amount may be made by calling the Fund provided the Fund has
a properly completed authorization form. These forms can be obtained from
Federated Securities Corp. Proceeds from redemption requests before 5:00 p.m.
(Eastern time) will be wired the same day to the shareholder's account at a
domestic commercial bank which is a member of the Federal Reserve System, but
will not include that day's dividend. Proceeds from redeemed shares purchased by
check or through ACH will not be wired until that method of payment has cleared.
Proceeds from redemption requests on holidays when wire transfers are restricted
will be wired the following business day. Questions about telephone redemptions
on days when wire transfers are restricted should be directed to your
shareholder services representative at the telephone number listed on your
account statement.

Telephone instructions may be recorded and if reasonable procedures are not
followed by the Fund, it may be liable for losses due to unauthorized or
fraudulent telephone instructions.

In the event of drastic economic or market changes, a shareholder may experience
difficulty in redeeming by telephone. If this occurs, "Redeeming Shares by Mail"
should be considered. If at any time the Fund shall determine it necessary to
terminate or modify the telephone redemption privilege, shareholders would be
promptly notified.

Redeeming Shares by Mail
Shares may be redeemed in any amount by mailing a written request to: Federated
Shareholder Services Company, P.O. Box 8600, Boston, MA 02266-8600. If share
certificates have been issued, they should be sent unendorsed with the written
request by registered or certified mail to the address noted above.

The written request should state: the Fund name and the class designation; the
account name as registered with the Fund; the account number; and the number of
shares to be redeemed or the dollar amount requested. All owners of the account
must sign the request exactly as the shares are registered. Normally, a check
for the proceeds is mailed within one business day, but in no event more than
seven days, after the receipt of a proper written redemption request. Dividends
are paid up to and including the day that a redemption request is processed.

Shareholders requesting a redemption of any amount to be sent to an address
other than that on record with the Fund or a redemption payable other than to
the shareholder of record must have their signatures guaranteed by a commercial
or savings bank, trust company or savings association whose deposits are insured
by an organization which is administered by the Federal Deposit Insurance
Corporation; a member firm of a domestic stock exchange; or any other "eligible
guarantor institution," as defined in the Securities Exchange Act of 1934. The
Fund does not accept signatures guaranteed by a notary public.

Special Redemption Features
Check Writing
Upon request, a checking account will be established to allow shareholders to
redeem their Fund shares. Shareholder accounts will continue to receive the
daily dividend declared on the shares to be redeemed until the check is
presented to UMB Bank, N.A., the bank responsible for administering the check
writing program, for payment. However, checks should never be made payable or
sent to UMB Bank, N.A. or the Fund to redeem shares, and a check may not be
written to close an account.

Debit Card
Upon request, a debit account will be established. This account allows
shareholders to redeem shares by using a debit card. A fee will be charged to
the account for this service.

Systematic Withdrawal Program
If a shareholder's account has a value of at least $25,000, other than
retirement accounts subject to required minimum distributions, a systematic
withdrawal program may be established whereby automatic redemptions are made
from the account and transferred electronically to any commercial bank, savings
bank, or credit union that is an ACH member. Shareholders may apply for
participation in this program through their financial institutions or the Fund.


                          ACCOUNT AND SHARE INFORMATION

Dividends
Dividends are declared daily and paid monthly. Dividends are automatically
reinvested on payment dates in additional shares of the Fund unless cash
payments are requested by writing to the Fund. Shares purchased by wire before
5:00 p.m. (Eastern time) begin earning dividends that day. Shares purchased by
check begin earning dividends the day after the check is converted into federal
funds.

Capital Gains
The Fund does not expect to realize any capital gains or losses. If capital
gains or losses were to occur, they could result in an increase or decrease in
dividends. The Fund will distribute in cash or additional shares any realized
net long-term capital gains at least once every 12 months.

   

Account Activity
Shareholders will receive periodic statements reporting all account activity,
including dividends paid. The Fund will not issue share certificates.

    

Accounts with Low Balances
Due to the high cost of maintaining accounts with low balances, the Fund may
redeem shares in any account, except accounts maintained by retirement plans,
and pay the proceeds to the shareholder if the account balance falls below a
required minimum value of $25,000 due to shareholder redemptions. Before shares
are redeemed to close an account, the shareholder is notified in writing and
allowed 30 days to purchase additional shares to meet the minimum requirement.

Voting Rights
Each share of the Trust owned by a shareholder gives that shareholder one vote
in Trustee elections and other matters submitted to shareholders for vote. All
shares of all classes of each portfolio in the Trust have equal voting rights,
except that in matters affecting only a particular portfolio or class, only
shareholders of that portfolio or class are entitled to vote. The Trust is not
required to hold annual shareholder meetings. Shareholder approval will be
sought only for certain changes in the Trust's or the Fund's operation and for
election of Trustees under certain circumstances.

Trustees may be removed by the Trustees or by shareholders at a special meeting.
A special meeting shall be called by the Trustees upon the written request of
shareholders owning at least 10% of the outstanding shares of the Trust.


                                 TAX INFORMATION

Federal Income Tax
The Fund will pay no federal income tax because it expects to meet requirements
of the Internal Revenue Code applicable to regulated investment companies and to
receive the special tax treatment afforded to such companies. The Fund will be
treated as a single, separate entity for federal income tax purposes so that
income (including capital gains) and losses realized by the Trust's other
portfolios will not be combined for tax purposes with those realized by the
Fund.

Unless otherwise exempt, shareholders are required to pay federal income tax on
any dividends and other distributions received. This applies whether dividends
and distributions are received in cash or as additional shares.

State and Local Taxes
   

    

Shareholders are urged to consult their own tax advisers regarding the status of
their accounts under state and local tax laws.


                             OTHER CLASSES OF SHARES

   

The Fund also offers another class of shares. Cash II Shares are sold at net
asset value primarily to retail customers of financial institutions and are
subject to a minimum initial investment of $25,000.

Both classes are subject to certain of the same expenses.

    

Cash II Shares are distributed under a 12b-1 Plan adopted by the Fund and also
are subject to shareholder services fees.

Expense differences between classes may affect the performance of each class.

   

To obtain more information and a prospectus for Cash II Shares, investors may
call 1-800-341-7400.

    


                             PERFORMANCE INFORMATION

From time to time, the Fund advertises its yield, effective yield and total
return. The performance figures will be calculated separately for each class of
shares.

Yield represents the annualized rate of income earned on an investment over a
seven-day period. It is the annualized dividends earned during the period on an
investment shown as a percentage of the investment. The effective yield is
calculated similarly to the yield, but when annualized, the income earned by an
investment is assumed to be reinvested daily. The effective yield will be
slightly higher than the yield because of the compounding effect of this assumed
reinvestment.

Total return represents the change, over a specified period of time, in the
value of an investment in the shares after reinvesting all income distributions.
It is calculated by dividing that change by the initial investment and is
expressed as a percentage.

From time to time, advertisements for the Fund may refer to ratings, rankings,
and other information in certain financial publications and/or compare the
Fund's performance to certain indices.


                                      NOTES




<PAGE>



Automated Cash Management Trust
Institutional Service Shares

   
Prospectus September 30, 1998
A Portfolio of Money Market Obligations Trust, an Open-End Management
Investment Company


Automated Cash Management Trust
Institutional Service Shares
Federated Investors Funds
5800 Corporate Drive
Pittsburgh, PA 15237-7000

Distributor
Federated Securities Corp.
Federated Investors Tower
1001 Liberty Avenue
Pittsburgh, PA 15222-3779

Investment Adviser
Federated Management
Federated Investors Tower
1001 Liberty Avenue
Pittsburgh, PA 15222-3779


Custodian
State Street Bank and Trust Company
P.O. Box 8600
Boston, MA 02266-8600

Transfer Agent and Dividend Disbursing Agent
Federated Shareholder Services Company
P.O. Box 8600
Boston, MA 02266-8600

Independent Public Accountants
Arthur Andersen LLP
2100 One PPG Place
Pittsburgh, PA 15222
Federated Securities Corp., Distributor

Cusip 60934N864

G00554-01-SS (9/98)
    








Automated Cash Management Trust
(A Portfolio of Money Market Obligations Trust)
Cash II Shares

Prospectus





The Cash II Shares of Automated Cash Management Trust (the "Fund") offered by
this prospectus represent interests in a portfolio of Money Market Obligations
Trust (the "Trust"), an open-end management investment company (a mutual fund).
The Fund invests in short-term money market securities to achieve stability of
principal and current income consistent with stability of principal.

The shares offered by this prospectus are not deposits or obligations of any
bank, are not endorsed or guaranteed by any bank and are not insured or
guaranteed by the U.S. government, the Federal Deposit Insurance Corporation,
the Federal Reserve Board, or any other government agency. Investment in these
shares involves investment risks, including possible loss of principal. The Fund
attempts to maintain a stable net asset value of $1.00 per share; there can be
no assurance that the Fund will be able to do so.

This prospectus contains the information you should read and know before you
invest in the Fund. Keep this prospectus for future reference.

   

The Fund has also filed a Statement of Additional Information dated September
30, 1998, with the Securities and Exchange Commission ("SEC"). The information
contained in the Statement of Additional Information is incorporated by
reference into this prospectus. You may request a copy of the Statement of
Additional Information or a paper copy of this prospectus, if you have received
your prospectus electronically, free of charge by calling 1-800-341-7400. To
obtain other information, or make inquiries about the Fund, contact your
financial institution. The Statement of Additional Information, material
incorporated by reference into this document, and other information regarding
the Fund is maintained electronically with the SEC at Internet Web site
(http://www.sec.gov).

THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION NOR HAS THE SECURITIES AND EXCHANGE COMMISSION PASSED UPON
THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENSE.

















Prospectus dated September 30, 1998
    



<PAGE>



                                TABLE OF CONTENTS


(To be filed by amendment.)


<PAGE>



                               GENERAL INFORMATION

The Trust was established as a Massachusetts business trust under a Declaration
of Trust dated October 3, 1988. The Declaration of Trust permits the Trust to
offer separate series of shares representing interests in separate portfolios of
securities. The shares in any one portfolio may be offered in separate classes.
With respect to this Fund, as of the date of this prospectus, the Board of
Trustees (the "Trustees") has established two classes of shares known as Cash II
Shares and Institutional Service Shares. This prospectus relates only to Cash II
Shares of the Fund, which are designed primarily for the retail customers of
financial institutions as a convenient means of accumulating an interest in a
professionally managed portfolio investing in short-term money market
securities. A minimum initial investment of $25,000 over a 90-day period is
required except for retirement plans.

The Fund attempts to stabilize the value of a share at $1.00. Shares are
currently sold and redeemed at that price.

   

Year 2000 Statement
 Like other mutual funds and business organizations worldwide, the Fund's
service providers (among them, the adviser, distributor, administrator and
transfer agent) must ensure that their computer systems are adjusted to properly
process and calculate date-related information from and after January 1, 2000.
Many software programs and, to a lesser extent, the computer hardware in use
today cannot distinguish the year 2000 from the year 1900. Such a design flaw
could have a negative impact in the handling of securities trades, pricing and
accounting services. The Fund and its service providers are actively working on
necessary changes to computer systems to deal with the year 2000 issue and
believe that systems will be year 2000 compliant when required. Analysis
continues regarding the financial impact of instituting a year 2000 compliant
program on the Fund's operations.

    


                             INVESTMENT INFORMATION

Investment Objective
The investment objective of the Fund is stability of principal and current
income consistent with stability of principal. This investment objective cannot
be changed without shareholder approval. While there is no assurance that the
Fund will achieve its investment objective, it endeavors to do so by complying
with the diversification and other requirements of Rule 2a-7 under the
Investment Company Act of 1940 which regulates money market mutual funds and by
following the investment policies described in this prospectus.

Investment Policies
The Fund pursues its investment objective by investing in a portfolio of money
market instruments maturing in 13 months or less. The average maturity of the
money market instruments in the Fund's portfolio, computed on a dollar-weighted
basis, will be 90 days or less. Unless indicated otherwise, the investment
policies may not be changed by the Trustees without shareholder approval.

Acceptable Investments
The Fund invests in high quality money market instruments that are either rated
in the highest short-term rating category by one or more nationally recognized
statistical rating organizations ("NRSROs") or are of comparable quality to
securities having such ratings. Examples of these instruments include, but are
not limited to:

n instruments of domestic and foreign banks and savings and loans (such as
  certificates of deposit, demand and time deposits, savings shares, and
  bankers' acceptances) if they have capital, surplus, and undivided profits of
  over $100,000,000, or if the principal amount of the instrument is insured by
  the Bank Insurance Fund ("BIF") which is administered by the Federal Deposit
  Insurance Corporation ("FDIC") or the Savings Association Insurance Fund
  ("SAIF") which is administered by the FDIC. These instruments may include
  Eurodollar Certificates of Deposit ("ECDs"), Yankee Certificates of Deposit
  ("Yankee CDs"), and Eurodollar Time Deposits ("ETDs");

   
n commercial paper rated A-1 by Standard & Poor's, Prime-1 by Moody's Investors
  Service, Inc., or F-1 by Fitch IBCA, Inc., and unrated but of comparable
  quality, including Canadian Commercial Paper ("CCPs") and Europaper.

    
n marketable obligations issued or guaranteed by the U.S. government, its
  agencies, or instrumentalities; and

n repurchase agreements.

The Fund invests only in instruments denominated and payable in U.S. dollars.

Repurchase Agreements
Certain securities in which the Fund invests may be purchased pursuant to
repurchase agreements. Repurchase agreements are arrangements in which banks,
broker/dealers, and other recognized financial institutions sell U. S.
government securities or certificates of deposit to the Fund and agree, at the
time of sale, to repurchase them at a mutually agreed upon time and price within
one year from the date of acquisition. The Fund or its custodian will take
possession of the securities subject to repurchase agreements and these
securities will be marked to market daily. To the extent that the original
seller does not repurchase the securities from the Fund, the Fund could receive
less than the repurchase price on any sale of such securities.

Credit Enhancement
Certain of the Fund's acceptable investments may be credit-enhanced by a
guaranty, letter of credit, or insurance. Any bankruptcy, receivership, default
or change in the credit quality of the party providing the credit enhancement
will adversely affect the quality and marketability of the underlying security
and could cause losses to the Fund and affect its share price.

Demand Features
As a matter of non-fundamental policy, the Fund may acquire securities that are
subject to puts and standby commitments ("demand features") to purchase the
securities at their principal amount (usually with accrued interest) within a
fixed period (usually seven days) following a demand by the Fund. The demand
feature may be issued by the issuer of the underlying securities, a dealer in
the securities, or by another third party, and may not be transferred separately
from the underlying security. The Fund uses these arrangements to provide the
Fund with liquidity and not to protect against changes in the market value of
the underlying securities. The bankruptcy, receivership, or default by the
issuer of the demand feature, or a default on the underlying security or other
event that terminates the demand feature before its exercise, will adversely
affect the liquidity of the underlying security. Demand features that are
exercisable even after a payment default on the underlying security may be
treated as a form of credit enhancement.

When-Issued and Delayed Delivery Transactions
The Fund may purchase short-term U.S. government obligations on a when-issued or
delayed delivery basis. These transactions are arrangements in which the Fund
purchases securities with payment and delivery scheduled for a future time. The
Fund engages in when-issued and delayed delivery transactions only for the
purpose of acquiring portfolio securities consistent with the Fund's investment
objective and policies, not for investment leverage. In when-issued and delayed
delivery transactions, the Fund relies on the seller to complete the
transaction. The seller's failure to deliver the securities may cause the Fund
to miss a price or yield considered to be advantageous. Settlement dates may be
a month or more after entering into these transactions, and the market values of
the securities purchased may vary from the purchase prices.

As a matter of operating policy, the Fund may dispose of a commitment prior to
settlement if the adviser deems it appropriate to do so. In addition, the Fund
may enter into transactions to sell its purchase commitments to third parties at
current market values and simultaneously acquire other commitments to purchase
similar securities at later dates. The Fund may realize short-term profits or
losses upon the sale of such commitments.

Restricted and Illiquid Securities
   

As a matter of operating policy, the Fund may invest in restricted securities.
Restricted securities are any securities in which the Fund may invest pursuant
to its investment objective and policies, but which are subject to restrictions
on resale under federal securities law. Under criteria established by the
Trustees certain restricted securities are determined to be liquid. To the
extent that restricted securities are not determined to be liquid, the Fund will
limit their purchase, together with other illiquid securities, including
repurchase agreements providing for settlement in more than seven days after
notice, to 10% of its net assets.

Investing in Securities of Other Investment Companies
As a matter of operating policy, the Fund may invest its assets in securities of
other investment companies as an efficient means of carrying out its investment
policies. It should be noted that investment companies incur certain expenses,
such as management fees, and, therefore, any investment by the Fund in shares of
other investment companies may be subject to such duplicate expenses.

    

Investment Risks
ECDs, ETDs, Yankee CDs, Canadian Commercial Paper, and Europaper are subject to
different risks than domestic obligations of domestic banks or corporations.
Examples of these risks include international economic and political
developments, foreign governmental restrictions that may adversely affect the
payment of principal or interest, foreign withholding or other taxes on interest
income, difficulties in obtaining or enforcing a judgment against the issuing
entity, and the possible impact of interruptions in the flow of international
currency transactions. Risks may also exist for ECDs, ETDs, and Yankee CDs
because the banks issuing these instruments, or their domestic or foreign
branches, are not necessarily subject to the same regulatory requirements that
apply to domestic banks, such as reserve requirements, loan limitations,
examinations, accounting, auditing, recordkeeping, and the public availability
of information. These factors will be carefully considered by the Fund's adviser
in selecting investments for the Fund.

Investment Limitations
The Fund will not borrow money directly or through reverse repurchase agreements
(arrangements in which the Fund sells a money market instrument for a percentage
of its cash value with an agreement to buy it back on a set date) or pledge
securities except, under certain circumstances, the Fund may borrow up to
one-third of the value of its total assets and pledge up to 10% of the value of
its total assets to secure such borrowings. These investment limitations cannot
be changed without shareholder approval.


                                FUND INFORMATION

Management of the Fund
Board of Trustees
The Fund is managed by a Board of Trustees. The Trustees are responsible for
managing the Fund's business affairs and for exercising all the Trust's powers
except those reserved for the shareholders. An Executive Committee of the Board
of Trustees handles the Board's responsibilities between meetings of the Board.

Investment Adviser
Investment decisions for the Fund are made by Federated Management, the Fund's
investment adviser, subject to direction by the Trustees. The adviser
continually conducts investment research and supervision for the Fund and is
responsible for the purchase and sale of portfolio instruments.

   Advisory Fees
  The adviser receives an annual investment advisory fee equal to 0.50% of the
  Fund's average daily net assets. The adviser may voluntarily choose to waive a
  portion of its fee or reimburse other expenses of the Fund, but reserves the
  right to terminate such waiver or reimbursement at any time at its sole
  discretion.

   Adviser's Background
     

  Federated Management, a Delaware business trust, organized on April 11, 1989,
  is a registered investment adviser under the Investment Advisers Act of 1940.
  It is a subsidiary of Federated Investors, Inc. All of the Class A (voting)
  shares of Federated Investors, Inc. are owned by a trust, the trustees of
  which are John F. Donahue, Chairman and Director of Federated Investors, Inc.,
  Mr. Donahue's wife, and Mr. Donahue's son, J. Christopher Donahue, who is
  President and Director of Federated Investors, Inc.

  Federated Management and other subsidiaries of Federated Investors, Inc. serve
  as investment advisers to a number of investment companies and private
  accounts. Certain other subsidiaries also provide administrative services to a
  number of investment companies. With over $120 billion invested across more
  than 300 funds under management and/or administration by its subsidiaries, as
  of December 31, 1997, Federated Investors, Inc. is one of the largest mutual
  fund investment managers in the United States. With more than 2,000 employees,
  Federated continues to be led by the management who founded the company in
  1955. Federated funds are presently at work in and through approximately 4,000
  financial institutions nationwide.

      

Both the Trust and the adviser have adopted strict codes of ethics governing the
conduct of all employees who manage the Fund and its portfolio securities. These
codes recognize that such persons owe a fiduciary duty to the Fund's
shareholders and must place the interests of shareholders ahead of the
employees' own interests. Among other things, the codes: require preclearance
and periodic reporting of personal securities transactions; prohibit personal
transactions in securities being purchased or sold, or being considered for
purchase or sale, by the Fund; prohibit purchasing securities in initial public
offerings; and prohibit taking profits on securities held for less than sixty
days. Violations of the codes are subject to review by the Trustees, and could
result in severe penalties.


                         DISTRIBUTION OF CASH II SHARES

   

Federated Securities Corp. is the principal distributor for Cash II Shares
of the Fund. It is a Pennsylvania corporation organized on November 14, 1969,
and is the principal distributor for a number of investment companies. Federated
Securities Corp. is a subsidiary of Federated Investors, Inc.

    

Distribution Plan and Shareholder Services
Under a distribution plan adopted in accordance with Rule 12b-1 under the
Investment Company Act of 1940 (the "Plan"), the distributor may be paid a fee
by the Fund in an amount computed at an annual rate of up to 0.25% of the
average daily net asset value of the Fund. The distributor may select financial
institutions such as banks, fiduciaries, custodians for public funds, investment
advisers, and broker/dealers to provide sales services or distribution-related
support services as agents for their clients or customers.

The Plan is a compensation-type Plan. As such, the Fund makes no payments to the
distributor except as described above. Therefore, the Fund does not pay for
unreimbursed expenses of the distributor, including amounts expended by the
distributor in excess of amounts received by it from the Fund, interest,
carrying or other financing charges in connection with excess amounts expended,
or the distributor's overhead expenses. However, the distributor may be able to
recover such amounts or may earn a profit from future payments made by the Fund
under the Plan.

   

In addition, the Fund has entered into a Shareholder Services Agreement with
Federated Shareholder Services, a subsidiary of Federated Investors, Inc., under
which the Fund may make payments up to 0.25% of the average daily net asset
value of its shares to obtain certain personal services for shareholders and to
maintain shareholder accounts. Under the Shareholder Services Agreement,
Federated Shareholder Services will either perform shareholder services directly
or will select financial institutions to perform shareholder services. Financial
institutions will receive fees based upon shares owned by their clients or
customers. The schedules of such fees and the basis upon which such fees will be
paid will be determined from time to time by the Fund and Federated Shareholder
Services.

    

Supplemental Payments to Financial Institutions
In addition to payments made pursuant to the Distribution Plan and Shareholder
Services Agreement, Federated Securities Corp. and Federated Shareholder
Services, from their own assets, may pay financial institutions supplemental
fees for the performance of substantial sales services, distribution-related
support services, or shareholder services. The support may include sponsoring
sales, educational and training seminars for their employees, providing sales
literature, and engineering computer software programs that emphasize the
attributes of the Fund. Such assistance will be predicated upon the amount of
shares the financial institution sells or may sell, and/or upon the type and
nature of sales or marketing support furnished by the financial institution. Any
payments made by the distributor may be reimbursed by the Fund's investment
adviser or its affiliates.


                           ADMINISTRATION OF THE FUND

Administrative Services
   

Federated Services Company, a subsidiary of Federated Investors, Inc., provides
administrative personnel and services (including certain legal and financial
reporting services) necessary to operate the Fund at an annual rate which
relates to the average aggregate daily net assets of all funds advised by
affiliates of Federated Investors, Inc. specified below:

    

Maximum  Average Aggregate
  Fee  Daily Net Assets

0.150% on the first $250 million 0.125%on the next $250 million 0.100%on the
 next $250 million
 0.075%on assets in excess of $750 million


The administrative fee received during any fiscal year shall be at least
$125,000 per portfolio and $30,000 per each additional class of shares.
Federated Services Company may choose voluntarily to waive a portion of its fee.


                                 NET ASSET VALUE

The Fund attempts to stabilize the net asset value of shares at $1.00 by valuing
the portfolio securities using the amortized cost method. The net asset value
per share is determined by subtracting liabilities attributable to Cash II
Shares from the value of Fund assets attributable to Cash II Shares, and
dividing the remainder by the number of Cash II Shares outstanding. The Fund
cannot guarantee that its net asset value will always remain at $1.00 per share.

   

The net asset value is determined at 5:00 p.m. (Eastern time), Monday through
Friday, except on New Year's Day, Martin Luther King, Jr. Day, Presidents' Day,
Good Friday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and
Christmas Day.

    


                             HOW TO PURCHASE SHARES

Shares are sold at their net asset value, without a sales charge, next
determined after an order is received, on days which the New York Stock Exchange
is open for business. Shares may be purchased as described below, either through
a financial institution (such as a bank or broker/dealer) or by wire or by check
directly from the Fund, with a minimum initial investment of $25,000 or more
over a 90-day period. Financial institutions may impose different minimum
investment requirements on their customers.

In connection with any sale, Federated Securities Corp. may from time to time
offer certain items of nominal value to any shareholder or investor. The Fund
reserves the right to reject any purchase request. An account must be
established at a financial institution or by completing, signing, and returning
the new account form available from the Fund before shares can be purchased.

Purchasing Shares Through a Financial Institution
Investors may purchase shares through a financial institution which has a sales
agreement with the distributor. Orders are considered received when the Fund
receives payment by wire or converts payment by check from the financial
institution into federal funds. It is the financial institution's responsibility
to transmit orders promptly. Financial institutions may charge additional fees
for their services.

Purchasing Shares by Wire
Shares may be purchased by wire by calling the Fund before 5:00 p.m. Eastern
time to place an order. The order is considered received immediately. Payment by
federal funds must be received before 5:00 p.m. Eastern time in order to begin
earning dividends that same day. Federal funds should be wired as follows:
Federated Shareholder Services Company, c/o State Street Bank and Trust Company,
Boston, MA; Attention: EDGEWIRE; For Credit to: Automated Cash Management
Trust--Cash II Shares; Fund Number (this number can be found on the account
statement or by contacting the Fund); Group Number or Order Number; Nominee or
Institution Name; and ABA Number 011000028. Shares cannot be purchased by wire
on holidays when wire transfers are restricted. Questions on wire purchases
should be directed to your shareholder services representative at the telephone
number listed on your account statement.

Purchasing Shares by Check
Shares may be purchased by sending a check to Federated Shareholder Services
Company, P.O. Box 8600, Boston, MA 02266-8600. The check should be made payable
to Automated Cash Management Trust--Cash II Shares. Please include an account
number on the check. Orders by mail are considered received when payment by
check is converted into federal funds (normally the business day after the check
is received), and shares begin earning dividends the next day.

Invest-by-Phone
   

Once an account has been opened, a shareholder may use invest-by-phone for
investments if an authorization form has been filed with Federated Shareholder
Services Company, the transfer agent for shares of the Fund. Approximately two
weeks after sending the form to Federated Shareholder Services Company, the
shareholder may call Federated Shareholder Services Company to purchase shares.
Federated Shareholder Services Company will send a request for monies to the
shareholder's commercial bank, savings bank, or credit union ("bank") via the
Automated Clearing House ("ACH"). The shareholder's bank, which must be an ACH
member, will then forward the monies to Federated Shareholder Services Company.
The purchase is normally entered the next business day after the initial phone
request. For further information and an application, call the Fund.

    

By Direct Deposit
Shareholders of the Fund may have their Social Security, Railroad Retirement, VA
Compensation or Pension, Civil Service Retirement, and certain other retirement
payments invested directly into their Fund account. Shareholders must complete
an application and file it with Federated Shareholder Services Company prior to
use of this program. Allow 60 to 90 days for the application to be processed.

Automatic Investments
Investors may establish accounts with their financial institutions to have cash
accumulations automatically invested in the Fund. The investments may be made on
predetermined dates or when the investor's account reaches a certain level.
Participating financial institutions are responsible for prompt transmission of
orders relating to the program, and they may charge for their services.
Investors should read this prospectus along with the financial institution's
agreement or literature describing these services and fees.

Subaccounting Services
Financial institutions are encouraged to open single master accounts. A
subaccounting system is available through the transfer agent to minimize
internal recordkeeping requirements. The transfer agent charges a fee based on
the level of subaccounting services rendered. Financial institutions may charge
or pass through subaccounting fees as part of or in addition to normal trust or
agency account fees. They may also charge fees for other services provided which
may be related to the ownership of Fund shares. This prospectus should,
therefore, be read together with any agreement between the customer and the
financial institution with regard to the services provided, the fees charged for
those services, and any restrictions and limitations imposed.

Special Purchase Features
Systematic Investment Program
   

A minimum of $100 can be automatically withdrawn periodically from the
shareholder's checking account at an ACH member and invested in Fund shares.
Shareholders should contact their financial institution or the Fund to
participate in this program.

    


                              HOW TO REDEEM SHARES

Shares are redeemed at their net asset value next determined after Federated
Shareholder Services Company receives the redemption request. Redemptions will
be made on days on which the Fund computes its net asset value. Redemption
requests must be received in proper form and can be made as described below.

Redeeming Shares Through a Financial Institution
Shares may be redeemed by contacting the shareholder's financial institution.
Shares will be redeemed at the net asset value next determined after Federated
Shareholder Services Company receives the redemption request. According to the
shareholder's instructions, redemption proceeds can be sent to the financial
institution or to the shareholder by check or by wire. The financial institution
is responsible for promptly submitting redemption requests and providing proper
written redemption instructions. Customary fees and commissions may be charged
by the financial institution for this service.

Redeeming Shares by Telephone
Redemptions in minimum amounts of $1,000 may be made by calling the Fund
provided the Fund has a properly completed authorization form. These forms can
be obtained from Federated Securities Corp. Proceeds from redemption requests
received before 5:00 p.m. (Eastern time) will be wired the same day to the
shareholder's account at a domestic commercial bank which is a member of the
Federal Reserve System, but will not include that day's dividend. Proceeds from
redeemed shares purchased by check or through ACH will not be wired until that
method of payment has cleared. Proceeds from redemption requests on holidays
when wire transfers are restricted will be wired the following business day.
Questions about telephone redemptions on days when wire transfers are restricted
should be directed to your shareholder services representative at the telephone
number listed on your account statement.

Telephone instructions may be recorded and if reasonable procedures are not
followed by the Fund, it may be liable for losses due to unauthorized or
fraudulent telephone instructions.

In the event of drastic economic or market changes, a shareholder may experience
difficulty in redeeming by telephone. If this occurs, "Redeeming Shares by Mail"
should be considered. If at any time the Fund shall determine it necessary to
terminate or modify the telephone redemption privilege, shareholders would be
promptly notified.

Redeeming Shares by Mail
Shares may be redeemed in any amount by mailing a written request to: Federated
Shareholder Services Company, P.O. Box 8600, Boston, MA 02266-8600. If share
certificates have been issued, they should be sent unendorsed with the written
request by registered or certified mail to the address noted above.

The written request should state: the Fund name and the class designation; the
account name as registered with the Fund; the account number; and the number of
shares to be redeemed or the dollar amount requested. All owners of the account
must sign the request exactly as the shares are registered. Normally, a check
for the proceeds is mailed within one business day, but in no event more than
seven days, after the receipt of a proper written redemption request. Dividends
are paid up to and including the day that a redemption request is processed.

Shareholders requesting a redemption of any amount to be sent to an address
other than that on record with the Fund or a redemption payable other than to
the shareholder of record must have their signatures guaranteed by a commercial
or savings bank, trust company or savings association whose deposits are insured
by an organization which is administered by the Federal Deposit Insurance
Corporation; a member firm of a domestic stock exchange; or any other "eligible
guarantor institution," as defined in the Securities Exchange Act of 1934. The
Fund does not accept signatures guaranteed by a notary public.

Special Redemption Features
Check Writing
Upon request, a checking account will be established to allow shareholders to
redeem their Fund shares. Shareholder accounts will continue to receive the
daily dividend declared on the shares to be redeemed until the check is
presented to UMB Bank, N.A., the bank responsible for administering the check
writing program, for payment. However, checks should never be made payable or
sent to UMB Bank, N.A. or the Fund to redeem shares, and a check may not be
written to close an account.

Debit Card
Upon request, a debit account will be established. This account allows
shareholders to redeem shares by using a debit card. A fee will be charged to
the account for this service.

Systematic Withdrawal Program
If a shareholder's account has a value of at least $25,000, other than
retirement accounts subject to required minimum distributions, a systematic
withdrawal program may be established whereby automatic redemptions are made
from the account and transferred electronically to any commercial bank, savings
bank, or credit union that is an ACH member. Shareholders may apply for
participation in this program through their financial institutions or the Fund.


                          ACCOUNT AND SHARE INFORMATION

Dividends
Dividends are declared daily and paid monthly. Dividends are automatically
reinvested on payment dates in additional shares of the Fund unless cash
payments are requested by writing to the Fund. Shares purchased by wire before
5:00 p.m. (Eastern time) begin earning dividends that day. Shares purchased by
check begin earning dividends the day after the check is converted into federal
funds.

Capital Gains
The Fund does not expect to realize any capital gains or losses. If capital
gains or losses were to occur, they could result in an increase or decrease in
dividends. The Fund will distribute in cash or additional shares any realized
net long-term capital gains at least once every 12 months.

   

Account Activity
Shareholders will receive periodic statements reporting all account activity,
including dividends paid. The Fund will not issue share certificates.
    

Accounts with Low Balances
Due to the high cost of maintaining accounts with low balances, the Fund may
redeem shares in any account, except accounts maintained by retirement plans,
and pay the proceeds to the shareholder if the account balance falls below a
required minimum value of $10,000 due to shareholder redemptions. Before shares
are redeemed to close an account, the shareholder is notified in writing and
allowed 30 days to purchase additional shares to meet the minimum requirement.

Voting Rights
Each share of the Trust owned by a shareholder gives that shareholder one vote
in Trustee elections and other matters submitted to shareholders for vote. All
shares of all classes of each portfolio in the Trust have equal voting rights,
except that in matters affecting only a particular portfolio or class, only
shareholders of that portfolio or class are entitled to vote. The Trust is not
required to hold annual shareholder meetings. Shareholder approval will be
sought only for certain changes in the Trust's or the Fund's operation and for
election of Trustees under certain circumstances.

Trustees may be removed by the Trustees or by shareholders at a special meeting.
A special meeting shall be called by the Trustees upon the written request of
shareholders owning at least 10% of the outstanding shares of the Trust.


                                 TAX INFORMATION

Federal Income Tax
The Fund will pay no federal income tax because it expects to meet requirements
of the Internal Revenue Code applicable to regulated investment companies and to
receive the special tax treatment afforded to such companies. The Fund will be
treated as a single, separate entity for federal income tax purposes so that
income (including capital gains) and losses realized by the Trust's other
portfolios will not be combined for tax purposes with those realized by the
Fund.

Unless otherwise exempt, shareholders are required to pay federal income tax on
any dividends and other distributions received. This applies whether dividends
and distributions are received in cash or as additional shares.

State and Local Taxes
   

    

Shareholders are urged to consult their own tax advisers regarding the status of
their accounts under state and local tax laws.


                             OTHER CLASSES OF SHARES

   

The Fund also offers another class of shares. Institutional Service Shares are
sold at net asset value primarily to retail and private banking customers of
financial institutions and are subject to a minimum initial investment of
$25,000.

Both classes are subject to certain of the same expenses.

    

Institutional Service Shares are distributed with no 12b-1 Plan but are subject
to shareholder services fees.

Expense differences between classes may affect the performance of each class.

   

To obtain more information and a prospectus for Institutional Service Shares,
investors may call 1-800-341-7400.

    


                             PERFORMANCE INFORMATION

From time to time, the Fund advertises its yield, effective yield and total
return. The performance figures will be calculated separately for each class of
shares.

Yield represents the annualized rate of income earned on an investment over a
seven-day period. It is the annualized dividends earned during the period on an
investment shown as a percentage of the investment. The effective yield is
calculated similarly to the yield, but when annualized, the income earned by an
investment is assumed to be reinvested daily. The effective yield will be
slightly higher than the yield because of the compounding effect of this assumed
reinvestment.

Total return represents the change, over a specified period of time, in the
value of an investment in the shares after reinvesting all income distributions.
It is calculated by dividing that change by the initial investment and is
expressed as a percentage.

From time to time, advertisements for the Fund may refer to ratings, rankings,
and other information in certain financial publications and/or compare the
Fund's performance to certain indices.


                                      NOTES




<PAGE>



Automated Cash Management Trust
Cash II Shares

Prospectus
   
September 30, 1998
A Portfolio of Money Market Obligations Trust, an Open-End Management
Investment Company


Automated Cash Management Trust Cash II Shares
Federated Investors Funds
5800 Corporate Drive
Pittsburgh, PA 15237-7000

Distributor
Federated Securities Corp.
Federated Investors Tower
1001 Liberty Avenue
Pittsburgh, PA 15222-3779

Investment Adviser
Federated Management
Federated Investors Tower
1001 Liberty Avenue
Pittsburgh, PA 15222-3779
    

Custodian
State Street Bank and Trust Company
P.O. Box 8600
Boston, MA 02266-8600

Transfer Agent and Dividend Disbursing Agent
Federated Shareholder Services Company
P.O. Box 8600
Boston, MA 02266-8600

Independent Public Accountants
Arthur Andersen LLP
2100 One PPG Place
Pittsburgh, PA 15222
Federated Securities Corp., Distributor

Cusip 60934N831
   
G00554-03-CII (9/98)
    









Automated Cash Management Trust
(A Portfolio of Money Market Obligations Trust)
Cash II Shares
Institutional Service Shares

Statement of Additional Information





This Statement of Additional Information should be read with the prospectuses of
Automated Cash Management Trust (the "Fund"), a portfolio of Money Market
Obligations Trust (the "Trust") dated September 30, 1998. This Statement is not
a prospectus. You may request a copy of a prospectus or a paper copy of this
Statement, if you have received it electronically, free of charge by calling
1-800-341-7400.

   

Federated Investors Funds

5800 Corporate Drive
Pittsburgh, PA 15237-7000

Statement dated September 30, 1998 Cusip 60934N864 Cusip 60934N831 G00554-02
(9/98)     



<PAGE>



                                TABLE OF CONTENTS

  (To be filed by amendment.)



<PAGE>





                                  FUND HISTORY

Effective July 30, 1994, Automated Cash Management Trust was reorganized into an
investment portfolio of Money Market Obligations Trust. The Trust is registered
under the Investment Company Act of 1940 as an open-end, management investment
company. The Trust consists of six diversified portfolios.


                               INVESTMENT POLICIES

Unless indicated otherwise, the policies described below may not be changed by
the Board of Trustees (the "Trustees") without shareholder approval.
Shareholders will be notified before any material change in these policies
becomes effective.

Acceptable Investments
When determining whether a security presents minimal credit risks, the
investment adviser will consider the creditworthiness of: the issuer of the
security; the issuer of any demand feature applicable to the security; or any
guarantor of either the security or any demand feature.

U.S. Government Securities

The types of U.S. government securities in which the Fund may invest
generally include direct obligations of the U.S. Treasury (such as U.S. Treasury
bills, notes, and bonds) and obligations issued or guaranteed by U.S. government
agencies or instrumentalities. These securities are backed by:

  o the full faith and credit of the U.S. Treasury;

  o the issuer's right to borrow from the U.S. Treasury;

  o the discretionary authority of the U.S. government to purchase certain
    obligations of agencies or instrumentalities; or

  o the credit of the agency or instrumentality issuing the obligations.

Bank Instruments
The instruments of banks and savings associations whose deposits are insured by
the Bank Insurance Fund ("BIF") or the Savings Association Insurance Fund
("SAIF"), such as certificates of deposit, demand and time deposits, savings
shares, and bankers' acceptances, are not necessarily guaranteed by those
organizations. In addition to domestic bank instruments, the Fund may invest in:
Eurodollar Certificates of Deposit issued by foreign branches of U.S. or foreign
banks; Eurodollar Time Deposits, which are U.S. dollar-denominated deposits in
foreign branches of U.S. or foreign banks; Canadian Time Deposits, which are
U.S. dollar-denominated deposits issued by branches of major Canadian banks
located in the United States; and Yankee Certificates of Deposit, which are U.S.
dollar-denominated certificates of deposit issued by U.S. branches of foreign
banks and held in the United States.

Ratings
   

An NRSRO's highest rating category is determined without regard for
sub-categories and gradations. For example, securities rated A-1 or A-1+ by
Standard & Poor's ("S&P"), Prime-1 by Moody's Investors Service, Inc.
("Moody's"), or F-1 (+ or -) by Fitch IBCA, Inc. ("Fitch") are all considered
rated in the highest short-term rating category. The Fund will follow applicable
regulations in determining whether a security rated by more than one NRSRO can
be treated as being in the highest short-term rating category; currently, such
securities must be rated by two NRSROs in their highest rating category. See
"Regulatory Compliance."

    

When-Issued and Delayed Delivery Transactions
These transactions are made to secure what is considered to be an advantageous
price or yield for the Fund. No fees or other expenses, other than normal
transaction costs, are incurred. However, liquid assets of the Fund in a dollar
amount sufficient to make payment for the securities to be purchased are:
segregated on the Fund's records at the trade date; marked to market daily; and
maintained until the transaction is settled.

Repurchase Agreements
The Fund or its custodian will take possession of the securities subject to
repurchase agreements, and these securities will be marked to market daily. In
the event that a defaulting seller filed for bankruptcy or became insolvent,
disposition of such securities by the Fund might be delayed pending court
action. The Fund believes that under the regular procedures normally in effect
for custody of the Fund's portfolio securities subject to repurchase agreements,
a court of competent jurisdiction would rule in favor of the Fund and allow
retention or disposition of such securities. The Fund will only enter into
repurchase agreements with banks and other recognized financial institutions,
such as broker/dealers, which are deemed by the Fund's adviser to be
creditworthy pursuant to guidelines established by the Trustees.

Reverse Repurchase Agreements
The Fund may also enter into reverse repurchase agreements. These transactions
are similar to borrowing cash. In a reverse repurchase agreement, the Fund
transfers possession of a portfolio instrument in return for a percentage of the
instrument's market value in cash and agrees that on a stipulated date in the
future the Fund will repurchase the portfolio instrument by remitting the
original consideration plus interest at an agreed-upon rate. The use of reverse
repurchase agreements may enable the Fund to avoid selling portfolio instruments
at a time when a sale may be deemed to be disadvantageous, but does not ensure
this result. However, liquid assets of the Fund, in a dollar amount sufficient
to make payment for the securities to be purchased, are: segregated on the
Fund's records at the trade date; marked to market daily; and maintained until
the transaction is settled.

Credit Enhancement
The Fund typically evaluates the credit quality and ratings of credit-enhanced
securities based upon the financial condition and ratings of the party providing
the credit enhancement (the "credit enhancer"), rather than the issuer. However,
credit-enhanced securities will not be treated as having been issued by the
credit enhancer for diversification purposes unless the Fund has invested more
than 10% of its assets in securities issued, guaranteed or otherwise credit
enhanced by the credit enhancer, in which case the securities will be treated as
having been issued by both the issuer and the credit enhancer. The Fund may have
more than 25% of its total assets invested in securities credit enhanced by
banks.

The following policies are non-fundamental and may be changed by the Trustees
without shareholder approval. Shareholders will be notified before any material
change in these policies become effective.

Restricted and Illiquid Securities
   

The ability of the Trustees to determine the liquidity of certain restricted
securities is permitted under a Securities and Exchange Commission staff
position set forth in the adopting release for Rule 144A under the Securities
Act of 1933. The Trustees consider the following criteria in determining the
liquidity of certain restricted securities:

o     the frequency of trades and quotes for the security;
o the number of dealers willing to purchase or sell the security and the number
of other potential buyers; o dealer undertakings to make a market in the
security; and o the nature of the security and the nature of the marketplace
trades.

Investing in Securities of Other Investment Companies
The Fund may invest in the securities of affiliated money market funds as an
efficient means of managing the Fund's uninvested cash.

    


                             INVESTMENT LIMITATIONS

Selling Short and Buying on Margin
The Fund will not sell any money market instruments short or purchase any money
market instruments on margin but may obtain such short-term credits as may be
necessary for clearance of purchases and sales of money market instruments.

Issuing Senior Securities and Borrowing Money
The Fund will not issue senior securities except that the Fund may borrow money
directly or through reverse repurchase agreements in amounts up to one-third of
the value of its total assets, including the amounts borrowed.

The Fund will not borrow money or engage in reverse repurchase agreements for
investment leverage, but rather as a temporary, extraordinary, or emergency
measure or to facilitate management of the portfolio by enabling the Fund to
meet redemption requests when the liquidation of portfolio securities is deemed
to be inconvenient or disadvantageous. The Fund will not purchase any securities
while borrowings in excess of 5% of the value of its total assets are
outstanding.

Pledging Assets
The Fund will not mortgage, pledge, or hypothecate any assets except as
necessary to secure permitted borrowings. In those cases, it may mortgage,
pledge or hypothecate assets having a market value not exceeding the lesser of
the dollar amounts borrowed or 10% of the value of total assets at the time of
the borrowing.

Lending Cash or Securities
The Fund will not lend any of its assets, except that it may purchase or hold
money market instruments, including repurchase agreements, permitted by its
investment objective and policies.

Investing in Commodities, Minerals, or Real Estate
The Fund will not invest in commodities, commodity contracts, oil, gas, or other
mineral programs or real estate, except that it may purchase money market
instruments issued by companies that invest in or sponsor interests.

Underwriting
The Fund will not underwrite any issue of securities except as it may be deemed
to be an underwriter under the Securities Act of 1933 in connection with the
sale of restricted securities which the Fund may purchase pursuant to its
investment objective, policies, and limitations.

Concentration of Investments
The Fund will not purchase money market instruments if, as a result of such
purchase, more than 25% of the value of its total assets would be invested in
one industry. However, investing in bank instruments (such as time and demand
deposits and certificates of deposit), U.S. government obligations, or
instruments secured by these money market instruments, such as repurchase
agreements, shall not be considered investments in any one industry.

Acquiring Securities
The Fund will not acquire the voting securities of any issuer. It will not
invest in securities issued by any other investment company, except as part of a
merger, consolidation, or other acquisition. It will not invest in securities of
a company for the purpose of exercising control or management.

   

    

Investing in Issuers Whose Securities are Owned by Officers and Trustees
The Fund will not purchase or retain the securities of any issuer if the
officers and Trustees of the Trust or its investment adviser, owning
individually more than 0.50 of 1% of the issuer's securities, together
beneficially own more than 5% of the issuer's securities.

The above limitations cannot be changed without shareholder approval.

For purposes of the above limitations, the Fund considers certificates of
deposit and demand and time deposits issued by a U.S. branch of a domestic bank
or savings association having capital, surplus, and undivided profits in excess
of $100,000,000 at the time of investment to be "cash items." Except with
respect to borrowing money, if a percentage limitation is adhered to at the time
of investment, a later increase or decrease in percentage resulting from any
change in value or net assets will not result in a violation of such limitation.

The Fund did not borrow money or pledge securities in excess of 5% of the value
of its net assets during the last fiscal year and has no present intent to do so
during the coming fiscal year.

   

Investing in Restricted and Illiquid Securities
The Trust will not invest more than 10% of the value of its net assets in
illiquid securities including certain restricted securities not determined to be
liquid under criteria established by the trustees and repurchase agreements
providing for settlement in more than seven days after notice.

    

Regulatory Compliance
The Fund may follow non-fundamental operational policies that are more
restrictive than its fundamental investment limitations, as set forth in the
prospectus and this Statement of Additional Information, in order to comply with
applicable laws and regulations, including the provisions of and regulations
under the Investment Company Act of 1940. In particular, the Fund will comply
with the various requirements of Rule 2a-7, which regulates money market mutual
funds. For example, with limited exceptions, Rule 2a-7 prohibits the investment
of more than 5% of the Fund's total assets in the securities of any one issuer,
although the Fund's investment limitation only requires such 5% diversification
with respect to 75% of its assets. The Fund will invest more than 5% of its
assets in any one issuer only under the circumstances permitted by Rule 2a-7.
The Fund also will determine the effective maturity of its investments, as well
as its ability to consider a security as having received the requisite
short-term ratings by NRSROs, according to Rule 2a-7. The Fund may change these
operational policies to reflect changes in the laws and regulations without the
approval of its shareholders.


                    MONEY MARKET OBLIGATIONS TRUST MANAGEMENT

Officers and Trustees are listed with their addresses, birthdates, present
positions with Money Market Obligations Trust, and principal occupations.

   


John F. Donahue@*
Federated Investors Tower
Pittsburgh, PA
Birthdate:  July 28, 1924

Chairman and Trustee

Chief Executive Officer and Director or Trustee of the Funds; Chairman and
Director, Federated Investors, Inc.; Chairman and Trustee, Federated Advisers,
Federated Management, and Federated Research; Chairman and Director, Federated
Research Corp. and Federated Global Research Corp.; Chairman, Passport Research,
Ltd.; Mr. Donahue is the father of J. Christopher Donahue, Executive Vice
President of the Company.


Thomas G. Bigley
15 Old Timber Trail
Pittsburgh, PA
Birthdate:  February 3, 1934

Trustee

Director or Trustee of the Funds; Director, Member of Executive Committee,
Children's Hospital of Pittsburgh; formerly, Senior Partner, Ernst & Young LLP;
Director, MED 3000 Group, Inc.; Director, Member of Executive Committee,
University of Pittsburgh.


John T. Conroy, Jr.
Wood/IPC Commercial Department
John R. Wood and Associates, Inc., Realtors
3255 Tamiami Trail North
Naples, FL
Birthdate:  June 23, 1937

Trustee

Director or Trustee of the Funds; President, Investment Properties
Corporation; Senior Vice-President, John R. Wood and Associates, Inc., Realtors;
Partner or Trustee in private real estate ventures in Southwest Florida;
formerly, President, Naples Property Management, Inc. and Northgate Village
Development Corporation.


William J. Copeland
One PNC Plaza - 23rd Floor
Pittsburgh, PA
Birthdate:  July 4, 1918

Trustee

Director or Trustee of the Funds; Director and Member of the Executive
Committee, Michael Baker, Inc.; formerly, Vice Chairman and Director, PNC Bank,
N.A., and PNC Bank Corp.; Director, Ryan Homes, Inc.; Director, United Refinery;
Chairman, Pittsburgh Foundation; Director, Forbes Fund; Chairman, Pittsburgh
Civic Light Opera.


J. Christopher Donahue *
Federated Investors Tower
Pittsburgh, PA
Birthdate:  April 11, 1949

President and Trustee

President or Executive Vice President of the Funds; President and Director,
Federated Investors, Inc.; President and Trustee, Federated Advisers, Federated
Management, and Federated Research; President and Director, Federated Research
Corp. and Federated Global Research Corp.; President, Passport Research, Ltd.;
Trustee, Federated Shareholder Services Company and Federated Shareholder
Services; Director, Federated Services Company; Director or Trustee of some of
the Funds. Mr. Donahue is the son of John F. Donahue, Chairman and Trustee of
the Company.


James E. Dowd, Esq.
571 Hayward Mill Road
Concord, MA
Birthdate:  May 18, 1922

Trustee

Director or Trustee of the Funds; Attorney-at-law; Director, The Emerging
Germany Fund, Inc.; formerly, President, Boston Stock Exchange, Inc.; Regional
Administrator, United States Securities and Exchange Commission.




<PAGE>



Lawrence D. Ellis, M.D.*
3471 Fifth Avenue, Suite 1111
Pittsburgh, PA
Birthdate:  October 11, 1932

Trustee

Director or Trustee of the Funds; Professor of Medicine, University of
Pittsburgh; Medical Director, University of Pittsburgh Medical Center Downtown;
Hematologist, Oncologist, and Internist, Presbyterian and Montefiore Hospitals;
formerly, Member, National Board of Trustees, Leukemia Society of America.


Edward L. Flaherty, Jr., Esq. @
Miller, Ament, Henny & Kochuba
205 Ross Street
Pittsburgh, PA
Birthdate:  June 18, 1924

Trustee

Director or Trustee of the Funds; Attorney, Of Counsel, Miller, Ament, Henny &
Kochuba; Director, Eat'N Park Restaurants, Inc.; formerly, Counsel, Horizon
Financial, F.A., Western Region; Partner, Meyer and Flaherty.


Peter E. Madden
One Royal Palm Way
100 Royal Palm Way
Palm Beach, FL
Birthdate:  March 16, 1942

Trustee

Director or Trustee of the Funds; formerly, Representative, Commonwealth of
Massachusetts General Court; President, State Street Bank and Trust Company and
State Street Corporation; Director, VISA USA and VISA International; Chairman
and Director, Massachusetts Banker Association; Director, Depository Trust
Corporation.


John E. Murray, Jr., J.D., S.J.D.
President, Duquesne University
Pittsburgh, PA
Birthdate:  December 20, 1932

Trustee

Director or Trustee of the Funds; President, Law Professor, Duquesne University;
Consulting Partner, Mollica & Murray; formerly, Dean and Professor of Law,
University of Pittsburgh School of Law; Dean and Professor of Law, Villanova
University School of Law.




<PAGE>



Wesley W. Posvar
1202 Cathedral of Learning
University of Pittsburgh
Pittsburgh, PA
Birthdate:  September 14, 1925

Trustee

Director or Trustee of the Funds; President, World Society for Ekistics, Athens;
Professor, International Politics; Management Consultant; Trustee, Carnegie
Endowment for International Peace, RAND Corporation, Online Computer Library
Center, Inc., National Defense University and U.S. Space Foundation; President
Emeritus, University of Pittsburgh; Founding Chairman, National Advisory Council
for Environmental Policy and Technology, Federal Emergency Management Advisory
Board and Czech Management Center, Prague; formerly, Professor, United States
Military Academy; Professor, United States Air Force Academy.


Marjorie P. Smuts
4905 Bayard Street
Pittsburgh, PA
Birthdate:  June 21, 1935

Trustee

Director or Trustee of the Funds; Public relations/Marketing/Conference
Planning; formerly, National Spokesperson, Aluminum Company of America; business
owner.


Edward C. Gonzales
Federated Investors Tower
Pittsburgh, PA
Birthdate:  October 22, 1930

Executive Vice President

Trustee or Director of some of the Funds; President, Executive Vice President
and Treasurer of some of the Funds; Vice Chairman, Federated Investors, Inc.;
Vice President, Federated Advisers, Federated Management, Federated Research,
Federated Research Corp., Federated Global Research Corp. and Passport Research,
Ltd.; Executive Vice President and Director, Federated Securities Corp.;
Trustee, Federated Shareholder Services Company.


John W. McGonigle
Federated Investors Tower
Pittsburgh, PA
Birthdate:  October 26, 1938

Executive Vice President , Secretary and Treasurer

Executive Vice President and Secretary of the Funds; Treasurer of some of the
Funds; Executive Vice President, Secretary, and Director, Federated Investors,
Inc.; Trustee, Federated Advisers, Federated Management, and Federated Research;
Director, Federated Research Corp. and Federated Global Research Corp.; Trustee,
Federated Shareholder Services Company; Director, Federated Services Company;
President and Trustee, Federated Shareholder Services; Director, Federated
Securities Corp.




<PAGE>



Richard B. Fisher
Federated Investors Tower
Pittsburgh, PA
Birthdate:  May 17, 1923

Vice President

President or Vice President of some of the Funds; Director or Trustee of some of
the Funds; Executive Vice President, Federated Investors, Inc.; Chairman and
Director, Federated Securities Corp.


*    This Trustee is deemed to be an "interested person" as defined in the
     Investment Company Act of 1940.

@    Member of the Executive Committee. The Executive Committee of the Board of
     Trustees handles the responsibilities of the Board between meetings of the
     Board.

    

As referred to in the list of Trustees and Officers, "Funds" includes the
following investment companies:

111 Corcoran Funds; Arrow Funds; Automated Government Money Trust; Blanchard
Funds; Blanchard Precious Metals Fund, Inc.; Cash Trust Series II; Cash Trust
Series, Inc.; DG Investor Series; Edward D. Jones & Co. Daily Passport Cash
Trust; Federated Adjustable Rate U.S. Government Fund, Inc.; Federated American
Leaders Fund, Inc.; Federated ARMs Fund; Federated Equity Funds; Federated
Equity Income Fund, Inc.; Federated Fund for U.S. Government Securities, Inc.;
Federated GNMA Trust; Federated Government Income Securities, Inc.; Federated
Government Trust; Federated High Income Bond Fund, Inc.; Federated High Yield
Trust; Federated Income Securities Trust; Federated Income Trust; Federated
Index Trust; Federated Institutional Trust; Federated Insurance Series;
Federated Investment Portfolios; Federated Investment Trust; Federated Master
Trust; Federated Municipal Opportunities Fund, Inc.; Federated Municipal
Securities Fund, Inc.; Federated Municipal Trust; Federated Short-Term Municipal
Trust; Federated Short-Term U.S. Government Trust; Federated Stock and Bond
Fund, Inc.; Federated Stock Trust; Federated Tax-Free Trust; Federated Total
Return Series, Inc.; Federated U.S. Government Bond Fund; Federated U.S.
Government Securities Fund: 1-3 Years; Federated U.S. Government Securities
Fund: 2-5 Years; Federated U.S. Government Securities Fund: 5-10 Years;
Federated Utility Fund, Inc.; First Priority Funds; Fixed Income Securities,
Inc.; High Yield Cash Trust; Intermediate Municipal Trust; International Series,
Inc.; Investment Series Funds, Inc.; Investment Series Trust; Liberty Term
Trust, Inc.--1999; Liberty U.S. Government Money Market Trust; Liquid Cash
Trust; Managed Series Trust; Money Market Management, Inc.; Money Market
Obligations Trust; Money Market Obligations Trust II; Money Market Trust;
Municipal Securities Income Trust; Newpoint Funds; RIMCO Monument Funds;
Targeted Duration Trust; Tax-Free Instruments Trust; The Planters Funds; The
Virtus Funds; Trust for Financial Institutions; Trust for Government Cash
Reserves; Trust for Short-Term U.S. Government Securities; Trust for U.S.
Treasury Obligations; Wesmark Funds; and World Investment Series, Inc.

Share Ownership
Officers and Trustees as a group own less than 1% of the Fund.

   

As of July 21, 1998, the following shareholders of record owned 5% or more of
the outstanding Institutional Service Shares of the Fund: BHC Securities, Inc.,
Philadelphia, Pennsylvania owned approximately 265,853,400 shares (15.34%);
Stephens, Inc., Little Rock, Arkansas owned approximately 95,220,128 shares
(5.49%); Var & Co., St. Paul, Minnesota, owned approximately 89,498,746 shares
(5.16%); and Fiduciary Trust Company International, New York, New York owned
approximately 156,417,600 shares (9.02%).

As of July 21, 1998, no shareholder of record owned 5% or more of the
outstanding Cash II Shares of the Fund.

    



<PAGE>


Trustees Compensation


<TABLE>
<CAPTION>



                      AGGREGATE
NAME,                COMPENSATION
POSITION WITH              FROM             TOTAL COMPENSATION PAID
Trust                    Trust*#            FROM FUND COMPLEX
   




<S>                      <C>            <C>
John F. Donahue             $0          $0 for the Trust and
Chairman and Trustee                    56 other investment companies in the Fund Complex

Thomas G. Bigley            $0          $0 for the Trust and
Trustee                                 56 other investment companies in the Fund Complex

John T. Conroy, Jr.,        $0          $0 for the Trust and
Trustee                                 56 other investment companies in the Fund Complex

William J. Copeland,        $0          $0 for the Trust and
Trustee                                 56 other investment companies in the Fund Complex

J. Christopher Donahue      $0          $0 for the Trust and
President and Trustee                   18 other investment companies in the Fund Complex

James E. Dowd, Esq.,        $0          $0 for the Trust and
Trustee                                 56 other investment companies in the Fund Complex

Lawrence D. Ellis, M.D.,    $0          $0 for the Trust and
Trustee                                 56 other investment companies in the Fund Complex

Edward L. Flaherty, Jr., Esq.,          $0$0 for the Trust and
Trustee                                 56 other investment companies in the Fund Complex

Peter E. Madden,            $0          $0 for the Trust and
Trustee                                 56 other investment companies in the Fund Complex

John E. Murray, Jr., J.D, S.J.D.,       $0$0 for the Trust and
Trustee                                 56 other investment companies in the Fund Complex

Wesley W. Posvar,           $0          $0 for the Trust and
Trustee                                 56 other investment companies in the Fund Complex

Marjorie P. Smuts,          $0          $0 for the Trust and
Trustee                                 56 other investment companies in the Fund Complex

  </TABLE>

* Information is furnished for the fiscal year ended July 31, 1998.

    

# The aggregate compensation is provided for the Trust which is comprised of
  six portfolios.

  The information is provided for the last calendar year.

Trustee Liability
The Declaration of Trust provides that the Trustees will not be liable for
errors of judgment or mistakes of fact or law. However, they are not protected
against any liability to which they would otherwise be subject by reason of
willful misfeasance, bad faith, gross negligence, or reckless disregard of the
duties involved in the conduct of their office.


                          INVESTMENT ADVISORY SERVICES

Investment Adviser

The Fund's investment adviser is Federated Management. It is a subsidiary
of Federated Investors, Inc.. All the voting securities of Federated Investors,
Inc. are owned by a trust, the trustees of which are John F. Donahue, his wife
and his son, J. Christopher Donahue.

The adviser shall not be liable to the Automated Cash Management Trust, the
Fund, or any shareholder of the Fund for any losses that may be sustained in the
purchase, holding, or sale of any security or for anything done or omitted by
it, except acts or omissions involving willful misfeasance, bad faith, gross
negligence, or reckless disregard of the duties imposed upon it by its contract
with the Automated Cash Management Trust.

Advisory Fees
   

For its advisory services, Federated Management receives an annual investment
advisory fee as described in the prospectus. For the fiscal years ended July 31,
1998, 1997, and 1996, the adviser earned $_________, $9,287,875, and $6,308,051,
respectively, of which $__________, $5,899,812, and $3,773,437, respectively,
were waived.

    


                             BROKERAGE TRANSACTIONS

   

When selecting brokers and dealers to handle the purchase and sale of portfolio
instruments, the adviser looks for prompt execution of the order at a favorable
price. In working with dealers, the adviser will generally use those who are
recognized dealers in specific portfolio instruments, except when a better price
and execution of the order can be obtained elsewhere. The adviser makes
decisions on portfolio transactions and selects brokers and dealers subject to
guidelines established by the Trustees. The adviser may select brokers and
dealers who offer brokerage and research services. These services may be
furnished directly to the Fund or to the adviser and may include: advice as to
the advisability of investing in securities; security analysis and reports;
economic studies; industry studies; receipt of quotations for portfolio
evaluations; and similar services. Research services provided by brokers and
dealers may be used by the adviser or its affiliates in advising the Fund and
other accounts. To the extent that receipt of these services may supplant
services for which the adviser or its affiliates might otherwise have paid, it
would tend to reduce their expenses. The adviser and its affiliates exercise
reasonable business judgment in selecting brokers who offer brokerage and
research services to execute securities transactions. They determine in good
faith that commissions charged by such persons are reasonable in relationship to
the value of the brokerage and research services provided. During the fiscal
years ended July 31, 1998, 1997, and 1996, the Fund paid no brokerage
commissions.

    

Although investment decisions for the Fund are made independently from those of
the other accounts managed by the adviser, investments of the type the Fund may
make may also be made by those other accounts. When the Fund and one or more
other accounts managed by the adviser are prepared to invest in, or desire to
dispose of, the same security, available investments or opportunities for sales
will be allocated in a manner believed by the adviser to be equitable to each.
In some cases, this procedure may adversely affect the price paid or received by
the Fund or the size of the position obtained or disposed of by the Fund. In
other cases, however, it is believed that coordination and the ability to
participate in volume transactions will be to the benefit of the Fund.


                                 OTHER SERVICES

Fund Administration
   

Federated Services Company, a subsidiary of Federated Investors, Inc., provides
administrative personnel and services to the Fund for a fee as described in the
prospectus. From March 1, 1994, to March 1, 1996, Federated Administrative
Services, a subsidiary of Federated Investors, Inc., served as the Fund's
Administrator. For purposes of this Statement of Additional Information,
Federated Services Company and Federated Administrative Services may hereinafter
collectively be referred to as the "Administrators." For the fiscal years ended
July 31, 1998, 1997, and 1996, the Administrators earned $________, $1,402,868
and $954,191, respectively.

    

Custodian and Portfolio Accountant
State Street Bank and Trust Company, Boston, Massachusetts, is custodian for the
securities and cash of the Fund. Federated Services Company, Pittsburgh,
Pennsylvania, provides certain accounting and recordkeeping services with
respect to the Fund's portfolio investments. The fee paid for this service is
based upon the level of the Fund's average net assets for the period plus
out-of-pocket expenses.

Transfer Agent
Federated Services Company, through its registered transfer agent, Federated
Shareholder Services Company, maintains all necessary shareholder records. For
its services, the transfer agent receives a fee based on the size, type, and
number of accounts and transactions made by shareholders.

Independent Public Accountants
The independent public accountants for the Fund are Arthur Andersen LLP,
Pittsburgh, Pennsylvania.

Distribution Plan and Shareholder Services
With respect to Cash II Shares, the Fund has adopted a Plan pursuant to Rule
12b-1 which was promulgated by the Securities and Exchange Commission pursuant
to the Investment Company Act of 1940. Both Cash II Shares and Institutional
Service Shares operate subject to shareholder servicing agreements.

These arrangements permit the payment of fees to financial institutions, the
distributor, and Federated Shareholder Services, to stimulate distribution
activities and to cause services to be provided to shareholders by a
representative who has knowledge of the shareholder's particular circumstances
and goals. These activities and services may include but are not limited to
marketing efforts; providing office space, equipment, telephone facilities, and
various clerical, supervisory, computer, and other personnel as necessary or
beneficial to establish and maintain shareholder accounts and records;
processing purchase and redemption transactions and automatic investments of
client account cash balances; answering routine client inquiries; and assisting
clients in changing dividend options, account designations, and addresses.

By adopting the Plan, the Trustees expect that the Fund will be able to achieve
a more predictable flow of cash for investment purposes and to meet redemptions.
This will facilitate more efficient portfolio management and assist the Fund in
seeking to achieve its investment objectives. By identifying potential investors
whose needs are served by the Fund's objectives, and properly servicing these
accounts, the Fund may be able to curb sharp fluctuations in rates of
redemptions and sales.

Other benefits, which may be realized under either arrangement, may include: (1)
providing personal services to shareholders; (2) investing shareholder assets
with a minimum of delay and administrative detail; (3) enhancing shareholder
recordkeeping systems; and (4) responding promptly to shareholders' requests and
inquiries concerning their accounts.

   

For the fiscal year ended July 31, 1998, payments for Cash II Shares in the
amount of $________ were made pursuant to the Plan, $_______ of which was paid
to financial institutions. In addition, for the fiscal year ended July 31, 1998,
the Fund paid shareholder service fees on behalf of Institutional Service Shares
and Cash II Shares in the amounts of $__________ and $__________, respectively,
$______ and $______ of which were waived, respectively.

    


                           DETERMINING NET ASSET VALUE

The Trustees have decided that the best method for determining the value of
portfolio instruments is amortized cost. Under this method, portfolio
instruments are valued at the acquisition cost as adjusted for amortization of
premium or accumulation of discount rather than at current market value.
Accordingly, neither the amount of daily income nor the net asset value is
affected by any unrealized appreciation or depreciation of the portfolio. In
periods of declining interest rates, the indicated daily yield on shares of the
Fund computed by dividing the annualized daily income on the Fund's portfolio by
the net asset value computed as above may tend to be higher than a similar
computation made by using a method of valuation based upon market prices and
estimates. In periods of rising interest rates, the opposite may be true.

The Fund's use of the amortized cost method of valuing portfolio instruments
depends on its compliance with certain conditions in Rule 2a-7 (the "Rule")
promulgated by the Securities and Exchange Commission under the Investment
Company Act of 1940. Under the Rule, the Trustees must establish procedures
reasonably designed to stabilize the net asset value per share, as computed for
purposes of distribution and redemption, at $1.00 per share, taking into account
current market conditions and the Fund's investment objective. The procedures
include monitoring the relationship between the amortized cost value per share
and the net asset value per share based upon available indications of market
value. The Trustees will decide what, if any, steps should be taken if there is
a difference of more than 0.5 of 1% between the two values. The Trustees will
take any steps they consider appropriate (such as redemption in kind or
shortening the average portfolio maturity) to minimize any material dilution or
other unfair results arising from differences between the two methods of
determining net asset value.


                               REDEMPTION IN KIND

The Fund is obligated to redeem shares solely in cash up to $250,000 or 1% of
the Fund's net asset value, whichever is less, for any one shareholder within a
90-day period. Any redemption beyond this amount will also be in cash unless the
Trustees determine that further payments should be in kind. In such cases, the
Fund will pay all or a portion of the remainder of the redemption in portfolio
instruments valued in the same way as the Fund determines net asset value. The
portfolio instruments will be selected in a manner that the Trustees deem fair
and equitable. Redemption in kind is not as liquid as a cash redemption. If
redemption is made in kind, shareholders who sell these securities could receive
less than the redemption value and could incur certain transaction costs.


                          MASSACHUSETTS PARTNERSHIP LAW

Under certain circumstances, shareholders may be held personally liable as
partners under Massachusetts law for obligations of the Trust. To protect its
shareholders, the Trust has filed legal documents with Massachusetts that
expressly disclaim the liability of its shareholders for acts or obligations of
the Trust. These documents require notice of this disclaimer to be given in each
agreement, obligation, or instrument the Trust or its Trustees enter into or
sign.

In the unlikely event a shareholder is held personally liable for the Trust's
obligations, the Trust is required by the Declaration of Trust to use its
property to protect or compensate the shareholder. On request, the Trust will
defend any claim made and pay any judgment against a shareholder for any act or
obligation of the Trust. Therefore, financial loss resulting from liability as a
shareholder will occur only if the Trust itself cannot meet its obligations to
indemnify shareholders and pay judgments against them.


                              THE FUND'S TAX STATUS

   

To qualify for the special tax treatment afforded to regulated investment
companies, the Fund must, among other requirements: derive at least 90% of its
gross income from dividends, interest, and gains from the sale of securities;
invest in securities within certain statutory limits; and distribute to its
shareholders at least 90% of its net income earned during the year.

    


                             PERFORMANCE INFORMATION

Performance depends upon such variables as: portfolio quality; average portfolio
maturity; type of instruments in which the portfolio is invested; changes in
interest rates; changes in expenses; and the relative amount of cash flow. To
the extent that financial institutions and broker/dealers charge fees in
connection with services provided in conjunction with an investment in shares of
the Fund, the performance will be reduced for those shareholders paying those
fees.

Yield
The yield is calculated based upon the seven days ending on the day of the
calculation, called the "base period." This yield is computed by: determining
the net change in the value of a hypothetical account with a balance of one
share at the beginning of the base period, with the net change excluding capital
changes but including the value of any additional shares purchased with
dividends earned from the original one share and all dividends declared on the
original and any purchased shares; dividing the net change in the account's
value by the value of the account at the beginning of the base period to
determine the base-period return; and multiplying the base-period return by
365/7.

   

For the seven-day period ended July 31, 1998, the yield for Cash II Shares was
____%, and the yield for Institutional Service Shares was ____%.

    

Effective Yield
The effective yield is calculated by compounding the unannualized base-period
return by: adding 1 to the base-period return; raising the sum to the 365/7th
power; and subtracting 1 from the result.

   

For the seven-day period ended July 31, 1998, the effective yield for Cash II
Shares was ____%, and the effective yield for Institutional Service Shares was
____%.

    

Total Return
Average annual total return is the average compounded rate of return for a given
period that would equate a $1,000 initial investment to the ending redeemable
value of that investment. The ending redeemable value is computed by multiplying
the number of shares owned at the end of the period by the net asset value per
share at the end of the period. The number of shares owned at the end of the
period is based on the number of shares purchased at the beginning of the period
with $1,000, adjusted over the period by any additional shares, assuming the
monthly reinvestment of all dividends and distributions.

   

The average annual total returns for the Institutional Service Shares of the
Fund for the one-, five-, and ten-year periods ended July 31, 1998, were ____%,
____%, and ____%, respectively.

The average annual total returns for the Cash II Shares of the Fund for the
one-year period ended July 31, 1998, and for the period from September 27, 1996
(date of initial public investment) through July 31, 1998, were ___% and ___%,
respectively.

    

Performance Comparisons
Investors may use financial publications and/or indices to obtain a more
complete view of the Fund's performance. When comparing performance, investors
should consider all relevant factors such as the composition of any index used,
prevailing market conditions, portfolio compositions of other funds, and methods
used to value portfolio securities and compute offering price. The financial
publications and/or indices which the Fund uses in advertising may include:

  o Lipper Analytical Services, Inc., ranks funds in various fund categories
    based on total return, which assumes the reinvestment of all income
    dividends and capital gains distributions, if any.

  o IBC/Donoghue's Money Fund Report publishes annualized yields of money market
    funds weekly. Donoghue's Money Market Insight publication reports monthly
    and 12-month-to-date investment results for the same money funds.

  o Money, a monthly magazine, regularly ranks money market funds in various
categories based on the latest available seven-day effective yield.

  o Salomon 30-Day CD Index compares rate levels of 30-day certificates of
deposit from the top ten prime representative banks.

Advertising and other promotional literature may include charts, graphs, and
other illustrations using the Fund's returns, or returns in general, that
demonstrate basic investment concepts such as tax-deferred compounding,
dollar-cost averaging, and systematic investment. In addition, the Fund can
compare its performance, or performance for the types of securities in which it
invests, to a variety of other investments, such as bank savings accounts,
certificates of deposit, and Treasury bills.

Economic and Market Information
   

Advertising and sales literature for the Fund may include discussions of
economic, financial, and political developments and their effect on the
securities market. Such discussions may take the form of commentary on these
developments by Fund portfolio managers and their views and analysis on how such
developments could affect the Funds. In addition, advertising and sales
literature may quote statistics and give general information about the mutual
fund industry, including the growth of the industry, from sources such as the
Investment Company Institute ("ICI"). For example, according to the ICI,
thiry-seven persent of American households are pursuing their financial goals
through mutual funds. These investors, as well as businesses and institutions,
have entrusted over $4.4 trillion to the more than 6,700 funds available.


                         ABOUT FEDERATED INVESTORS, INC.

Federated Investors, Inc. is dedicated to meeting investor needs which is
reflected in its investment decision making --structured, straightforward, and
consistent. This has resulted in a history of competitive performance with a
range of competitive investment products that have gained the confidence of
thousands of clients and their customers.

    

The company's disciplined security selection process is firmly rooted in sound
methodologies backed by fundamental and technical research. Investment decisions
are made and executed by teams of portfolio managers, analysts, and traders
dedicated to specific market sectors. These traders handle trillions of dollars
in annual trading volume.

   

In the money market sector, Federated Investors, Inc. gained prominence in the
mutual fund industry in 1974 with the creation of the first institutional money
market fund. Simultaneously, the company pioneered the use of the amortized cost
method of accounting for valuing shares of money market funds, a principal means
used by money managers today to value money market fund shares. Other
innovations include the first institutional tax-free money market fund. As of
December 31, 1997, Federated Investors, Inc. managed more than $63.1 billion in
assets across 51 money market funds, including 18 government, 11 prime, and 22
municipal with assets approximating $35 billion, $17.1 billion, and $10.9
billion, respectively.

The Chief Investment Officers responsible for oversight of the various
investment sectors within Federated Investors, Inc. are: equity and high yield -
J. Thomas Madden; U.S. fixed income - William D. Dawson, III; and International
- - Henry A. Frantzen. The Chief Investment Officers are Executive Vice Presidents
of the Federated advisory companies.

    

Mutual Fund Market
   

Thirty-seven percent of American households are pursuing their financial goals
through mutual funds. These investors, as well as businesses and institutions,
have entrusted over $4.4 trillion to the more than 6,700 funds available.*

Federated Investors, Inc., through its subsidiaries, distributes mutual funds
for a variety of investment applications. Specific markets include:

    

Institutional Clients
   

Federated Investors, Inc. meets the needs of approximately 900 institutional
clients nationwide by managing and servicing separate accounts and mutual funds
for a variety of applications, including defined benefit and defined
contribution programs, cash management, and asset/liability management.
Institutional clients include corporations, pension funds, tax-exempt entities,
foundations/endowments, insurance companies, and investment and financial
advisors. The marketing effort to these institutional clients is headed by John
B. Fisher, President, Institutional Sales Division.

    

Bank Marketing
Other institutional clients include close relationships with more than 1,600
banks and trust organizations. Virtually all of the trust divisions of the top
100 bank holding companies use Federated funds in their clients' portfolios. The
marketing effort to trust clients is headed by Timothy C.
Pillion, Senior Vice President, Bank Marketing & Sales.

Broker/Dealers and Bank Broker/Dealer Subsidiaries
Federated funds are available to consumers through major brokerage firms
nationwide--we have over 2,200 broker/dealer and bank broker/dealer
relationships across the country--supported by more wholesalers than any other
mutual fund distributor. Federated's service to financial professionals and
institutions has earned it high ratings in several surveys performed by DALBAR,
Inc. DALBAR is recognized as the industry benchmark for service-quality
measurement. The marketing effort to these firms is headed by James F. Getz,
President, Federated Securities Corp.

*     Source: Investment Company Institute







PART C.    OTHER INFORMATION.
Item 24.    Financial Statements and Exhibits:
            (a) Financial Statements (To be filed by amendment); (b) Exhibits:
                   (1)   Conformed copy of Declaration of Trust of the
                         Registrant dated October 3, 1988; (12) (i) Conformed
                         copy of Amendment to the Declaration of Trust dated
                         October 3, 1989; (12)
                        (ii)   Conformed copy of Amendment No. 8 to Declaration
                               of Trust dated December 28, 1994; (10)
                        (iii)  Conformed copy of Amendment No. 9 to Declaration
                               of Trust dated February 26, 1996; (15)
                        (iv) Conformed copy of Amendment No. 10 to Declaration
                   of Trust dated March 6, 1997; (16) (2) Copy of By-Laws of the
                   Registrant; (12) (3) Not applicable; (4) (i) Copy of Specimen
                   Certificate for Shares of Beneficial Interest of the
                   Registrant; (8)
                        (ii)   Copies of Specimen Certificates for Shares of
                               Beneficial Interest of Automated Cash Management
                               Trust Cash II Shares and Institutional Service
                               Shares and Treasury Obligations Fund
                               Institutional Capital Shares; (16)
                   (5)   Conformed copy of Investment Advisory Contract of the
                         Registrant; (12) (i) Conformed copy of Exhibits A
                         through G to Investment Advisory Contract; (12)
                        (ii)   Conformed copy of Investment Advisory Contract,
                               including Exhibit A, between Registrant and
                               Federated Administrative Services dated March 1,
                               1995; (11)
                   (6) Conformed copy of Distributor's Contract of the
Registrant; (7)
                        (i)    Conformed copy of Exhibit B (regarding the
                               Institutional Service Shares of Government
                               Obligations Fund, Prime Obligations Fund,
                               Tax-Free Obligations Fund and Treasury
                               Obligations Fund) to the Distributor's Contract;
                               (15)
                        (ii) Conformed copy of Exhibit D (regarding Government
                        Obligations Tax-Managed Fund, Institutional Service
                        Shares only) to Distributor's Contract; (15) (iii)
                        Conformed copy of Exhibit E to the Distributor's
                        Contract; (16) (iv) Conformed copy of Exhibit F to the
                        Distributor's Contract; (16)
- -------------------

7.   Response is incorporated by reference to Registrant's Post-Effective
     Amendment No. 7 on Form N-1A filed May 6, 1994. (File No. 33-31602)

8.   Response is incorporated by reference to Registrant's Post-Effective
     Amendment No. 8 on Form N-1A filed June 1, 1994. (File No. 33-31602)

10.  Response is incorporated by reference to Registrant's Post-Effective
     Amendment No. 12 filed February 21, 1995. (File No. 33-31602)

11.  Response is incorporated by reference to Registrant's Post-Effective
     Amendment No. 13 filed May 7, 1995. (File No. 33-31602)

12.  Response is incorporated by reference to Registrant's Post-Effective
     Amendment No. 16 filed September 29, 1995. (File No. 33-31602)

15.  Response is incorporated by reference to Registrant's Post-Effective
     Amendment No. 20 filed September 23, 1996. (File No. 33-31602)

16.  Response is incorporated by reference to Registrant's Post-Effective
     Amendment No. 22 filed September 23, 1997. (File No. 33-31602)


<PAGE>


                        (v)    The Registrant hereby incorporates the conformed
                               copy of the specimen Mutual Funds Sales and
                               Service Agreement; Mutual Funds Service
                               Agreement; and Plan Trustee/ Mutual Funds Service
                               Agreement from Item 24(b)(6) of the Cash Trust
                               Series II Registration Statement filed with the
                               Commission on July 24, 1995. (File Nos. 33-38550
                               and 811-6269);
                   (7)  Not applicable;
                   (8) Conformed copy of Custodian Agreement of the Registrant;
(8)
                   (9)  (i)    Conformed copy of the Agreement for Fund
                               Accounting Services, Administrative Services,
                               Transfer Agency Services and Custody
                               Services Procurement; (15)
                        (ii) The responses described in Item 24(b)(6) are hereby
                        incorporated by reference; (iii) Conformed copy of
                        Shareholder Services Agreement of the Registrant; (13)
                        (iv)   The Registrant hereby incorporates by reference
                               the conformed copy of the Shareholder Services
                               Sub-Contract between Fidelity and Federated
                               Shareholder Services from Item 24(b)(9)(iii) of
                               the Federated GNMA Trust Registration Statement
                               on Form N-1A, filed with the Commission on March
                               25, 1996 (File Nos. 2-75670 and 811-3375).
                  (10)  Conformed copy of Opinion and Consent of Counsel as to
                        legality of shares being registered; (12)
                  (11)  Conformed copy of Consent of Independent Public
                        Accountants; (16)
                  (12)  Not applicable;
                  (13)  Conformed copy of Initial Capital Understanding; (12)
                  (14)  Not applicable;
                  (15)  (i)   Conformed copy of Rule 12b-1 Plan dated
                              June 1, 1994; (9)
                        (ii) Conformed copy of Rule 12b-1 Agreement dated
                             June 1, 1994; (9) (iii) Conformed copy of
                             Distribution Plan and Exhibit A thereto; (16)
                  (16)  Copy of Schedule for Computation of Fund Performance
                        Data; (14)
                  (17)  Copies of Financial Data Schedules; (16)
                  (18)  The Registrant hereby incorporates the conformed copy of
                        the specimen Multiple Class Plan from Item 24(b)(18) of
                        the World Investment Series, Inc. Registration Statement
                        on Form N-1A, filed with the Commission on January 26,
                        1996. (File Nos. 33-52149 and 811-07141);
                  (19) Conformed copy of Power of Attorney (14).

8.   Response is incorporated by reference to Registrant's Post-Effective
     Amendment No. 8 on Form N-1A filed June 1, 1994. (File No. 33-31602)

9.   Response is incorporated by reference to Registrant's Post-Effective
     Amendment No. 11 on Form N-1A filed November 25, 1994. (File No. 33-31602)

12.  Response is incorporated by reference to Registrant's Post-Effective
     Amendment No. 16 filed September 29, 1995. (File No. 33-31602)

13.  Response is incorporated by reference to Form N-14 filed September 16,
     1996. (File No. 33-31602)

14.  Response is incorporated by reference to Registrant's Post-Effective
     Amendment No. 19 filed September 19, 1996. (File No. 33-31602)

15.  Response is incorporated by reference to Registrant's Post-Effective
     Amendment No. 20 filed September 23, 1996. (File No. 33-31602)

16.  Response is incorporated by reference to Registrant's Post-Effective
     Amendment No. 22 filed September 23, 1997. (File No. 33-31602)


<PAGE>


Item 25. Persons Controlled by or Under Common Control with Registrant:

         None

Item 26. Number of Holders of Securities:

                                                Number of Record Holders
         Title of Class                          as of July 21, 1998

         Shares of Beneficial Interest

         Government Obligations Fund
           Institutional Shares                           1,295
           Institutional Service Shares                   3,965
         Prime Obligations Fund
           Institutional Shares                           2,379
           Institutional Service Shares                   3,881
         Tax-Free Obligations Fund
           Institutional Shares                             522
           Institutional Service Shares                     719
         Treasury Obligations Fund
           Institutional Shares                           1,874
           Institutional Service Shares                   2,242
           Institutional Capital Shares                      55
         Automated Cash Management Trust
           Institutional Service Shares                  14,277
           Cash II Shares                                46,023
         Government Obligations Tax-Managed Fund
           Institutional Shares                              97
           Institutional Service Shares                     638

Item 27. Indemnification:  (1)

Item 28. Business and Other Connections of Investment Adviser:

(a)      For a description of the other business of Federated Management, the
         investment adviser for Automated Cash Management Trust, Government
         Obligations Fund, Prime Obligations Fund, Tax-Free Obligations Fund,
         and Treasury Obligations Fund, see the section entitled "Fund
         Information - Management of the Fund" in Part A. The affiliations with
         the Registrant of three of the Trustees and two of the Officers of
         Federated Management are included in Part B of this Registration
         Statement under "Money Market Obligations Trust Management." The
         remaining Trustee of Federated Management, his principal occupation and
         his business address is: Mark D. Olson (Partner, Wilson, Halbrook &
         Bayard), 107 W. Market Street, Georgetown, Delaware 19947.

         The remaining Officers of the investment adviser are:

         Executive Vice Presidents:          William D. Dawson, III
                                             Henry A. Frantzen
                                             J. Thomas Madden

         Senior Vice Presidents:             Joseph M. Balestrino
                                             Drew J. Collins
                                             Jonathan C. Conley
                                             Deborah A. Cunningham
                                             Mark E. Durbiano

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

1.   Response is incorporated by reference to Registrant's Initial Registration
     Statement on Form N-1A filed October 20, 1989. (File No. 33-31602)


<PAGE>


                                             Sandra L. McInerney
                                             J. Alan Minteer
                                             Susan M. Nason
                                             Mary Jo Ochson
                                             Robert J. Ostrowski
         Vice Presidents:                    Todd A. Abraham
                                             J. Scott Albrecht
                                             Randall S. Bauer
                                             David A. Briggs
                                             Micheal W. Casey
                                             Kenneth J. Cody
                                             Alexandre de Bethmann
                                             Michael P. Donnelly
                                             Linda A. Duessel
                                             Donald T. Ellenberger
                                             Kathleen M. Foody-Malus
                                             Thomas M. Franks
                                             Edward C. Gonzales
                                             James E. Grefenstette
                                             Susan R. Hill
                                             Stephen A. Keen
                                             Robert K. Kinsey
                                             Robert M. Kowit
                                             Jeff A. Kozemchak
                                             Richard J. Lazarchic
                                             Steven Lehman
                                             Marian R. Marinack
                                             Charles A. Ritter
                                             Scott B. Schermerhorn
                                             Frank Semack
                                             Aash M. Shah
                                             Christopher Smith
                                             Tracy P. Stouffer
                                             Edward J. Tiedge
                                             Paige M. Wilhelm
                                             Jolanta M. Wysocka

         Assistant Vice Presidents:          Arthur J. Barry
                                             Robert E. Cauley
                                             Lee R. Cunningham, II
                                             B. Anthony Delserone, Jr.
                                             Paul S. Drotch
                                             Salvatore A. Esposito
                                             Donna M. Fabiano
                                             John T. Gentry
                                             William R. Jamison
                                             Constantine Kartsonsas
                                             Natalie F. Metz
                                             Joseph M. Natoli
                                             Keith J. Sabol
                                             John Sheehy
                                             Michael W. Sirianni
                                             Gregg S. Tenser
                                             Leonardo A. Vila
                                             Lori A. Wolff

         Secretary:                          Stephen A. Keen

         Treasurer:                          Thomas R. Donahue

         Assistant Secretaries:              Thomas R. Donahue
                                             Richard B. Fisher
                                             Christine I. McGonigle

         Assistant Treasurer:                Richard B. Fisher


<PAGE>


         The business address of each of the Officers of the investment adviser
         is Federated Investors Tower, Pittsburgh, Pennsylvania 15222-3779.
         These individuals are also officers of a majority of the investment
         advisers to the Funds listed in Part B of this Registration Statement.

Item 29.    Principal Underwriters:

      (a)   Federated Securities Corp. the Distributor for shares of the
            Registrant, acts as principal underwriter for the following
            open-end investment companies, including the Registrant:

111 Corcoran Funds; Automated Government Money Trust; Blanchard Funds; Blanchard
Precious Metals Fund, Inc.; Cash Trust Series II; Cash Trust Series, Inc.; DG
Investor Series; Edward D. Jones & Co. Daily Passport Cash Trust; Federated
Adjustable Rate U.S. Government Fund, Inc.; Federated American Leaders Fund,
Inc.; Federated ARMs Fund; Federated Core Trust; Federated Equity Funds;
Federated Equity Income Fund, Inc.; Federated Fund for U.S. Government
Securities, Inc.; Federated GNMA Trust; Federated Government Income Securities,
Inc.; Federated Government Trust; Federated High Income Bond Fund, Inc.;
Federated High Yield Trust; Federated Income Securities Trust; Federated Income
Trust; Federated Index Trust; Federated Institutional Trust; Federated Insurance
Series; Federated Master Trust; Federated Municipal Opportunities Fund, Inc.;
Federated Municipal Securities Fund, Inc.; Federated Municipal Trust; Federated
Short-Term Municipal Trust; Federated Short-Term U.S. Government Trust;
Federated Stock and Bond Fund, Inc.; Federated Stock Trust; Federated Tax-Free
Trust; Federated Total Return Series, Inc.; Federated U.S. Government Bond Fund;
Federated U.S. Government Securities Fund: 1-3 Years; Federated U.S. Government
Securities Fund: 2-5 Years; Federated U.S. Government Securities Fund: 5-10
Years; Federated Utility Fund, Inc.; Fixed Income Securities, Inc.; High Yield
Cash Trust; Independence One Mutual Funds; Intermediate Municipal Trust;
International Series, Inc.; Investment Series Funds, Inc.; Investment Series
Trust; Liberty U.S. Government Money Market Trust; Liquid Cash Trust; Managed
Series Trust; Marshall Funds, Inc.; Money Market Management, Inc.; Money Market
Obligations Trust; Money Market Obligations Trust II; Money Market Trust;
Municipal Securities Income Trust; Newpoint Funds; Peachtree Funds; Regions
Funds; RIGGS Funds; SouthTrust Funds; Star Funds; Targeted Duration Trust;
Tax-Free Instruments Trust; The Planters Funds; The Virtus Funds; The Wachovia
Funds; The Wachovia Municipal Funds; Tower Mutual Funds; Trust for Financial
Institutions; Trust for Government Cash Reserves; Trust for Short-Term U.S.
Government Securities; Trust for U.S. Treasury Obligations; Vision Group of
Funds, Inc.; and World Investment Series, Inc.

Federated Securities Corp. also acts as principal underwriter for the following
closed-end investment company: Liberty Term Trust, Inc.- 1999.


<PAGE>


            (b)

         (1)                           (2)                        (3)
Name and Principal            Positions and Offices        Positions and Offices
 Business Address                With Distributor             With Registrant

Richard B. Fisher             Director, Chairman, Chief        Vice President
Federated Investors Tower     Executive Officer, Chief
Pittsburgh, PA 15222-3779     Operating Officer, Asst.
                              Secretary and Asst.
                              Treasurer, Federated
                              Securities Corp.

Edward C. Gonzales            Director, Executive Vice         Executive Vice
Federated Investors Tower     President, Federated,            President
Pittsburgh, PA 15222-3779     Securities Corp.

Thomas R. Donahue             Director, Assistant Secretary        --
Federated Investors Tower     and Assistant Treasurer
Pittsburgh, PA 15222-3779     Federated Securities Corp

James F. Getz                 President-Broker/Dealer,             --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

John B. Fisher                President-Institutional Sales,       --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

David M. Taylor               Executive Vice President             --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Mark W. Bloss                 Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Richard W. Boyd               Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Laura M. Deger                Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Theodore Fadool, Jr.          Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Bryant R. Fisher              Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Christopher T. Fives          Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

James S. Hamilton             Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

James M. Heaton               Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

         (1)                           (2)                        (3)
Name and Principal            Positions and Offices        Positions and Offices
 Business Address                With Distributor             With Registrant

Keith Nixon                   Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Solon A. Person, IV           Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Timothy C. Pillion            Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Thomas E. Territ              Senior Vice President,               --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Ernest G. Anderson            Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Teresa M. Antoszyk            Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

John B. Bohnet                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Byron F. Bowman               Vice President, Secretary,           --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Jane E. Broeren-Lambesis      Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

David J. Callahan             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Mary J. Combs                 Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

R. Edmond Connell, Jr.        Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

R. Leonard Corton, Jr.        Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Kevin J. Crenny               Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Daniel T. Culbertson          Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779



<PAGE>


         (1)                           (2)                        (3)
Name and Principal            Positions and Offices        Positions and Offices
 Business Address                With Distributor             With Registrant

G. Michael Cullen             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Marc C. Danile                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

William C. Doyle              Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Jill Ehrenfeld                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Mark D. Fisher                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Joseph D. Gibbons             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

John K. Goettlicher           Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Craig S. Gonzales             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Richard C. Gonzales           Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Raymond Hanley                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Bruce E. Hastings             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Beth A. Hetzel                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

James E. Hickey               Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Charlene H. Jennings          Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Brian G. Kelly                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779



<PAGE>


         (1)                           (2)                        (3)
Name and Principal            Positions and Offices        Positions and Offices
 Business Address                With Distributor             With Registrant

H. Joseph Kennedy             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Michael W. Koenig             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Michael R. Manning            Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Mark J. Miehl                 Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Richard C. Mihm               Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

J. Michael Miller             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Alec H. Neilly                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Thomas A. Peters III          Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Robert F. Phillips            Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Richard A. Recker             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Eugene B. Reed                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Paul V. Riordan               Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

John Rogers                   Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Brian S. Ronayne              Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Thomas S. Schinabeck          Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779



<PAGE>


         (1)                           (2)                        (3)
Name and Principal            Positions and Offices        Positions and Offices
 Business Address                With Distributor             With Registrant

Edward L. Smith               Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

David W. Spears               Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

John A. Staley                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Colin B. Starks               Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Jeffrey A. Stewart            Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

William C. Tustin             Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Paul A. Uhlman                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Miles J. Wallace              Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

John F. Wallin                Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Richard B. Watts              Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Edward J. Wojnarowski         Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Michael P. Wolff              Vice President,                      --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Edward R. Bozek               Assistant Vice President,            --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Terri E. Bush                 Assistant Vice President,            --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Beth C. Dell                  Assistant Vice President,            --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779



<PAGE>


         (1)                           (2)                        (3)
Name and Principal            Positions and Offices        Positions and Offices
 Business Address                With Distributor             With Registrant

David L. Immonen              Assistant Vice President,            --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Renee L. Martin               Assistant Vice President,            --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Robert M. Rossi               Assistant Vice President,            --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Denis McAuley                 Treasurer,                           --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779

Leslie K. Platt               Assistant Secretary,                 --
Federated Investors Tower     Federated Securities Corp.
Pittsburgh, PA 15222-3779


Item 30.    Location of Accounts and Records:

All accounts and records required to be maintained by Section 31(a) of the
Investment Company Act of 1940 and Rules 31a-1 through 31a-3 promulgated
thereunder are maintained at one of the following locations:

Registrant                             Federated Investors Tower
                                       Pittsburgh, PA  15222-3779

Federated Shareholder Services Company P.O. Box 8600
("Transfer Agent and Dividend          Boston, MA 02266-8600
Disbursing Agent")

Federated Services Company             Federated Investors Tower
("Administrator")                      Pittsburgh, PA  15222-3779

Federated Management                   Federated Investors Tower
Federated Administrative Services      Pittsburgh, PA  15222-3779
("Advisers")

State Street Bank and Trust Company    P.O. Box 8600
("Custodian")                          Boston, MA 02266-8600

Item 31.    Management Services:  Not applicable.

Item 32.    Undertakings:

            Registrant hereby undertakes to comply with the provisions of
            Section 16(c) of the 1940 Act with respect to the removal of
            Trustees and the calling of special shareholder meetings by
            shareholders.





<PAGE>


                                   SIGNATURES

    Pursuant to the requirements of the Securities Act of 1933 and the
Investment Company Act of 1940, the Registrant, MONEY MARKET OBLIGATIONS TRUST,
has duly caused this Amendment to its Registration Statement to be signed on its
behalf by the undersigned, thereto duly authorized, in the City of Pittsburgh
and Commonwealth of Pennsylvania, on the 30th day of July, 1998.

                         MONEY MARKET OBLIGATIONS TRUST

                  BY: /s/ Anthony R. Bosch
                  Anthony R. Bosch, Assistant Secretary
                  Attorney in Fact for John F. Donahue
                  July 30, 1998

    Pursuant to the requirements of the Securities Act of 1933, this Amendment
to its Registration Statement has been signed below by the following person in
the capacity and on the date indicated:

    NAME                            TITLE                         DATE

By: /s/ Anthony R. Bosch
    Anthony R. Bosch              Attorney In Fact          July 30, 1998
    ASSISTANT SECRETARY           For the Persons
                                  Listed Below

    NAME                            TITLE

John F. Donahue*                  Chairman and Trustee
                                  (Chief Executive Officer)

J. Christopher Donahue*           President and Trustee

John W. McGonigle*                Treasurer and Executive Vice
                                  President
                                  (Principal Financial and
                                  Accounting Officer)

Thomas G. Bigley*                 Trustee

John T. Conroy, Jr.*              Trustee

William J. Copeland*              Trustee

James E. Dowd*                    Trustee

Lawrence D. Ellis, M.D.*          Trustee

Edward L. Flaherty, Jr.*          Trustee

Peter E. Madden*                  Trustee

John E. Murray, Jr.*              Trustee

Wesley W. Posvar*                 Trustee

Marjorie P. Smuts*                Trustee

* By Power of Attorney




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