Report of Ernst & Young LLP, Independent Auditors

To the Board of Directors of
Money Market Obligation Trust

In planning and performing our audit of the consolidated financial
statements of Money Market Obligation Trust (consisting of Automated
Government Cash Reserves Fund, Automated Treasury Cash Reserve Fund, and
US Treasury Cash Reserves) (the "Trust") for the year ended April 30,
2001, we considered its internal control, including control activities
for safeguarding securities, to determine our auditing procedures for
the purpose of expressing our opinion on the financial statements and to
comply with the requirements of Form N-SAR, and not to provide assurance
on internal control.

The management of the Trust is responsible for establishing and
maintaining internal control.  In fulfilling this responsibility,
estimates and judgments by management are required to assess the
expected benefits and related costs of internal control. Generally,
internal controls that are relevant to an audit pertain to the Trust's
objective of preparing financial statements for external purposes that
are fairly presented in conformity with generally accepted accounting
principles.  Those internal controls include the safeguarding of assets
against unauthorized acquisition, use, or disposition.

Because of inherent limitations in internal control, misstatements due
to errors or fraud may occur and not be detected.  Also, projections of
any evaluation of internal control to future periods is subject to the
risk that internal control may become inadequate because of changes in
conditions, or that the degree of compliance with the policies or
procedures may deteriorate.

Our consideration of internal control would not necessarily disclose all
matters in internal control that might be material weaknesses under
standards established by the American Institute of Certified Public
Accountants. A material weakness is a condition in which the design or
operation of one or more of the specific internal control components
does not reduce to a relatively low level the risk that errors or fraud
in amounts that would be material in relation to the financial
statements being audited may occur and not be detected within a timely
period by employees in the normal course of performing their assigned
functions.  However, we noted no matters involving internal control,
including control activities for safeguarding securities, and its
operation that we consider to be material weaknesses as defined above as
of April 30, 2001.

This report is intended solely for the information and use of the Board
of Directors and management of Money Market Obligation Trust and the
Securities and Exchange Commission and is not intended to be and should
not be used by anyone other than these specified parties.



ERNST & YOUNG LLP


Boston, Massachusetts
June 19, 2001