LIMITED SIGNATORY POWER


By this Limited Signatory Power the undersigned authorizes and designates each
of Polly N. Klane, Sylvia M. Mahaffey and Suzanne A. Barr, each with full power
of substitution, to execute and file on behalf of the undersigned all Forms 3, 4
and 5 (including any exhibits, attachments and amendments thereto) that the
undersigned may be required to file with the Securities and Exchange Commission
as a result of the undersigned's ownership of or transactions in securities of
Fannie Mae.  The undersigned further authorizes and designates each of Polly N.
Klane, Sylvia M. Mahaffey and Suzanne A. Barr to execute and file on behalf of
the undersigned a Form ID, and any amendments thereto, to facilitate the
foregoing.  The authority of Polly N. Klane, Sylvia M. Mahaffey and Suzanne A.
Barr under this Limited Signatory Power shall continue until the undersigned is
no longer required to file Forms 3, 4 and 5 with regard to his or her ownership
of or transactions in securities of Fannie Mae, unless earlier revoked in
writing.  The undersigned acknowledges that Polly N. Klane, Sylvia M. Mahaffey
and Suzanne A. Barr are not assuming, nor is Fannie Mae assuming, any of the
undersigned's responsibilities to file Forms 3, 4 and 5 or otherwise comply with
any related laws or regulations.

This Limited Signatory Power revokes any Signatory Power or Power of Attorney
the undersigned has previously signed with respect to Forms 3, 4 and 5, and Form
IDs, that the undersigned may be required to file with the Securities and
Exchange Commission as a result of the undersigned's ownership of or
transactions in securities of Fannie Mae.



Date: April 8, 2008	Signed: /s/ Enrico Dallavecchia