EX-31.1

         Servicer's Sarbanes-Oxley Certification (2001 Transactions)

                  BANK OF AMERICA MORTGAGE SECURITIES, INC.,
                       MORTGAGE PASS-THROUGH CERTIFICATES,
                      SERIES SET FORTH ON EXHIBIT I HERETO

      I, Gary K. Bettin,  a Senior Vice  President  of Bank of America,  N.A.,
certify that:

1.    I have  reviewed the annual  reports on Form 10-K for the calendar  year
      2003 and all monthly current reports on Form 8-K containing a copy of the
      monthly statement to certificateholders (the "Distribution Date
      Statements") delivered pursuant to Section 5.04(a) of the Pooling and
      Servicing Agreements listed on Exhibit I hereto (each, an "Agreement")
      filed in respect of periods included in the year covered by such annual
      reports of the trusts (each, a "Trust") formed pursuant to such
      Agreements;

2.    Based on my knowledge, with respect to each Trust, the information in
      these reports, taken as a whole, does not contain any untrue statement of
      a material fact or omit to state a material fact necessary to make the
      statements made, in light of the circumstances under which such statements
      were made, not misleading as of the last day of the period covered by such
      annual report;

3.    Based on my knowledge, the distribution or servicing information required
      to be provided to the trustee by the servicer under each Agreement for
      inclusion in the related Trust's Distribution Date Statements is included
      in these reports;

4.    I am responsible for reviewing the activities performed by the servicer
      under each Agreement and based upon my knowledge and the annual compliance
      review required under each Agreement, and except as disclosed in the
      reports, the servicer has fulfilled its obligations under each Agreement;

5.    The reports disclose all significant deficiencies relating to the
      servicer's compliance with the minimum servicing standards, based upon the
      report provided by an independent public accountant after conducting a
      review in compliance with the Uniform Single Attestation Program for
      Mortgage Bankers or similar procedure as set forth in the Agreement that
      is included in these reports; and

6.    In giving the certifications above, I have reasonably relied on
      information provided to me by the following unaffiliated parties: The Bank
      of New York and Wells Fargo Bank Minnesota, National Association.

                                       By:/s/ Gary K. Bettin
                                          --------------------------------------
                                                           Name:  Gary K. Bettin
                                                 Title:    Senior Vice President

<PAGE>

                                                                       EXHIBIT I

                PARTIES                  DATE OF POOLING           SERIES
                                                                       AGREEMENT

===============================================================================

Bank of America Mortgage Securities,    January 25, 2001           2001-1
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    February 22, 2001          2001-2
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    March 27, 2001             2001-3
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    March 29, 2001             2001-4
Inc., Bank of America, N.A. and Wells
Fargo Bank Minnesota, N.A.

Bank of America Mortgage Securities,    April 24, 2001             2001-A
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    April 24, 2001             2001-5
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    May 24, 2001               2001-6
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    May 29, 2001               2001-B
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    June 26, 2001              2001-7
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    June 27, 2001              2001-C
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    July 24, 2001              2001-8
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    July 26, 2001              2001-D
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    August 23, 2001            2001-9
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    August 28, 2001            2001-E
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    September 25, 2001         2001-10
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    October 23, 2001           2001-F
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    November 27, 2001          2001-G
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    November 27, 2001          2001-11
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    December 20, 2001          2001-H
Inc., Bank of America, N.A. and The
Bank of New York

Bank of America Mortgage Securities,    December 20, 2001          2001-12
Inc., Bank of America, N.A. and The
Bank of New York