Correction: Fitch Rates Banc of America Mtge Securities $390.3MM Series 2004-10.

NEW YORK -- (This is an amended version of a press release issued earlier today, containing revised rating information on the class 15-B-4 and class 15-B-5.)

Banc of America Mortgage Securities, Inc., (BOAMSI) series 2004-10 mortgage pass-through certificates, is rated by Fitch as follows:

Group 1 certificates:

-- $314,276,100 classes 1-A-1 through 1-A-9, 1-A-R, 1-A-LR and 30-IO, ('group 1 senior certificates') 'AAA';

-- $5,845,000 class 30-B-1, 'AA';

-- $1,623,000 class 30-B-2, 'A';

-- $975,000 class 30-B-3, 'BBB';

-- $649,000 class 30-B-4, 'BB';

-- $487,000 class 30-B-5, 'B'.

Group 2 certificates:

-- $64,208,000 classes 2-A-1 and 15-IO, ('group 2 senior certificates') 'AAA';

-- $754,000 class 15-B-1, 'AA';

-- $197,000 class 15-B-2, 'A';

-- $131,000 class 15-B-3, 'BBB';

-- $66,000 class 15-B-4, 'BB';

-- $98,000 class 15-B-5, 'B';

and certificates of all groups:

-- $412,864 class X-PO (consisting of two components: classes 1-X-PO and 2-X-PO), 'AAA'.

The 'AAA' ratings on the group 1 senior certificates reflects the 3.10% subordination provided by the 1.80% class 30-B-1, the 0.50% class 30-B-2, the 0.30% class 30-B-3, the 0.20% privately offered class 30-B-4, the 0.15% privately offered class 30-B-5, and the 0.15% privately offered class 30-B-6. Classes 30-B-1, 30-B-2, 30-B-3, 30-B-4, and 30-B-5 are rated 'AA,' 'A,' 'BBB,' 'BB,' and 'B,' respectively, based on their respective subordination. Class 30-B-6 is not rated by Fitch.

The 'AAA' ratings on the group 2 senior certificates reflects the 2.05% subordination provided by the 1.15% class 15-B-1, the 0.30% class 15-B-2, the 0.20% class 15-B-3 certificates, the privately offered 0.10% class 15-B-4, the privately offered 0.15% class 15-B-5, and the privately offered 0.15% class 15-B-6. Classes 15-B-1, 15-B-2, 15-B-3, 15-B-4, and 15-B-5 are rated 'AA,' 'A,' 'BBB,' 'BB,' and 'B,' respectively, based on their respective subordination. Class 15-B-6 is not rated by Fitch.

The ratings also reflect the quality of the underlying collateral, the primary servicing capabilities of Bank of America Mortgage, Inc. (rated 'RPS1' by Fitch), and Fitch's confidence in the integrity of the legal and financial structure of the transaction.

The transaction is secured by two pools of mortgage loans, which respectively collateralize the groups 1 and 2 certificates. Except for the class X-PO certificates, the two loan groups are not cross-collateralized.

The group 1 collateral consists of 620 recently originated, conventional, fixed-rate, fully amortizing, first lien, one- to four-family residential mortgage loans with original terms to stated maturity ranging from 300 to 360 months. The weighted average original loan-to-value ratio (OLTV) for the mortgage loans in the pool is approximately 69.12%. The average balance of the mortgage loans is $523,721 and the weighted average coupon (WAC) of the loans is 5.968%. The weighted average FICO credit score for the group is 745. Second homes comprise 9.38% and there are no investor-occupied properties. Rate/Term and cashout refinances represent 31.46% and 20.55%, respectively. The states that represent the largest geographic concentration of mortgaged properties are California (49.66%) and Virginia (5.73%). All other states comprise fewer than 5% of properties in the group.

The group 2 collateral consists of 119 recently originated, conventional, fixed-rate, fully amortizing, first lien, one- to two-family residential mortgage loans with original terms to stated maturity ranging from 120 to 180 months. The weighted average OLTV for the mortgage loans in the pool is approximately 63.83%. The average balance of the mortgage loans is $551,277 and the WAC of the loans is 5.489%. The weighted average FICO credit score for the group is 744. Second homes comprise 11.21% and there are no investor-occupied properties. Rate/Term and cashout refinances represent 36.92% and 24.98%, respectively, of the group 2 mortgage loans. The states that represent the largest geographic concentration of mortgaged properties are California (41.53%), Florida (6.40%), Virginia (5.14%), and Texas (5.13%). All other states comprise fewer than 5% of properties in the group.

None of the mortgage loans are 'high cost' loans as defined under any local, state or federal laws. For additional information on Fitch's rating criteria regarding predatory lending legislation, please see the press release issued May 1, 2003 entitled 'Fitch Revises Rating Criteria in Wake of Predatory Lending Legislation,' available on the Fitch Ratings web site at 'www.fitchratings.com.'

Banc of America Mortgage Securities, Inc. deposited the loans in the trust, which issued the certificates, representing undivided beneficial ownership in the trust. For federal income tax purposes, elections will be made to treat the trust as two separate real estate mortgage investment conduits (REMICs). Wells Fargo Bank, National Association will act as trustee.