I've read a fair amount about the 2007 bubble, but i don't recall anything about this, > where government forced banks to ignore credit ratings I was under t

I've read a fair amount about the 2007 bubble, but i don't recall anything about this, > where government forced banks to ignore credit ratings I was under the impression that subprime was keenly aware of credit ratings, subprime is defined as failure to meet the Fannie May and Freddie Mac standards. The CRA excluded race and gender as loan criteria, leaving credit rating as the goto. There's lots about banks like countrywide ignoring credit rating, but i can't find anything where the government required ignoring the credit rating. Could you help me out with a link?