Fannie Mae (FNM), in a frequently-asked-questions document on its Web site, said adopting the code would "help enhance the integrity of the home appraisal process," but industry sources are raising an outcry against it several months after the effective date. The contention even resulted in an online petition for the reconsideration of the HVCC, launched June 1 and bearing 35,000 signatures and testimonies as of June 22, according to a statement by Think Big Work Small, the real estate industry group that aims to deliver 100,000 signatures to rescind the code. Other groups this week began adding to the outcry. The National Association of Home Builders (NAHB) spoke out against the use of distressed sales as a comparison in valuating single-family homes, which it says is needlessly keeping prices low. "Any home buyer can recognize the difference between a well-kept home and a distressed property that is damaged or not properly maintained," said NAHB chairman Joe Robson.