—Regulators told bankers exotic mortgages were often inappropriate for buyers with bad credit.
—Banks would have been required to increase efforts to verify that buyers actually had jobs and could afford houses.
—Regulators proposed a cap on risky mortgages so a string of defaults wouldn't be crippling.
—Banks that bundled and sold mortgages were told to be sure investors knew exactly what they were buying.
—Regulators urged banks to help buyers make responsible decisions and clearly advise them that interest rates might skyrocket and huge payments might be due sooner than expected.
Those proposals all were stripped from the final rules. None required congressional approval or the president's signature.
"In hindsight, it was spot on," said Jeffrey Brown, a former top official at the Office of Comptroller of the Currency, one of the first agencies to raise concerns about risky lending.
Federal regulators were especially concerned about mortgages known as "option ARMs," which allow borrowers to make payments so low that mortgage debt actually increases every month. But banking executives accused the government of overreacting.
Bankers said such loans might be risky when approved with no money down or without ensuring buyers have jobs but such risk could be managed without government intervention.
"An open market will mean that different institutions will develop different methodologies for achieving this goal," Joseph Polizzotto, counsel to now-bankrupt Lehman Brothers, told U.S. regulators in a March 2006.
Countrywide Financial Corp., at the time the nation's largest mortgage lender, agreed. The proposal "appears excessive and will inhibit future innovation in the marketplace," said Mary Jane Seebach, managing director of public affairs.
One of the most contested rules said that before banks purchase mortgages from brokers, they should verify the process to ensure buyers could afford their homes. Some bankers now blame much of the housing crisis on brokers who wrote fraudulent, predatory loans. But in 2006, banks said they shouldn't have to double-check the brokers.