The credit risk retention regulations codified at 12 CFR part 43 (Office of the Comptroller of the Currency); 12 CFR part 244 (Federal Reserve System); 12 CFR part 373 (Federal Deposit Insurance Corporation); 17 CFR part 246 (Securities and Exchange Commission); and 12 CFR part 1234 (Federal Housing Finance Agency) include exceptions and exemptions in subpart D of each of these codified regulations for certain transactions involving programs and entities under the jurisdiction of the Department of Housing and Urban Development.