Board of Governors of the Federal Reserve System (U.S.), 1935-. "Regulation T amended to specify the characteristics of private mortgage-backed securities that may be used as collateral for margin credit at securities brokers" in Press Releases of the Board of Governors of the Federal Reserve System (December 9, 1982). https://fraser.stlouisfed.org/title/9237/item/695828, accessed on March 16, 2026.