Board of Governors of the Federal Reserve System (U.S.), 1935-. "Regulation T amended to require brokers and dealers to obtain good faith margin from customers who write uncovered options on government securities" in Press Releases of the Board of Governors of the Federal Reserve System
(October 5, 1981).
https://fraser.stlouisfed.org/title/9237/item/695480, accessed on September 5, 2026.