Federal Reserve Bank of Dallas. "Amendment to Regulation P, Circular No. 81-72," District Notices (Federal Reserve Bank of Dallas) (April 9, 1981). https://fraser.stlouisfed.org/scribd/?item_id=541254&filepath=/files/docs/historical/frbdal/circulars/frbdallas_circ_19810409_no81-072.pdf&start_page=1, accessed on October 22, 2017.
Regulation P Minimum Security Devices and Procedures on Federal Reserve Banks and State Member Banks. Amendment Effective 3-10-81. State Member Banks Required to Have Written Security Program; Form P-1 Eliminated.