Office of the Comptroller of the Currency Revised Flood Hazard Form. The agency has informed chief executives and compliance officers of national banks of the revised standard flood-hazard determination form issued by the Federal Emergency Management Agency. Although FEMA Form 81-93, Dec. 05 was designed to replace FEMA Form 81-93, Oct. 02, both forms may be used before July 1, 2006, when use of the revised form becomes mandatory.