U.S. Customs AIS Security Policy Manual CIS HB 1400-05 (WordPerfect 6.1), June 1996
You can download it from the following link: https://packetstormsecurity.com/files/download/13944/ais_plcy.wp6
Source: https://packetstormsecurity.com/files/13944/ais_plcy.wp6.html