MTSA/MARSEC Signs ISPS Security Signs TWIC Security Signs International Maritime Organization (IMO) International Ship and Port Facility Security Code (ISPS) These security signs conveniently alert personnel to changes in the IMO's ISPS Security Level and meet the requirements set forth in the ISPS Code: • ISPS Part B 9.20 • ISPS Part B 16.23 ISPS Security Complete Set ISPS Security Security Levels Restricted Area 3" x 8" Vinyl Sticker Restricted Area Aluminum Signs ISPS Part B 9.20 ISPS Part B 16.23 ISPS Part B 9.20 ISPS Part B 16.23

Resource center for security signs, stickers, and placards to comply with maritime, port, and facility security regulations.