Unit 1 Dover Straight Sailing Directions Unit 2 Guide to Bahrain Port Entry Unit 3 Nautical Publications Unit 4 Charts and Notices to Mariners Unit 5 Radar ARPA and Compass Unit 6 ECDIS AIS&VDR Etc Unit 7 GNSS GPS SSAS&LRIT Unit 8 Ship Maneuvering Unit 9 COLREGs Unit 10 Firefighting at Sea Unit 11 Life saving&Survival at Sea Unit 12 Weather Reports Unit 13 Deck Logbook Unit 14Omcial Logbook and Its Records