Poster - Enclosed Space Entry Q1 - British Colombia & Washington British Admiralty Nautical Chart 372:

British Admiralty Nautical Chart 372: Mexico - East Coast

British Admiralty Nautical Chart 2967: Russia – Arctic Ocean

NOAA Nautical Chart 14975: Duluth-Superior Harbor

South Limit 55� 38'

Poster - Enclosed Space Entry Q1 - British Colombia & Washington British Admiralty Nautical Chart 372:This maritime sign is used by mariners to provide adequate signage on board vessels. Furthermore, some flag states and regulatory organizations require maritime signs on board to be in compliance with the maritime governing regulations. Maritime signs are critical in keeping a vessel's crew safe of any possible hazards, all safety equipment easy to mark, and provide directions on board a vessel.