COLREG (Convention on the International Regulations for Preventing Collisions at Sea, 1972) lays down the basic “rules of the road”, such as rights of way and actions to avoid collisions.

LOADLINE (International Convention on Loadlines, 1966) sets the minimum permissible free board, according to the season of the year and the ship’s trading pattern.

ISPS (The International Ship and Port Facility Security Code, 2002) includes mandatory requirements to ensure ships and port facilities are secure at all stages during a voyage.