IMO COLREG Collision Regulations 2003 Edition IB904E
The Convention on the International Regulations for Preventing Collisions at Sea, 1972 (COLREG 1972) has been accepted by many States since it was adopted in 1972 and entered into force in July 1977. It was amended in 1981, 1987, 1989, 1993 and 2001.
This publication contains the fully consolidated text of the 1972 Convention on the International Regulations for the Preventing Collisions at Sea. This supersedes the 2002 Consolidated edition.