This version of the Navigation Rules and Regulations Handbook includes the most recent updates as of January 2020 (includes LNM & NTM 7-18).
The United States has.
The Rules (commonly called 72 COLREGS) are part of the Convention, and vessels flying the flags of States ratifying the treaty are bound to the Rules.
The International Rules in this book were formalized in the Convention on the International Regulations for Preventing Collisions at Sea, 1972, and became effective on July 15, 1977.
This version of the Navigation Rules and Regulations Handbook includes the most recent updates as of January 2020 (includes LNM & NTM 7-18)