What COLREGs 1972 - International Regulations for Preventing Collisions at Sea requires
The Convention on the International Regulations for Preventing Collisions at Sea 1972 (COLREGs), adopted by IMO and in force since 15 July 1977, establishes the universal right-of-way rules, navigation light requirements, sound and light signal protocols, and lookout standards for all vessels navigating on international waters. The 38 Rules (in 5 Parts: A General, B Steering and Sailing, C Lights and Shapes, D Sound and Light Signals, E Exemptions) apply to every vessel, seaplane, and watercraft on the high seas and waters connected therewith navigable by seagoing vessels. COLREGs are foundational for autonomous maritime vessel (MASS) compliance - IMO's MASS Code draft maps COLREG Rule 5 (lookout), Rule 8 (collision avoidance), and Rule 9 (narrow channel) to autonomous sensor and decision-system requirements. The 1981, 1987, 1989, 1993, 2001, 2007, 2009, and 2023 amendments progressively updated light/shape specifications and introduced provisions for Wing-in-Ground (WIG) craft. Violations of COLREGs are the leading cause of ship collision liability and criminal prosecution under flag State maritime law.
Pillar: Maritime & Shipping · Authority: International Maritime Organization (IMO) - adopted by the Conference of Governments on COLREGs · Version: 1.0.1 · Last updated:
Primary source: https://www.imo.org/en/About/Conventions/Pages/COLREG.aspx
SHA-256 integrity: 64f319fbd391dc640da204e1ca8a05201432262e4b84957ab67ae1a44d7233f7
Primary Citations — 7 traced to source
- https://www.imo.org/en/About/Conventions/Pages/COLREG.aspx
- https://www.imo.org/en/MediaCentre/MeetingSummaries/Pages/MSC-102nd-session.aspx
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