🏛️ Institution of knowledge

International Regulations for Preventing Collisions at Sea (COLREG)

Reglamento internacional para prevenir abordajes (COLREG)

Date
1972 (en vigor desde 1977) · confidence high
Place
London, England, United Kingdom
Credited to
International Maritime Organization (IMO)
Field
Movement

What it is

An IMO convention unifying the rules of steering and sailing, lights, shapes and sound signals of all ships, and traffic separation schemes. It is the 'rule of the road' at sea.

What it led to

  • common give-way and stand-on rules between ships
  • traffic separation schemes
  • mandatory bridge-officer training
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Sources✓ verified 2026-11-06