Rules of the Road (COLREGS)
As commercial shipping expanded after the Second World War and shipping lanes grew more crowded, there was a desperate need for the introduction traffic separation schemes. The Collision Regulations of 1960 were the first major international rules.
Since then the International Regulations for Preventing Collisions at Sea, better known as Colregs, were published by the IMO in 1972 and have since been adopted by 155 states representing nearly 99% of the tonnage of the world's merchant fleets.
The rules are presented in our APP with bite-sized summaries as well as the full text of the rules. Images and audio are added to aid your recall.