International Regulations For the Prevention Of Collisions at Sea - http://www.sailtrain.co.uk/Irpcs/ Provides free assistance in learning the International Regulations for the Prevention of Collisions at Sea (Col Regs/IRPCS) and includes links to relevant sites.
NavRules - http://www.navrules.com Free formal training program to learn the "rules of the road", required of all boat operators. Internationally recognized Collision Regulations and US Inland Rules.
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