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