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ISAF Offshore Special Regulations

NED7025 Holmatro in challenging conditions in the 2008 Rolex Commodores' Cup. Photo: Rolex/Kurt ArrigoThe purpose of the ISAF Offshore Special Regulations (referred to as OSR below) is to establish uniform minimum equipment, accommodation and training standards for monohull and multihull yachts racing offshore.

The RORC categorises its races depending on the duration, exposure of the race course, distance to the shoreline and the degree of self-sufficency required. The RORC also includes prescriptions to the OSR.

A RORC Offshore Weekend Race is usually OSR Category 3, plus Liferafts as set out in Category 2 plus RORC Prescriptions.
Inshore Events such as the RORC Easter Challenge or IRC National Championship are usually OSR Category 4 plus RORC Prescriptions.
The Rolex Fastnet, Round Ireland and Rolex Middle Sea Races are OSR Category plus RORC Prescriptions.
The Sevenstar Round Britain and Ireland and RORC Transatlantic Races are Category 1 plus RORC Prescriptions.

Please check the RORC's Notice of Race for the OSR Category required for the race you enter.

Below are links to the ISAF etxracts for each Category and the RORC Prescriptions:

Monohull

 

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