The World Sailing Offshore Special Regulations (OSR) govern offshore racing for monohulls and multihulls, structural features, yacht equipment, personal equipment and training.

The OSR is republished every two years and the latest edition is for 2018-2019 with updates January 2019. You can dowload it either in full or by category and view the interpretations of the World Sailing Special Regulations Sub-Committee below.

For information about archive editions of the OSR please contact the World Sailing Executive Office.