Offshore Special Regulations
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 edition for 2024-2025 became effective on 1 January 2024 and the 2026-2027 edition will become effective on 1 January 2026. It is available to download either in full or by category. The extracts of the 2026-2027 edition will be published shortly.