The Racing Rules of Sailing are published by US Sailing, and renewed every 4 years.
The current version of the racing rules is available at https://d7qh6ksdplczd.cloudfront.net/sailing/wp-content/uploads/2024/12/23114336/2025-2028-RRS-with-Changes-and-Corrections.pdf
A study version is also available at https://d7qh6ksdplczd.cloudfront.net/sailing/wp-content/uploads/2024/07/19112733/2-Study-Version-of-the-Racing-Rules-of-Sailing-for-2025-2028.pdf