USMS Code of Regulations and Rules of Competition

This is an online version of the official Rule Book. If there are any discrepancies between this online version and the printed publication, the online version will take precedence. You can download a PDF version of the Full Rule Book and/or the "Mini" Rule Book.

These are the individual sections of the official Rule Book:

* Section updated since original printed publication
Printed versions of the official publication can be purchased from the National Office for $10 per copy for shipping and handling ($6 per copy for a mini Rule Book). USMS will strive to process and fulfill orders as soon as possible during this period of uncertainty due to the COVID-19 pandemic. Contact the National Office via email to order.

Rule Book Amendments

USMS considers changes to the USMS Code of Regulations and Rules of Competition on an annual basis in accordance with article 601.2. For more details, review the process overview of submitting proposed amendments.

Competition Polices and Official Rule Interpretations

Competition polices, rules committee blog, important updates and official rule interpretations

Official Rule Interpretations and Important Updates

Official Interpretations

Important Updates

USMS Rules Committee Blog
Questions about rules? Visit the USMS Rules Committee Blog, which may answer your question and feel free to post questions via the comments tool in each post. Or direct any questions to the Rules Committee Chair.

FINA Masters Rules

FINA Masters rules are available on FINA's website.