Orienteering USA Rules of Competition.
Competition Rules (For Printing) January 2025
Sanctioning Supplement (Google Doc)
Here’s a quick guide to the standard course/class structure for national ranking events. You are always allowed to compete in a longer/harder championship class (younger class for those 35 and above, older class for those 20 or younger). You may also compete in a shorter/easier course in an open category (e.g., F-Brown or M-Green), which is ranked but ineligible for championship medals.
International Rules
Orienteering
SkiO
MTBO
TrailO
Rogaining
For general comments and questions about the Rules, contact the Rules Committee chair.