As a USA Triathlon Official, I am often asked about the requirements for race sanctioning and the benefits of having an Official at the race. For specific details click here. To summarize, a race that is sanctioned has provided documents that support a safe race including medical, volunteers, and course details. After receiving a sanction, the race is insured and can utilize officials.
The best way to enforce the competitive rules is to request USAT Certified Officials although they are not required. If Officials are not present at a race, rule enforcement becomes the Race Director's responsibility.
For information about becoming a USAT Certified Official, click here.