All race personnel, race organizers, promoters, officials, riders, mechanic, anyone associated with riders and photographers must not consume or be under the influence of intoxicants or drugs that could affect their normal mental or physical ability. Besides affecting the safety of the event, any such use is inconsistent with the concept of good sportsmanship and is harmful to the sport of motorcycling.

2008 CMRC Competition Rules - Chapter 1, Section A, Item # 4.

Violation of this rule will result in disqualification, no points and no prizes.