C-72.1, r. 4 - Rules respecting Standardbred horse races held at a professional race track

Full text
262. During the 90 minutes preceding the first race of a race program and until the end of the last race of that program, as well as during any race, a trainer or driver who rides in a sulky to train or drive a horse at a race shall fulfil the following obligations:
(1)  he shall keep his feet in the stirrups;
(2)  he shall wear a safety helmet complying with the standard (2000 Standard for Protective Headgear) of the Snell Memorial Foundation on protective headgear for harness racing and other equestrian sports, and shall fasten the chin strap.
Decision 90-09-19, s. 262.