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

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46. Subject to section 47, a trainer shall be responsible for the physical condition of the horse that he trains and for the eligibility of that horse when it is declared in a race.
He shall also ensure that any horse that he trains and that is to start in a race is subject to strict supervision to prevent any person from administering a drug to it.
He may not declare a horse in a race or have the horse start in a race if he believes that the horse is not in condition to run in a race.
Decision 90-09-19, s. 46.