264. During the 90 minutes before the first pari-mutuel betting race of a race program and during the entire race program, a driver or trainer shall wear distinctive colours for the warm-up of his horse on the racing strip before a race, during the parade and the race.
Where a trainer or driver wears a rain suit, it must be in his distinctive colours or made of a transparent material through which the colors may be clearly distinguished.
Decision 90-09-19, s. 264.