C-24.2, r. 32 - Regulation respecting safety standards for road vehicles

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174. The following are major defects:
(1)  no braking on a wheel because of the poor working order of a component of the mechanical or hydraulic brake system;
(2)  a crack that extends to the outer edge of the friction surface or on another part of the drum or disc;
(3)  when the brakes are applied, a support or rivet of the brake lining that touches the friction surface of the drum or disc;
(4)  a flexible hose that bulges when under pressure;
(5)  a fluid level in the master cylinder lower than one quarter of the normal level;
(6)  a brake fluid leak along the system, other than oozing, where the brake is applied;
(7)  a hydraulic brake control that has to be depressed several times in order to pressurize the circuit;
(8)  a hydraulic brake control that reaches the end of its travel within 10 seconds where a moderate pressure is applied;
(9)  the travel of the brake control exceeds 80% of the total possible travel; and
(10)  a component of the system that is poorly mounted, missing, crimped, damaged, deteriorated or worn out in a way that hampers the good operation of the brakes.
O.C. 1483-98, s. 174.