(1)  If a light motor vehicle has air brakes, the braking system of the vehicle must include at least one air storage tank.

(2)  If a light motor vehicle has vacuum brakes, the braking system of the vehicle must include at least one vacuum storage tank.

(3)  An air storage tank or vacuum storage tank must be built so that the service brake can be applied to meet the performance standards of regulation 110 at least twice if the engine of the light vehicle stops or the source of air or vacuum fails.

(4)  An air storage system or vacuum storage system must –

(a) be built to give a visible or audible warning to the driver, while in a normal driving position, of a lack of air or vacuum that would prevent the service brake from being applied to meet the performance standards of regulation 110 at least twice; and

(b) be safeguarded by a check valve or other device against loss of air or vacuum if the supply fails or leaks.

(5)  Subregulation (4)(a) does not apply to a light vehicle that is fitted with an air- or vacuum-assisted braking system.

(6)  If air brakes or vacuum brakes are fitted to a light motor vehicle equipped to tow a trailer, the brakes of the vehicle must be able to stop the vehicle, at the performance standards for emergency brakes under regulation 110 , if the trailer breaks away.