The Central Motor Vehicles Rules,1989
Section 97. Brakes for trailers
(1) 1[Every trailer, other than a tractor-drawn trailer, having five hundred kilograms and more of weight] shall have an efficient braking system which are capable of being applied when it is being drawn,
(i) in the case of trailer having not more than two axles, to at least all the wheels of one axle; or
(ii) in the case of a trailer having more than two axles, to at least all the wheels of two axles:
Provided that the braking system shall be so constructed that it is not rendered ineffective by the non-rotation of the engine of the drawing vehicle.
(2) The provision of sub-rule (1) shall not apply to,
(i) any land implement drawn by a motor vehicle;
(ii) any trailer designed for use and used by a local authority for street cleansing or by the fire service for fire fighting, which does not carry any load other than its necessary gear and equipment;
(iii) any disabled vehicle which is being drawn by a motor vehicle in consequence of its disablement.
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1. Substituted by G.S.R. 933(E), dated 28-10-1989 (w.e.f. 28-10-1989).