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SCHEDULE 2APPROVAL REQUIREMENTS FOR RELEVANT VEHICLES

3.  When –

(a)the vehicle is held stationary on an open level surface such that there is an unobstructed area not less than 3 metres wide all around the vehicle; and

(b)the engine by which the vehicle is propelled is run at a constant rotational speed of

  • S/2 if S is more than 5000 rpm,

  • 3S/4 if S is not more than 5000 rpm,

the noise measured at 0.5 metres from the exhaust outlet at 45 degrees to the axis of the outlet pipe in a horizontal plane shall not exceed the relevant level.