Noise limits — maintenance requirements relating to motor cycles
71.—(1) Subject to regulation 72, no person shall use or cause or permit to be used on a road a motor cycle to which regulation 69 applies if the three conditions specified below are all fulfilled.
(2) The first condition is fulfilled if the vehicle does not meet the noise limit requirements.
(3) The second condition is fulfilled if—
(a)any part of the vehicle is not in good and efficient working order, or
(b)the vehicle has been altered.
(4) The third condition is fulfilled if the noise made by the vehicle would have been materially less (so far as applicable)—
(a)were all parts of the vehicle in good and efficient working order, or
(b)had the vehicle not been altered.
(5) For the purposes of this regulation, a vehicle meets the noise limit requirements if—
(a)in the case of a vehicle first used before 1st April 1991 and not fitted with a replacement silencer, it meets the requirements of item 1 or 2 of the Table in Part I of Schedule 9;
(b)in the case of a vehicle first used before 1st April 1991 and fitted with a replacement silencer, it meets the requirements of item 1 or 3 of that Table;
(c)in the case of a vehicle first used on or after 1st April 1991 and not fitted with a replacement silencer, it meets the requirements of item 2 of that Table;
(d)in the case of a vehicle first used on or after 1st April 1991 and fitted with a replacement silencer, it meets the requirements of item 3 of that Table.
(6) In this regulation, “replacement silencer” has the same meaning as in regulation 70.