Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999 No. 454

SCHEDULE 9 Motor cycle noise and motor cycle silencers

Part II

3.  The requirements of this paragraph are that the silencer is—

(a) so constructed that—

(i) it meets the requirements of paragraphs 3 and 4 of British Standard BS AU 193a: 1990;

(ii) were it to be fitted to an unused vehicle of the same model as the vehicle in question, the unused vehicle would meet the requirements of paragraph 5.3 of that Standard; and

(b) it is clearly and indelibly marked “BS AU 193a: 1990/T3”.