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

SCHEDULE 9 Motor cycle noise and motor cycle silencers

Part III

3.  A reference in this Part of this Schedule to a British Standard Specification is a reference to British Standard BS AU 193: 1983 or British Standard BS/AU 193a: 1990; and “either of the British Standard Specifications” shall be construed accordingly.