Motor Vehicles (Construction and Use) Regulations (Northern Ireland) 1999

4.  In this Schedule—

(a) “British Standard BS AU 193: 1983” means the British Standard Specification for replacement motor cycle and moped exhaust systems published by the British Standards Institution under reference number BS AU 193:1983;

(b) “British Standard BS AU 193a: 1990” means the British Standard Specification for replacement motor cycle and moped exhaust systems published by the British Standards Institution under reference number BS AU 193a: 1990.