Motorcycle Noise Act 1987.

Environmental and Propulsion Unit Performance Requirements for Agricultural and Forestry Vehicles.

Approval/Surveillance of Two- or Three-wheel Vehicles and Quadricycles.

Noise Emissions by Equipment Used Outdoors.

Draft Goods Vehicles (Testing, Drivers' Hours and Tachographs etc.) (Amendment) Regulations 2026.

Sound Levels of Motor Vehicles.

Motorcycle (Sound Level Measurement Certificates) Regulations 1995 - Reference EC Directive No. 78/1015/EEC.

Road Vehicles (Construction and Use) Regulations 1986.

Motorcycles Silencer and Exhaust System Regulations 1995 - Reference EC Directive No. 78/1015/EEC.