Motorcycle Noise Act 1987.

Road Vehicles (Construction and Use) Regulations 1986.

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

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

Noise Levels.

Road Traffic Code.

Noise Control (Motor Vehicles).

Construction and Maintenance of Vehicles Regulations.

Regulation on Vehicle Design and Equipment.

Interior Noise.