Check noise emissions

This section must be read in conjunction with Appendix B6 - Sound level meters.

  • Any noise reducing or absorbing equipment is missing.

  • Changes to the original design of the engine, fuel system, air inlet system, or exhaust system all have the potential to affect compliance of the vehicle with noise standards. Where any such modifications have been carried out a noise test may be necessary to ensure that the vehicle complies with the exhaust noise limits. Such modifications could also affect compliance with exhaust emission requirements.