Sound and Noise Are Our Biggest Issues for OHVs
This page talks about how to address the issues
Motorcycle Industry Council Sound Test Manual

The Motorcycle Industry Council provides this manual for those interested in the effective and economical enforcement and evaluation of off-highway motorcycles and ATVs in the field.
Sound test training
NOHVCC has teamed up with Sound expert Chris Real. Chris will provide sound test training and information to fill your needs from the land manager's educational use, to clubs and associations ensuring their members and participants meet the requirments, to certifying Peace Officers.
Sound Advice
Sound Advice is the product of a two-year effort by the Motorcycle Sound Working Group put together by the AMA. The document provides information about sound and the AMA's position on sound while taking part in motorcycle activities.
Sound Testing Equipment
To perform sound testing in the field you will need the right equipment. NOHVCC gives you information about where we purchase our equipment.