Governor Arnold Shwarzenegger just signed into law a bill that requires motorcycles registered in California and built on or after January 1 2013 to have a label on the exhaust identifying that it has met sound limits. This state law is on top of the 1972 federal Noise Control Act, which required the EPA to set sound standards.
The federal law requires motorcycles to be limited to 80 decibels, which motorcycle manufacturers have been in compliant with for years now and are measured with a ride-by test. The question now is how are they going to enforce this labeling system? How will officers verify that labeling is on the exhausts? Seems a bit of a hassle and hard to enforce. Fortunately the law is a secondary offense so they can’t stop motorcyclists on the sound law itself, however, if a rider is stopped and fails the label law, he can see a fine of up to $100 for the first offense and up to $250 for additional stops.
Want to find out more about the law? Check out California’s Bill on Sound Limits for Motorcycles.