Chupaca
New member
The blog for my trade association, Automotive Service Councils of California has a thread going about loud vehicles. Somebody found the following on the AAA webpage and posted it:
California Vehicle Code sections 27201 and 27202 established the following:
A noise limit of 92 decibels applies to any motorcycle manufactured before 1970. A noise limit of 88 decibels applies to motorcycles manufactured after 1969 and before 1973; 86 decibels applies to motorcycles manufactured after 1972 and before 1975; 83 decibels applies to motorcycles manufactured after 1974 and before 1986; 80 decibels applies to motorcycles manufactured after 1985.
Motorcycles registered in the state that are manufactured on or after 2013 or have an aftermarket exhaust system manufactured on or after 2013 must have the federal EPA noise emission label affixed to it in order to be operated, used, or parked in the state.
However, in order for us to enforce these regulations we are required to have a calibrated decibel meter! Psss..... we don't have calibrated decibel meters.
What we do have is section 27150 (a) which requires every motor vehicle to be equipped with "An adequate muffler in constant operation and properly maintained to prevent any excessive or unusual noise."
So what is excessive and unusual noise? If we can hear it from a distance of 50 feet, at freeway speeds, with our windows rolled up, and it is still uncomfortably loud, that is enough for us to stop that motorcycle for excessive exhaust noise.
After digesting this, does anybody agree that we should start a movement to get the dummos in Sacramento to fund calibrated decibel meters?
California Vehicle Code sections 27201 and 27202 established the following:
A noise limit of 92 decibels applies to any motorcycle manufactured before 1970. A noise limit of 88 decibels applies to motorcycles manufactured after 1969 and before 1973; 86 decibels applies to motorcycles manufactured after 1972 and before 1975; 83 decibels applies to motorcycles manufactured after 1974 and before 1986; 80 decibels applies to motorcycles manufactured after 1985.
Motorcycles registered in the state that are manufactured on or after 2013 or have an aftermarket exhaust system manufactured on or after 2013 must have the federal EPA noise emission label affixed to it in order to be operated, used, or parked in the state.
However, in order for us to enforce these regulations we are required to have a calibrated decibel meter! Psss..... we don't have calibrated decibel meters.
What we do have is section 27150 (a) which requires every motor vehicle to be equipped with "An adequate muffler in constant operation and properly maintained to prevent any excessive or unusual noise."
So what is excessive and unusual noise? If we can hear it from a distance of 50 feet, at freeway speeds, with our windows rolled up, and it is still uncomfortably loud, that is enough for us to stop that motorcycle for excessive exhaust noise.
After digesting this, does anybody agree that we should start a movement to get the dummos in Sacramento to fund calibrated decibel meters?