Other EquipmentNoise Limits
Section § 27200
This law states that the DMV in California cannot register new vehicles that produce noise above a certain limit, except for certain off-road vehicles. The California Highway Patrol sets the noise test procedures, considering guidelines from the Society of Automotive Engineers. Dealers can provide certificates proving compliance with noise regulations. It's illegal to sell new vehicles that either exceed these noise limits or violate noise emission standards by the EPA, based on the Noise Control Act. The term 'register' here is the same as 'licensing' under related federal law.
Section § 27201
This law states that motorcycles made before 1970 have a noise limit of 92 decibels (dB). This means they shouldn't be louder than this specific noise level as measured in decibels.
Section § 27202
This law section sets noise limits for motorcycles, excluding motor-driven cycles, based on the year they were manufactured. If a motorcycle was made after 1969 and before 1973, it has a noise limit of 88 decibels. For those made after 1972 and before 1975, the limit is 86 decibels. Motorcycles made after 1974 and before 1986 must not exceed 83 decibels, and those made after 1985 should stay under 80 decibels.
Section § 27202.1
Section § 27203
This law states that snowmobiles made after 1972 cannot exceed a noise level of 82 decibels (dbA).
Section § 27204
This law section sets specific noise limits for motor vehicles in California based on their weight and the date they were manufactured. For vehicles weighing over 6,000 pounds manufactured between 1968 and 1972, the noise limit is 88 decibels (dbA). For those made from 1973 to 1974, it is 86 dbA, and from 1975 to 1977, it is 83 dbA. Vehicles over 8,500 pounds from 1978 to 1981 are also limited to 83 dbA.
For vehicles over 6,000 but not over 8,500 pounds made after 1977, and those over 8,500 but not over 10,000 pounds made after 1981, the noise limit is 80 dbA. Finally, vehicles over 10,000 pounds made from 1982 to 1987 must adhere to an 83 dbA limit, while those produced after 1987 must meet an 80 dbA limit.
Manufacture
Limit—dbA
over 8,500
over 10,000
Section § 27206
This law sets specific noise limits for motor vehicles not mentioned elsewhere in the regulations, based on when they were manufactured. Vehicles made after 1967 and before 1973 have an 86 decibel limit. Vehicles made after 1972 and before 1975 have an 84 decibel limit. Vehicles manufactured after 1974 have an 80 decibel limit. These rules help manage noise pollution from vehicles.
Section § 27207
This law states that heavy vehicles, over 10,000 pounds and with an engine speed governor, must not be louder than 88 decibels when tested. This sound level is measured from 50 feet away while the vehicle is stationary, with its engine revved to the maximum speed achievable by the governor. If testing at a different distance, results must be adjusted to reflect the 50-foot measurement standard. The Department will establish the testing methods, considering Department of Transportation standards.