531.07  MOTOR VEHICLES AND MOTORCYCLES ON PUBLIC RIGHTS-OF-WAY.
   No person shall operate; cause to be operated or permit a public or private motor vehicle or motorcycle on a public right-of-way at any time in such a manner that the sound level, emitted by or from the motor vehicle or motorcycle, exceeds the level set forth in Table 2.
TABLE 2. MOTOR VEHICLE AND MOTORCYCLE SOUND LIMITS
 
Sound Level in dBA                                                                        Stationary Run-Up
Vehicle Class
Speed Limit 35 mph or Less (measured At 50 feet)
Speed Limit over35 mph (measured at 50 feet)
Stationary Engine Speed
Microphone Distance From Vehicle
Noise Limit dBA
Motor carried vehicle of GVWR or GCWR of 10,000 lbs.or more
86
90
For vehicles w/governors test at maximum governor speed. For vehicles w/o governors test at 75% of motor speed  at maximum developed horsepower
50 feet from center line of vehicle.
88
Any motorcycle
80
85
Test at 75% of motor speed at maximum developed horsepower
20 in. from  rear side of vehicle.
101
Any other vehicle or any combination of vehicles towed by any vehicle.
75
80
Test at 3000 rpm
20 in. from end of tail pipe.
90
(Ord.  7170-01.  Passed 5-14-01.)