Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 902 - SOUND EMISSION STANDARDS AND LIMITATIONS FOR MOTOR VEHICLES
Subpart B - OPERATIONAL STANDARDS
Section 902.123 - Exception for Motor Carriers Engaged in Interstate Commerce with Respect to Operations Regulated Under the Federal Noise Control Act of 1972

a) This Part applies to motor carriers engaged in interstate commerce with respect to noise emissions regulated by federal standards. Motor carrier operations subject to this Part are excepted from Sections 902.101, 902.102 and 902.121.

b) This Part applies to the operation of motor vehicles that have a GVWR or gross combination weight rating of more than 10,000 pounds, and only when those motor vehicles are operated under the conditions specified in this Section.

c) Except as provided in subsection (d), this Part applies to the total sound produced by motor vehicles when operating under the specified conditions, including the sound produced by auxiliary equipment mounted on the motor vehicles.

d) This Part does not apply to auxiliary equipment that is normally operated only when the transporting vehicle is stationary or is moving at a speed of 5 miles per hour or less. Examples of this equipment include, but are not limited to, cranes, asphalt spreaders, ditch diggers, liquid or slurry pumps, air compressors, welders, and refuse compactors.