Illinois Administrative Code (Last Updated: March 27, 2024) |
TITLE35. ENVIRONMENTAL PROTECTION |
PART902. SOUND EMISSION STANDARDS AND LIMITATIONS FOR MOTOR VEHICLES |
SUBPARTB. OPERATIONAL STANDARDS |
§902.120. Standards Applicable to all Passenger Cars and to Other Motor Vehicles with Gross Vehicle Weight (GVW) of 8,000 Pounds or Less
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a) This Section applies to all passenger cars regardless of weight and to other motor vehicles with a GVW of 8,000 pounds or less, except motorcycles and motor driven cycles.
b) Operation of a motor vehicle subject to this Section at any time under any conditions of highway grade, load, acceleration or deceleration must not exceed the following limits:
1) On highways with speed limits of 35 miles per hour or less, 74 dB(A), or 76 dB(A) when operating on a grade exceeding 3%, measured with fast meter response at 50 feet from the centerline of lane of travel;
2) On highways with speed limits of more than 35 miles per hour, 82 dB(A), or 85 dB(A) if the vehicle is equipped with two or more snow or mud/snow tires, measured with fast meter response at 50 feet from the centerline of lane of travel.
(Source: Amended at 42 Ill. Reg. 20474, effective November 1, 2018)