(625 ILCS 5/1-148.3a)

Sec. 1-148.3a. Muffler. A device consisting of a series of chambers or baffle plates or other mechanical design for the purpose of receiving exhaust gas from an internal combustion engine or turbine wheels for the purpose of receiving exhaust gas from a diesel engine, all of which are effective in reducing noise.

(Source: P.A. 90-89, eff. 1-1-98.)