35 Ill. Adm. Code 902.122
Standards Applicable to Motorcycles and Motor Driven Cycles
Section 902
Section 902.122Â Standards
Applicable to Motorcycles and Motor Driven Cycles
Operation of any motorcycle or motor driven cycle must
comply with the motorcycle noise emission standards at 40 CFR 205.152(a) and
the motorcycle exhaust systems noise emissions standards at 40 CFR 205.166,
incorporated by reference at 35 Ill. Adm. Code 900.106.