(a) A person may not modify the exhaust system or any other noise abatement device of a motor vehicle driven or to be driven on any highway in this State in such a way that the noise emitted by the vehicle exceeds that emitted by the vehicle as originally manufactured.
(b) A person may not drive on any highway in this State a motor vehicle with an exhaust system or noise abatement device modified in a way prohibited by subsection (a) of this section.
Structure Maryland Statutes
Title 22 - Vehicle Laws -- Equipment of Vehicles
Subtitle 6 - Noise Abatement Program
Section 22-601 - Motor Vehicle Operation -- Establishment of Sound Level Limits
Section 22-602 - Motor Vehicle Operation -- Operation Not to Exceed Maximum Limits
Section 22-603 - Motor Vehicle Operation -- Regulations for Administration and Enforcement
Section 22-604 - Motor Vehicle Operation -- Exemption of Emergency Vehicles
Section 22-605 - New Motor Vehicles -- Establishment of Sound Level Limits
Section 22-606 - New Motor Vehicles -- Vehicles Not to Exceed Maximum Limits
Section 22-607 - New Motor Vehicles -- Regulations for Administration and Enforcement
Section 22-608 - New Motor Vehicles -- Certificate of Compliance
Section 22-609 - Modification of Exhaust System
Section 22-610 - Sale of Mufflers and Other Abatement Devices
Section 22-611 - Operation of a Commercial Motor Vehicle Equipped With Engine Brakes