(a) Every motor vehicle shall at all times be equipped with a muffler in good working order and in constant operation to prevent excessive or unusual noise and annoying smoke, and no person shall use a muffler cut-out, bypass, a muffler without baffles, or similar device upon a motor vehicle on a highway.
(b) The engine and power mechanism of every motor vehicle shall be so equipped and adjusted as to prevent the escape of excessive fumes or smoke.
Structure Code of Alabama
Title 32 - Motor Vehicles and Traffic.
Chapter 5 - Regulation of Operation of Motor Vehicles, etc., Generally.
Division 1 - General Provisions.
Section 32-5-210 - Restrictions as to Tire Equipment.
Section 32-5-211 - Flag or Light at End of Load.
Section 32-5-213 - Horns and Warning Devices.
Section 32-5-215 - Windshields Must Be Unobstructed; Windshield Wipers; Tinting.
Section 32-5-216 - Mufflers; Prevention of Noise, Smoke, Etc.
Section 32-5-217 - Safety Belts.
Section 32-5-218 - Safety Glazing Material in Motor Vehicles.
Section 32-5-219 - Location of Television Viewers.
Section 32-5-221 - Flares or Other Warning Devices - Display.
Section 32-5-222 - Requirements for Child Passenger Restraints.