State - Iowa | SEMA ACTION NETWORK

Emissions

None.

Exhaust Noise

Iowa Code

§ 321.436 Mufflers, prevention of noise.

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 cutout, bypass or similar device upon a motor vehicle on a highway.

License Plate

Antique

Available for vehicles that are at least 25 years old.

YOM

Vehicles registered as "Antique," "Replica" or "Street Rod" may display YOM plates with DMV approval. The antique, replica, or street rod plates and registration must be carried within the vehicle at all times.