Vehicle Noise: Arvada vs Lakewood
How do vehicle noise rules compare between Arvada, CO and Lakewood, CO?
Arvada and Lakewood have similar restriction levels.
Arvada, CO
Jefferson County
Every vehicle in unincorporated Jefferson County must have a working, unmodified muffler. On roads posted 35 mph or less, most vehicles may not exceed 80 dB(A) (measured 50 feet from the lane center); cutoffs and bypasses are prohibited.
View full Arvada rules →Lakewood, CO
Jefferson County
Every vehicle in unincorporated Jefferson County must have a working, unmodified muffler. On roads posted 35 mph or less, most vehicles may not exceed 80 dB(A) (measured 50 feet from the lane center); cutoffs and bypasses are prohibited.
View full Lakewood rules →Key Facts Comparison
| Fact | Arvada | Lakewood |
|---|---|---|
| Muffler | Required, constant operation | Required, constant operation |
| Cutoff / bypass | Prohibited | Prohibited |
| Most vehicles, <=35 mph | 80 dB(A) at 50 ft | 80 dB(A) at 50 ft |
| On private property | 78 dB(A) max | 78 dB(A) max |
| Also enforced under | CRS 42-4-225 | CRS 42-4-225 |
Highlighted rows indicate differences between cities.
Arvada FAQ
Are loud modified exhausts illegal?
Yes. Operating a vehicle with a cutoff, bypass, or modified muffler is prohibited countywide and is also a Class B traffic infraction under Colorado law.
How is vehicle noise measured?
For a vehicle on a public road, sound is measured 50 feet from the center of the lane of travel; on private property, 25 feet from the nearest dwelling.
Lakewood FAQ
Are loud modified exhausts illegal?
Yes. Operating a vehicle with a cutoff, bypass, or modified muffler is prohibited countywide and is also a Class B traffic infraction under Colorado law.
How is vehicle noise measured?
For a vehicle on a public road, sound is measured 50 feet from the center of the lane of travel; on private property, 25 feet from the nearest dwelling.
Compare other topics
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