Arapahoe County has no leaf blower-specific ordinance. Operation must comply with general noise limits under C.R.S. §25-12-103 and county noise rules. Gas-powered blowers remain legal throughout unincorporated Arapahoe County. Cities within the county (Aurora, Centennial, Littleton) follow their own municipal noise codes but none ban gas blowers outright.
Arapahoe County Land Development Code and the county nuisance ordinance do not single out leaf blowers for equipment-specific regulation. Operation is governed by the Colorado state noise statute C.R.S. §25-12-103, which sets maximum permissible sound levels at 55 dB(A) residential nighttime (7 PM-7 AM) and 55 dB(A) daytime, with a 10 dB(A) daytime bump allowed for up to 15 minutes per hour per C.R.S. §25-12-103(2). Aurora Municipal Code Title 9 Chapter 74 and Centennial Municipal Code Chapter 7 both incorporate the state framework without gas blower bans. Front Range air quality concerns have prompted discussion at the CDPHE level (Regulation 7 ozone State Implementation Plan), but no Arapahoe County jurisdiction has adopted a California-style gas equipment phase-out. Commercial landscapers must still respect quiet hours and property-line dB limits.
Noise violations exceeding state dB limits: $150 to $500 for first offense under county nuisance code. Repeat violations may be charged as a Class 2 petty offense. No equipment-specific leaf blower penalties exist.
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