Colorado fixes industrial noise ceilings at 80 decibels daytime and 75 decibels nighttime statewide under the Noise Abatement Act, with stricter local rules permitted but state minimums universal.
C.R.S. 25-12-103 establishes industrial zone limits of 80 dB(A) from 7:00 a.m. to 7:00 p.m. and 75 dB(A) from 7:00 p.m. to 7:00 a.m., measured at 25 feet from the property line of the source. Light industrial zones are capped at 70/65 dB(A). Sound that is periodic, impulsive, or shrill is treated as 5 dB(A) higher. The Act allows industrial sources to exceed the limit by up to 10 dB(A) for cumulative periods not exceeding 15 minutes per hour. Stationary industrial operations are evaluated at the receiving land use boundary when zones differ.
Public nuisance actions under C.R.S. 25-12-108 can compel abatement; chronic industrial exceedances may trigger CDPHE air-quality coordination and local zoning enforcement.
Northglenn, CO
Northglenn's Unified Development Ordinance (Article 11-4) caps single-family driveways at 40% of the lot width and 50% of the front-yard area, with no single...
Adams County, CO
In unincorporated Adams County, any fence or wall taller than 42 inches (3.5 ft) requires a building permit through the Adams County E-Permit Center. Fences ...
Adams County, CO
Adams County Ordinance No. 6 (Pet Animal Licensing and Control), updated by Resolution 2022-043 (Animal Control Code), requires dogs in unincorporated Adams ...
Adams County, CO
Only 'permissible fireworks' under Colorado C.R.S. 12-28-101(8) - sparklers, ground spinners, fountains, and snakes - are legal in Colorado. All aerial devic...
Adams County, CO
Unincorporated Adams County does not impose STR-specific parking minimums. The Development Standards and Regulations Chapter 4 off-street parking rules for t...
Adams County, CO
Unincorporated Adams County has no STR-specific occupancy cap in the Development Standards and Regulations. Industry guidance commonly applies a 'two per bed...
See how Northglenn's industrial noise rules stack up against other locations.
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