Noise from Specific Sources in Denver, CO (2026)
4 verified noise from specific sources rules for Denver, Colorado, sourced directly from the municipal code and official government pages.
Verified from official government sources
Bar & Nightclub Noise
Denver caps commercial noise, including from bars and nightclubs, at 55 dB(A) daytime and 50 dB(A) overnight where it crosses onto a residential property line.
Denver Bar and Nightclub Noise Limits
Some RestrictionsDenver Revised Municipal Code § 36-6
It shall be unlawful for any person to emit or cause to be emitted any noise that leaves the premises on which it originates, crosses a property line, and enters onto any other premises in excess of the sound pressure levels permitted during the time periods specified in Table A. ... Commercial [source] ... Residential [receptor] 55 [7am-10pm] 50 [10pm-7am]
Car Alarm Limits
Denver treats a car alarm audible outside the vehicle as an unlawful nuisance if it runs past fifteen minutes or trips three or more times in a week without a valid alarm permit.
Denver Car Alarm Time Limits
Some RestrictionsDenver Revised Municipal Code § 36-7(a)(2)
It is an unlawful nuisance for any alarm that is audible outside the premises or vehicle in which it is installed or that it is intended to protect and for which there is not a valid alarm user permit issued pursuant to section 42-106 of this Code, to be activated: a) for a period exceeding fifteen (15) minutes; or b) three (3) or more times within a seven (7) day period when no emergency is fo...
Generator Noise
Denver limits routine testing of emergency backup generators to 88 dB(A) measured at 25 feet or the property line, confined to 10 a.m.-4 p.m., and capped at one hour per week or two hours per six weeks.
Denver Caps Generator Testing Noise at 88 dB
Some RestrictionsDenver Revised Municipal Code § 36-6(b)(10)
The sound pressure level emitted during the routine testing of emergency electrical power generators shall not exceed eighty-eight (88) dB(A) at a distance of twenty-five (25) feet or a receptor premises' property line, whichever is greater. Routine testing shall not exceed one (1) hour in any one-week period, or two (2) hours in any six-week period and shall be confined to the hours of 10:00 a...
Delivery Truck Noise
Denver's noise code exempts delivery and delivery activities between 7:00 a.m. and 10:00 p.m. from the sound pressure limits in Table A; overnight deliveries must still meet those numeric limits, and construction-site deliveries follow separate hours.
Denver Exempts Daytime Delivery Truck Noise
Some RestrictionsDenver Revised Municipal Code § 36-6(b)(7)
(7)Delivery and delivery activities conducted between the hours of 7:00 a.m. and 10:00 p.m. This exemption excludes construction site deliveries, which are governed by subsection 36-7(a)(7) of this chapter.