Pueblo, CO Noise from Specific Sources: Generator Noise (2026)
Key Facts
- Standard noise cap
- 70 decibels at property line
- I-2/I-3/S-1 cap
- 80 decibels
- Testing hours
- 6 a.m.–8 p.m. only
- Annual testing cap
- 470 hours/year
- Daily testing cap
- 8 hours/day
Summary
Running a standby generator in Pueblo for non-emergency purposes caps out at 70 decibels at the property line, 80 in industrial and S-1 zones, with no discernible vibration allowed.
Sound levels of noise resulting from the operation for nonemergency purposes of emergency standby engines or emergency generators authorized as a use by review shall not exceed seventy (70) decibels; and if located in an I-2, I-3 or S-1 zone shall not exceed eighty (80) decibels... the sound level limitations apply at the property line of the property upon which the engine or generator is located... In addition, no vibration resulting from such operation shall be discernable at the property line.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 109).
Full Breakdown
Chapter 13 of Title XVII regulates emergency standby engines and generators as a zoning use. Section 17-13-3(b) sets the noise ceiling for non-emergency operation, testing, maintenance or demonstration runs, at 70 decibels measured at the property line, rising to 80 decibels in I-2, I-3 or S-1 zone districts, with no discernible vibration at the line either. Non-emergency use is separately capped under Section 17-13-3(a) at 8 hours a day, 470 hours a year, 120 days a year, and only between 6:00 a.m. and 8:00 p.m. Actual emergency operation during a power outage or declared emergency isn't subject to these limits.
Violations & Fines
Exceeding the decibel cap or running outside the permitted hours violates Title XVII and is punishable under § 17-7-3(c) by a fine up to $1,000, with each day a separate offense.
Frequently Asked Questions
How loud can my backup generator legally run in Pueblo?
Can I test my generator in the evening?
Sources & Official References
Other rules in Pueblo
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