Noise from Specific Sources in Doña Ana County, NM (2026)
2 rules for unincorporated Doña Ana County, New Mexico.
Verified from official government sources
HVAC & Mechanical Noise
Doña Ana County bars nighttime operation of any stationary air conditioner, fan or other permanently installed mechanical equipment that exceeds the Code § 261-11 decibel table on neighboring property. Emergency repair work needed to restore safety, utilities or protect against imminent danger is exempt under § 261-21(A).
Doña Ana County HVAC and Equipment Noise Limit
Some RestrictionsDoña Ana County Code § 261-21(A)
EMERGENCY WORK: Work made necessary to restore property to a safe condition following a public calamity, work to restore public utilities, or work required to protect persons or property from an imminent exposure to danger. ... § 261-21. Machinery, equipment, fans, and air conditioners. A. At nighttime, except for emergency work as defined in this article, no person shall operate or allow the o...
Generator Noise
Doña Ana County's Noise Control Ordinance caps nighttime sound from stationary equipment, including generators, at 50 decibels on residential land, 60 on office/commercial, and 70 on industrial, measured at the receiving property (Code §§ 261-21, 261-11). The County's Wireless Communications Facilities code confirms backup generators must meet those standards whenever technically and financially practical.
Doña Ana County Nighttime Generator Noise Limits
Some RestrictionsDoña Ana County Code § 261-21.A
A. At nighttime, except for emergency work as defined in this article, no person shall operate or allow the operation of any stationary machinery, equipment, fan, air-conditioning apparatus, or similar permanently installed mechanical device in any manner so as to create noise which exceeds the Table 1 limits specified in § 261-11.
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