Noise from Specific Sources in New Hampshire (2026)
6 rules on the books across New Hampshire, 2 cities and counties. Select a rule to read the full details.
Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions
HVAC & Mechanical Noise
Noise limits for air conditioners, heat pumps, pool equipment, and other mechanical systems, including decibel thresholds measured at the property line.
Manchester
Some RestrictionsManchester gives air conditioners, heat pumps, and other fixed mechanical equipment no special exemption: they're held…
Read full rule →Nashua
Some RestrictionsNashua requires nonresidential HVAC equipment, exhaust fans, and vents next to a residential district to be visually…
Read full rule →Bar & Nightclub Noise
Noise regulations specific to bars, nightclubs, and entertainment venues, including bass frequency limits, soundproofing requirements, and complaint procedures.
Car Alarm Limits
Maximum duration for car alarms before they must auto-silence, penalties for repeated false alarms, and vehicle towing authority for chronic alarm violations.
Generator Noise
Rules for portable and standby generators, including permitted operating hours, decibel limits, and restrictions during non-emergency use.
Delivery Truck Noise
Time-of-day restrictions on commercial delivery trucks operating in residential zones, including back-up beepers, refrigeration units, and engine idling.