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Port St. Lucie, FL Noise Ordinances: Vehicle Noise (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified July 2026

Key Facts

Horn limit
30 seconds, except danger warning
Car stereo
Not plainly audible at 25 feet
Alarm curfew
No intentional alarms 10 p.m. to 7 a.m.
Alarm testing
30 seconds maximum, any time
Engine and exhaust noise
Exempt per F.S. chs. 316, 403

Summary

Port St. Lucie bans sounding a vehicle horn continuously for more than 30 seconds and car audio plainly audible 25 feet away. General motor-vehicle noise is exempted to the extent Florida Statutes chapters 316 and 403 specify.

(a) Horns, signaling devices. The sounding of any horn or signaling device on any motor vehicle on any street or public place in the city continuously and/or incessantly for a period in excess of 30 seconds, except as a danger warning. ... (f) Emergency signaling devices: (1) Except in case of an emergency, the intentional sounding of any alarm between the hours of 10:00 p.m. and 7:00 a.m.; (2) The testing of any alarm for a period in excess of 30 seconds at any time.

Source: City of Port St. Lucie Code of Ordinances (Municode)View official code

Full Breakdown

Sec. 94.06(a) prohibits sounding a horn or signaling device on any motor vehicle on a street or public place continuously or incessantly for more than 30 seconds, except as a danger warning. Sec. 94.06(b)(4) is the stereo rule: sound reproduced in a motor vehicle may not be plainly audible at a distance of 25 feet. Sec. 94.05(e) exempts noise from the operation of a motor vehicle to the extent specified in F.S. chs. 316 and 403, leaving engine and exhaust noise to state law. Vehicle alarms may not be sounded intentionally between 10:00 p.m. and 7:00 a.m., and no alarm may be tested for more than 30 seconds.

Violations & Fines

Sec. 94.08 puts enforcement with code enforcement officers and sets penalties under Chapter 37. It also declares all violations irreparable, which under Sec. 37.09 supports a fine of up to $15,000 per violation.

Frequently Asked Questions

Is leaning on a car horn illegal in Port St. Lucie?
Yes. Sec. 94.06(a) prohibits sounding a horn or signaling device on any motor vehicle on a street or public place continuously or incessantly for more than 30 seconds, except as a danger warning.
Who regulates loud exhaust or modified mufflers?
Not the city noise chapter. Sec. 94.05(e) exempts noise from the operation of a motor vehicle to the extent specified in Florida Statutes chapters 316 and 403, leaving exhaust noise to state law.

Sources & Official References

Other rules in Port St. Lucie

Quiet HoursSome RestrictionsConstruction HoursSome RestrictionsBarking DogsSome RestrictionsAmplified Music & Outdoor SoundHeavy RestrictionsAircraft NoiseFew RestrictionsParking Rules: Driveway RulesSome RestrictionsParking Rules: Abandoned VehiclesSome RestrictionsFence Regulations: Neighbor Fence RulesSome RestrictionsFence Regulations: Retaining WallsSome RestrictionsAnimal Ordinances: MicrochippingLight RestrictionsAnimal Ordinances: Cat RulesSome Restrictions

All Port St. Lucie rules

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