Chattanooga's Noise Ordinances: The Rules That Matter

Every city handles noise ordinances a little differently. In Chattanooga, Tennessee, there are 7 distinct rules that residents and property owners should be aware of. Some are stricter than what neighboring cities enforce, and others are more relaxed. Here is what you need to know.

Barking Dogs

Chattanooga's noise ordinance makes a barking dog a punishable nuisance once it hits a measurable threshold: ten or more barks a minute for five straight minutes, audible from 100 feet away, that disturbs a neighbor in a residence, hotel, motel or hospital. City Code § 25-68(a)(4) exempts dogs responding to an emergency or a trespasser, and City Court can fine an owner up to $500 per violation under § 25-74.

Key details: Governing section: City Code § 25-68(a)(4). Barking threshold: 10+ barks/min for 5 min, heard 100+ ft. Exemptions: Emergency response or trespasser barking. Citation fine: $50 per violation. Max combined penalty: $500 per violation, § 25-74.

A City Court judge can impose a $50 citation fine for each violation of § 25-68(a)(4), plus a civil penalty of up to $500 to cover the city's enforcement costs, or a conditional civil penalty up to $500 that is waived if no repeat violation occurs within a year; combined fines and penalties for a single violation cap at $500 under § 25-74. Under the parallel Chapter 7 process, Animal Services gives a ten-day correction warning before the first citation, then treats each additional day of barking as a separate citable offense.

Vehicle Noise

Chattanooga requires a working muffler on every street-driven vehicle and caps vehicle noise at 90 decibels, with engine brakes needing an approved muffler.

Key details: Noise limit: 90 decibels. Muffler cutouts: Prohibited outright. Engine brakes: Require approved muffler. Test distance: 10 ft from left rear.

Driving without a functioning muffler, running a muffler cutout, or operating an unapproved engine compression brake is a citable Code violation enforced by Chattanooga Police; areas signed for excessive noise get added enforcement.

Decibel Limits

Chattanooga caps sound amplification equipment at 55 dB(A) from 9 a.m. to 9 p.m. and 50 dB(A) overnight, measured at the nearest residential property line, hospital, school, or nursing home.

Key details: Daytime limit: 55 dB(A), 9 a.m.-9 p.m.. Nighttime limit: 50 dB(A), 9 p.m.-9 a.m.. Measured at: Nearest residential property line. Permit issuer: Chief building official.

Unpermitted excess amplification draws a $50 citation and up to a $500 civil penalty per violation under § 25-74; repeat infractions can trigger permit suspension or a forced closure.

Leaf Blower Rules

In Chattanooga residential zones, lawnmowers and leaf blowers are barred 8:30 p.m. to 7:00 a.m. unless adjoining neighbors consent.

Key details: Residential cutoff: 8:30 p.m.-7:00 a.m.. Citywide cutoff: 9:00 p.m.-7:00 a.m.. Exception: Adjoining owner consent. Fine: $50 citation, up to $500 civil.

Enforced under Article III's penalty scheme, Sec. 25-74: a $50 citation fine plus a possible civil penalty up to $500 through Chattanooga City Court.

Construction Hours

Chattanooga City Code § 25-68(a)(8) confines construction noise, building erection, demolition, alteration or repair, and street excavation, in residential areas to 7:00 a.m. to 8:00 p.m. Work outside those hours needs a building inspector's permit, granted only for urgent public-health or safety necessity and capped at thirty days while the emergency lasts.

Key details: Governing section: Chattanooga City Code § 25-68(a)(8). Allowed hours: 7:00 a.m. to 8:00 p.m.. After-hours permit: building inspector, max 30 days. Max citation fine: $50 per violation. Max civil penalty: $500 per violation, § 25-74.

Article III's enforcement section, § 25-74, lets city court impose a $50.00 citation fine for each violation, plus a civil penalty of up to $500.00 to recover the city's administration costs, or a conditional civil penalty up to $500.00 that's purged if the violator stays clean for a year. Combined fines and penalties for one violation can't exceed $500.00, and repeat violators can be referred to the appropriate city regulatory board for permit suspension.

Quiet Hours

Chattanooga City Code § 25-79(a)(2) bars playing amplified music loud enough to disturb neighbors in residential zones between 8:30 p.m. and 10:00 a.m. The rule exempts city-permitted block parties, festivals and park reservations issued under § 24-100, and it sits alongside a matching 8:30 p.m. to 7:00 a.m. curfew on yelling and street noise in § 25-79(a)(3).

Key details: Governing section: Chattanooga City Code § 25-79(a)(2). Quiet hours: 8:30 p.m. to 10:00 a.m.. Exempt: permitted events under § 24-100. Companion rule: yelling barred 8:30 p.m.-7 a.m., (a)(3). Max penalty: $500 per violation, § 25-74.

A quiet-hours citation is enforced under § 25-74: a $50.00 fine per violation, plus a civil penalty of up to $500.00 to recover the city's administrative costs, or a conditional civil penalty up to $500.00 that's purged if the violator stays clean of another Article III violation for a year. Combined fines and penalties for a single violation cannot exceed $500.00.

Amplified Music & Outdoor Sound

Chattanooga caps amplified advertising sound at 60 dB(A) measured at the nearest public right-of-way or park boundary, targeting loudspeakers and PA systems businesses use to draw in customers.

Key details: Advertising sound limit: 60 dB(A) at ROW/park boundary. Personal-use night limit: 50 dB(A), 50 ft from speaker. Permit issuer: Chief building official. Base fine: $50 citation per violation.

Violations bring a $50 citation plus up to a $500 civil penalty per offense under § 25-74; a venue that won't lower its levels can be closed until its next normal opening time.

The Bottom Line

Chattanooga's noise ordinances rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Chattanooga is broadly strict or permissive.

Keep in mind that Chattanooga can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.