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Outdoor Lighting in Tennessee (2026)

35 rules on the books across Tennessee, 15 cities and counties. Select a rule to read the full details.

Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions

Dark Sky Rules

Ordinances designed to reduce light pollution, including requirements for shielded fixtures, limits on brightness, and curfews for decorative lighting.

Chattanooga

Some Restrictions

Chattanooga's Exterior Lighting Controls cap outdoor light spilling onto neighboring lots. Sec. 38-47(b) sets a maximum…

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Franklin

Some Restrictions

Franklin's 2026 Zoning Ordinance requires exterior lighting to be shielded and aimed downward, bans fixtures relying…

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Hendersonville

Some Restrictions

Non-residential light poles and building-mounted fixtures in Hendersonville must use fully shielded luminaires, capped…

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Knox County

Some Restrictions

Knox County has no formal dark-sky ordinance, but its Zoning Ordinance requires outdoor lighting for parking, storage…

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Knoxville

Some Restrictions

Knoxville, Tennessee (Knox County) requires all new or altered outdoor light fixtures on nonresidential, multifamily…

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Memphis

Some Restrictions

Commercial, multi-family and mixed-use sites across Memphis and unincorporated Shelby County must curtail light…

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Murfreesboro

Some Restrictions

Murfreesboro's zoning ordinance caps site lighting at a 35-degree shielded cutoff, limits spillover to half a…

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Nashville

Some Restrictions

Metro Nashville requires full cutoff outdoor light fixtures and lets commercial developers meet International Dark-Sky…

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Rutherford County

Some Restrictions

Rutherford County has no formal dark-sky ordinance, but its zoning performance standards require all site lighting to…

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Shelby County

Some Restrictions

In unincorporated Shelby County, the Unified Development Code (UDC 4.7) sets outdoor site-lighting standards to curtail…

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Sullivan County

Some Restrictions

Sullivan County's Zoning Resolution requires all site lighting in commercial and manufacturing districts, and at…

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Sumner County

Some Restrictions

Tennessee has no dark-sky statute, but Sumner County's Zoning Resolution (Section 1107) limits glare to 0.5…

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Williamson County

Some Restrictions

Non-residential development in unincorporated Williamson County must aim outdoor light fixtures downward and shield…

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Clarksville

Few Restrictions

Clarksville has adopted no dark-sky or night-sky ordinance, no lumen caps, and no color-temperature limits. The one…

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Light Trespass & Shielding

Rules preventing outdoor lights from shining onto neighboring homes, shielding and full-cutoff fixture requirements, aiming standards, and footcandle caps at the property line.

Chattanooga

Some Restrictions

Security lighting in Chattanooga must meet the one-footcandle, full-cutoff standard unless it runs on a motion vacancy…

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Franklin

Some Restrictions

Franklin's zoning code caps light spill: fixtures must minimize glare on neighbors, stay within a 35-degree beam angle…

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Hendersonville

Some Restrictions

Hendersonville caps light spilling from a commercial property onto a neighboring residential lot at one foot-candle…

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Knox County

Some Restrictions

Knox County's zoning ordinance requires outdoor lighting used for parking lots, outdoor storage, product display or…

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Knoxville

Some Restrictions

Knoxville caps nonresidential and multi-family outdoor lighting at one footcandle at any lot line and requires shielded…

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Memphis

Some Restrictions

Memphis and unincorporated Shelby County require non-residential and multi-family site lighting to stay off neighboring…

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Murfreesboro

Some Restrictions

Murfreesboro's zoning code caps outdoor lighting spillover: fixtures must be shielded, angled no more than 35 degrees…

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Nashville

Some Restrictions

Metro Nashville requires all outdoor lighting, including residential security floodlights, to be full cutoff and…

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Rutherford County

Some Restrictions

The Rutherford County Zoning Ordinance defines light trespass as light from an outdoor luminaire that shines beyond the…

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Shelby County

Some Restrictions

In unincorporated Shelby County, the Unified Development Code (UDC 4.7) requires regulated outdoor lighting to minimize…

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Sullivan County

Some Restrictions

Sullivan County caps how much light from a commercial or manufacturing use can reach next-door residential land at four…

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Sumner County

Some Restrictions

Sumner County's Zoning Resolution requires all site lighting to be shielded so directly emitted light stays within the…

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Williamson County

Some Restrictions

Exterior lighting on covered development in unincorporated Williamson County cannot shine directly into a neighbor's…

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Clarksville

Few Restrictions

Clarksville's no-spillover language is real but narrow. Zoning Ordinance 5.10 exempts single-family and two-family…

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