Outdoor Lighting in Jefferson Parish, LA (2026)
3 rules for unincorporated Jefferson Parish, Louisiana.
Verified from official government sources
Dark Sky Rules
Jefferson Parish bans mercury-vapor fixtures outright on covered sites and caps outdoor lighting height by zoning district. Sec. 33-6.9.3.2(c) prohibits the installation of any mercury-vapor fixture or lamp, while subsection (a) sets a 25-foot height table for the CPZ-Ped and TCMU districts.
Mercury-Vapor Outdoor Lights Banned
Some RestrictionsJefferson Parish Code of Ordinances Sec. 33-6.9.3.2(a), (c)
(a)Maximum height standards are provided in Table 33-6.9.3.2-1. [...] (c)The installation of any mercury-vapor fixture or lamp is prohibited.
Light Trespass & Shielding
Jefferson Parish bars covered commercial, industrial, multi-family, and civic sites from aiming outdoor light at residential property. Sec. 33-6.9.3.2(b) prohibits any luminaire aimed, directed, reflected, focused, or mounted so its light lands on residential uses or creates glare for drivers on public streets.
No Directing Outdoor Light Onto Homes
Some RestrictionsJefferson Parish Code of Ordinances Sec. 33-6.9.3.2(b)
(b)Outdoor illumination of any building, seating area, plaza, courtyard, landscaping, sign, or similar purpose shall not be aimed, directed, reflected, focused, or mounted to cause direct light from the luminaire to be directed toward residential uses, or to create up light, spill light, or glare perceptible to persons operating motor vehicles on public ways.
Billboard Lighting
Jefferson Parish caps electronic variable message billboards and other EVM signs at 323 candelas per square meter between sunset and sunrise, or 0.3 foot-candle above ambient light, whichever governs. Every EVM sign, on-premises or off-premises, needs factory-installed ambient light sensors and a manufacturer certification filed with the sign permit confirming the preset intensity can't be tampered with by the operator.
Billboard Lighting Limits in Jefferson Parish
Some RestrictionsJefferson Parish Code of Ordinances § 40-682(3)(e)
e. Lighting. The sign shall be equipped with light sensors in accordance with the following: 1. Controls. Ambient light sensors shall be installed prior to the sign's erection on a site and shall automatically adjust the light intensity of the sign based on ambient light conditions. 2. Certification. At the time of application for a sign permit, written certification from the sign manufacturer ...
All Jefferson Parish ordinances
See every category we cover for Jefferson Parish: parking, noise, fences, fires, animals, pools, and more.
Jefferson Parish Ordinance Hub →