Outdoor Lighting in Pasco, WA (2026)
2 verified outdoor lighting rules for Pasco, Washington, sourced directly from the municipal code and official government pages.
Verified from official government sources
Dark Sky Rules
Pasco splits the city into two lighting zones and requires every outdoor lighting system to be shielded so the shield's edge sits level with or below the light source's center, keeping upward glare to a minimum citywide.
Pasco Outdoor Lighting Shielding Requirement
Some RestrictionsPasco Municipal Code § 12.32.020
All outdoor lighting systems installed in zone one or zone two on or after 30 days from the effective date of the ordinance codified herein shall be shielded from above in such a manner that the edge of the shield shall be level with or below the center of the light source so that any direct light emitted above the horizontal is minimized. All outdoor lighting fixtures installed in zone two on ...
Billboard Lighting
Pasco's outdoor lighting chapter expressly includes billboard lighting as a regulated fixture. Illuminating an outdoor sign or billboard with light projected above the horizontal between midnight and sunrise is unlawful, and all such fixtures must use approved lighting sources and shielding.
Pasco Billboard and Sign Lighting Rules
Some RestrictionsPasco Municipal Code §§ 12.32.010, 12.32.040(4)
“Outdoor lighting fixture” includes but is not limited to lighting for billboards, street lights, shopping center or parking area lights, externally or internally illuminated on-site or business advertising signs and yard-type lighting. ... The illumination of outdoor signs by lighting projected above the horizontal between midnight and sunrise [is unlawful].
Looking for Franklin County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Pasco city rules.
Outdoor Lighting in Franklin County →