Outdoor Lighting in Rancho Cucamonga, CA (2026)
2 verified outdoor lighting rules for Rancho Cucamonga, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Dark Sky Rules
Rancho Cucamonga's outdoor lighting chapter is written explicitly to preserve dark skies: Development Code Section 17.58.010 states the city's purpose is to limit light pollution and maintain darkness for night sky viewing, and Section 17.58.040 bans search lights, laser lights, neon band lighting, and full building illumination outright.
Rancho Cucamonga Dark Sky Lighting Rules
Some RestrictionsRancho Cucamonga, CA, Development Code Sec. 17.58.010 (Purpose); Sec. 17.58.050(D) (Level of Illumination)
The purpose of this chapter is to regulate lighting to balance the safety and security needs for lighting with the city's desire to limit light pollution from outdoor sources, preserve dark skies, maintain darkness for night sky viewing, and ensure that light trespass and glare have negligible impact on surrounding property (especially residential) and roadways. ... Outdoor lighting shall be de...
Light Trespass & Shielding
Outdoor lighting in Rancho Cucamonga must be fully shielded and aimed away from neighboring land under Development Code Section 17.58.050. Section 17.58.050(A) bars glare and light trespass or spillover onto adjacent properties, and Section 17.58.050(C) requires every fixture to be recessed or downward-shielded so it never directly illuminates land outside the project site.
Rancho Cucamonga Light Trespass Rules
Some RestrictionsRancho Cucamonga, CA, Development Code Sec. 17.58.050(A),(C) (General Lighting Requirements - Nuisance Prevention, Shielding)
Nuisance prevention. All outdoor lighting shall be designed, located, installed, directed downward or toward structures, fully shielded, and maintained in order to prevent glare, light trespass/spillover onto adjacent properties, and light pollution. ... Shielding. Except as otherwise exempt, all outdoor lighting shall be recessed and/or constructed with full downward shielding in order to redu...
Looking for San Bernardino County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Rancho Cucamonga city rules.
Outdoor Lighting in San Bernardino County →