2 rules for unincorporated Prince George's County, Maryland.
Verified from official government sources
The 2022 Zoning Ordinance requires all exterior luminaires, including security lighting, to be full cut-off fixtures directed downward, with no light directed above a horizontal plane through the fixture (Sec. 27-6706(b)). Fixtures must produce at least 80 lumens per watt.
Sec. 27-6706(b)
All exterior luminaries, including security lighting, shall be full cut-off fixtures that are directed downward… In no case shall lighting be directed above a horizontal plane through the lighting fixture…
The 2022 Zoning Ordinance limits light spillover across property lines. Illumination measured at a lot line abutting residential use or vacant land in Rural, Agricultural, and Residential zones may not exceed 0.5 foot-candles; higher limits apply for commercial and industrial neighbors (Sec. 27-6706(c)).
Sec. 27-6706(c)(1)
…all exterior lighting and indoor lighting visible from outside shall be designed and located so that the maximum illumination measured in foot-candles at ground level at a lot line shall not exceed the standards in Table 27-6706(c).1…
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