2 county-level rules, plus city-specific rules for 2 cities in Adams County, Colorado.
Verified from official government sources
Adams County has no formal dark-sky ordinance, but its operational standards require exterior lighting to be shielded, low-level, indirect and diffused, and no taller than 20 feet, positioned so no direct light or glare reflects onto neighboring property or roads.
Adams County DSR Sec. 4-16-01(3) (Lighting Fixtures)
All lighting fixtures shall be located so as to shield direct rays from adjoining properties. Luminaries shall be of a low level, indirect, diffused type and shall not exceed a height of greater than twenty (20) feet above finished grade.
Exterior lighting in unincorporated Adams County must be arranged and positioned so no direct light or reflection creates a nuisance or hazard on any adjacent property or right-of-way. Fixtures must shield direct rays from adjoining properties.
Adams County DSR Sec. 4-16-01(1) (Position of Lighting Facility)
Lighting facilities shall be arranged and positioned so no direct light or reflection creates a nuisance or hazard on any adjacent property or right-of-way. Exterior lighting shall be compatible with that of adjacent properties.
2 cities in Adams County have their own outdoor lighting rules. Each link goes to that city's dedicated page with code citations.
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