How Does Colorado’s Outdoor Lighting Law Protect the Nocturnal Environment?
Colorado’s C.R.S. § 24-82-902 sets a hard line at 3,200 lumens — every new state-funded fixture above that threshold must aim every photon downward. Boulder pushed further, capping residential lights at 900 lumens and 3,000 K. The night sky has infrastructure lawyers now. Colorado’s C.R.S. § 24-82-902, effective July 1, 2002, requires any new outdoor … Read more