Local rules only

Colorado

Last checked 2026-09-23

Colorado law requires state-funded outdoor lighting projects to consider energy conservation, glare, and light pollution, and a 2022 program (HB22-1382) funds grants to help communities pursue International Dark Sky designation. There is no general statewide restriction on private or municipal lighting; that is left to local ordinances.

Municipal codes

  • Westcliffe and Silver Cliff, CO: Colorado's first International Dark Sky Community (2015), with a joint outdoor lighting ordinance.
  • Ridgway, CO: Adopted a dark-sky-friendly outdoor lighting ordinance ahead of its Dark Sky Community designation.