Dark Sky Ordinance

Balancing Conservation & Astronomy


The Maricopa County Dark Sky Ordinance includes provisions designed to control the use of outdoor artificial illuminating devices emitting rays into the night sky which have a detrimental effect on astronomical observations. It is the intention of this Ordinance to encourage good lighting practices such that lighting systems are designed to conserve energy and money, while increasing nighttime safety, utility, security and productivity.

The Maricopa County Dark Sky Ordinance has been incorporated into the Zoning Ordinance - Section 1112 (PDF).