Rapid population growth in southern Arizona after the mid-20th century motivated astronomers from Kitt Peak and the University of Arizona to lead an effort to establish the world’s first comprehensive outdoor lighting code (OLC) for Tucson and Pima County, adopted in 1973.
Today, Arizona is covered by many state, county and municipal OLCs (see below). OLCs are normally administered by public works or community development departments. These regulations usually start out very simple and then get more detailed with revisions about every 3 or 4 years.
If there is offensive or obtrusive lighting in your neighborhood or nearby business, we recommend you contact the property owner or management and ask if they will correct the problem. If they refuse and you believe they are in violation of a relevant lighting ordinance or code, you can file a complaint with your city or county, many of which have an online form for that purpose.

If at any point you need advice or assistance, or have a specific question or concern about light pollution in your area, we are here to help.
Current Codes & Policies
- State of Arizona (2012)
- City of Tucson, Pima County and South Tucson (2012, shared code)
- Town of Oro Valley (2024)
- Marana (2008)
- Town of Sahuarita (2012)
- Pinal County (2010 SaddleBrooke, Oracle, Casa Grande, Florence, etc.)
- Cochise County (2005 Sierra Vista, Hereford, Bisbee, Douglas, etc.)
- City of Bisbee (2024)
- Santa Cruz County (2024)
Code Related Items
- DarkSky Model Lighting Ordinance and other material regarding Outdoor Lighting Codes
- Light Fixture Examples of Unacceptable and Acceptable
- Lamp Lumens and Watts Equivalencies by Fixture Type
HOAs and CC&Rs
