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Massacre Rim night sky

Dark Skies

Washoe County is updating zoning regulations to improve requirements related to lighting and dark skies, in alignment with the Envision Washoe 2040 master plan. View this webpage for the most up-to-date information.

Dark Skies Survey

Purpose

  • Update the Washoe County Development Code to better protect dark night skies and minimize light pollution in unincorporated Washoe County.
  • Establish lighting standards that balance environmental stewardship, public safety, and responsible development.

Background

Dark sky preservation is a key priority identified in Envision Washoe 2040, the County's master plan adopted in 2023.
Maintaining dark night skies is included as a priority policy in 9 of the 12 Truckee Meadows planning areas:

  • Cold Springs
  • Forest
  • High Desert
  • North Valleys
  • Southeast Truckee Meadows
  • Spanish Springs
  • Sun Valley
  • Verdi
  • Warm Springs

Rural Washoe County is home to some of the darkest night skies in the world, including Massacre Rim, which was designated an International Dark Sky Sanctuary in 2019.

Project Scope

  • Review and update outdoor lighting regulations within the Washoe County Development Code.
  • Develop standards that help minimize light pollution while supporting appropriate residential, commercial, and public lighting.
  • Align development regulations with the goals and policies of Envision Washoe 2040.

Project Area

  • Applies only to unincorporated Washoe County.
  • Does not apply within the cities of Reno or Sparks or on tribal lands.

Expected Outcomes

  • Better protection of natural nighttime environments.
  • Reduced light pollution and skyglow.
  • Development standards that provide clear guidance for future growth and development.

Stay Involved

FAQ's

Timeline

September 9-13, 2026: Citizen Science Mapping Project

Septermber 2026
County staff and community volunteers will conduct a countywide night sky survey to establish a baseline of existing sky darkness and inform future Development Code updates. Participants will learn how to measure night sky conditions as part of this citizen science effort. Kids and families are welcome! Sign up to participate under "Dark Skies Survey" on this page.

September-October 2026: Area Workshops

September - October
County staff will host workshops for areas throughout the County to share the night sky map and discuss potential dark sky regulations. These discussions will inform the subsequent draft of amendments.

October-November 2026: Drafting

October-November
County staff will draft development code amendments to address dark skies.

Dark Skies Survey Areas

Map of Washoe County

Questions/Comments

Call 775.328.6100