International Dark Sky Reserves

An IDA International Dark Sky Reserve is a public or private land possessing an exceptional or distinguished quality of starry nights and nocturnal environment that is specifically protected for its scientific, natural, educational, cultural, heritage and/or public enjoyment. Reserves consist of a core area meeting minimum criteria for sky quality and natural darkness, and a peripheral area that supports dark sky preservation in the core. Reserves are formed through a partnership of multiple land managers who have recognized the value of the natural nighttime environment through regulations and long-term planning.

If you are interested in applying or learning more about how to become an International Dark Sky Reserve, click here:

Request Information

Certified IDA International Dark Sky Reserves

2018 Submission Deadline Dates

2019 Submission Deadline Dates

Download the current International Dark Sky Reserve guidelines

NOTE: IDA published a major revision of the IDSR guidelines on 1 June 2018. New nominations initiated between 1 June and 1 December 2018 may, at the discretion of the initiator, follow either the existing (2015) or new (2018) guidelines version. All nominations initiated after 1 December 2018 MUST use the 2018 version.

2018 IDSR Guidelines
2015 IDSR Guidelines

Resources for applicants

For current International Dark Sky Reserves

Writing Dark Sky Reserve Annual Reports