designation within any other International Dark Sky Places category". Fry Family Park, Ohio, U.S., designated 2021 Palos Preserves, Illinois, U.S., designated 2021 Stacy Park, Missouri, U.S., designated 2021 Timpanogos Cave National Monument, Utah, U.S., designated 2020 Valle de Oro National Wildlife Refuge, New Mexico, U.S., designated 2019 Fixture Seal of Approval To promote the use of responsible outdoor lighting that minimizes light pollution, the IDA offers a Fixture Seal of Approval program. The program provides objective, third-party certification for lighting products that minimize glare, reduce light trespass, and do not pollute the night sky. See also Bortle Dark-Sky Scale Commission for Dark Skies CieloBuio, an Italian coordination for the protection of the night sky Dark-sky movement Dark-sky preserve Light pollution List of astronomical societies Sky brightness References External links Darksky.org: official International Dark-Sky Association website Darksky.org: Dark Sky Observing Sites & Destinations (archived 6 July 2010) + Astronomy organizations Environmental organizations based in Arizona Environmental organizations established in 1988 Scientific organizations established in 1988 Event management companies