Our Work

Public Policy

Shielding for public policy
Public policy cartoon
Light trespass is a public policy problem.

Light trespass can be a serious problem for residents.

Lighting Policy Annotated Bibliography

This document gives Colorado advocates a reference to the scholarly articles important to discussions with local governments. 

Comparison of Outdoor Lighting Ordinances

Model Lighting Ordinance

The International Dark-sky Association and the Illuminating Engineering Society have jointly created a “Model Lighting Ordinance.”

Join the International Dark-sky Association

IDA members with a Colorado mailing address are automatically part of the Colorado chapter. 

Colorado chapter members get a monthly newsletter and other benefits.