Light trespass can be a serious problem for residents.
Model Lighting Ordinance
The International Dark-sky Association and the Illuminating Engineering Society have jointly created a “Model Lighting Ordinance.”
Lighting Policy Annotated Bibliography
This document gives Colorado advocates a reference to the scholarly articles important to discussions with local governments.
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.