Comment by mvexel

The data from the International Dark-Sky Association[0] would be a good complement to this.

In case you're interested what a dark sky town ordinance looks like for a small town that has the designation near where I live, see here[1].

[0] https://www.darksky.org/our-work/conservation/idsp/finder/ [1] https://codelibrary.amlegal.com/codes/torreyut/latest/torrey...