It was fantastic in my last job search. Even recruiters that tried to "not talk numbers" until the end of the process I could just point to the relevant laws or just not continue on in the process. Plenty of companies were playing by the rules so no need to waste my time.
This is the complaint form if you find an employer not following the law:
https://cdle.colorado.gov/sites/cdle/files/Equal%20Pay%20Com... orm%20Dec%202020_Distributed.pdf
Fact sheet:
https://cdle.colorado.gov/sites/cdle/files/documents/Equal_P...
Actual Law:
https://cdle.colorado.gov/sites/cdle/files/7%20CCR%201103-13...
Other links:
So you can see what new people coming in are getting for what roles, and know if you're in the right range.