We also have state-wide anti-light pollution regulations on the books[1]; unfortunately, enforcement is spotty and depends on the community.
Where I live (southern NM) we've had a steady influx of people from out of state, and the first thing they tend to do is install outdoor security lighting that is in clear violation of the NSPA. All that to say that I have noticed that some of the newcomers who were in violation may have been reported since their fixtures are now turned off after 11pm. So, enforcement does happen; it just takes time. Thankfully, we have a few astronomers in the community!
(The one deficiency in the NSPA is that it defines fixtures based on wattage rather than lumens. There have been efforts to change this language, but they've stalled.)
Where I live (southern NM) we've had a steady influx of people from out of state, and the first thing they tend to do is install outdoor security lighting that is in clear violation of the NSPA. All that to say that I have noticed that some of the newcomers who were in violation may have been reported since their fixtures are now turned off after 11pm. So, enforcement does happen; it just takes time. Thankfully, we have a few astronomers in the community!
(The one deficiency in the NSPA is that it defines fixtures based on wattage rather than lumens. There have been efforts to change this language, but they've stalled.)
[1] http://www.darkskynm.org/lightinglaws.html