As in most of the US that have them barring California, which is Universal and why the BAR and OEMS has a 49 +1 system specifically for California, hence why the Prius was made for the California market yet suffering the most from this is ironic.

This what I found on emission on TX by county [0], and it looks a lot like Organ in that most don't do it except major metro areas.

0: https://www.emissions.org/loc/texas-emissions-testing/#count...