This is incorrect. He cannot call himself a PE for the purposes of acquiring clients (that's fraud), but he's perfectly free to call himself an engineer otherwi

This is incorrect. He cannot call himself a PE for the purposes of acquiring clients (that's fraud), but he's perfectly free to call himself an engineer otherwise, per the actual ruling and not a press release by a biased party. You are correct that the ruling partially constrains itself to traffic lights, but that is because that's all Jarlstrom asked for, and this was a preliminary injunction, it didn't even go to trial! That said, the ruling also makes clear that the Oregon engineering title laws (as opposed to engineering practice laws) "violate the first amendment on their face". And if those statutes are unconstitutional, there's no law for Jarlstrom to violate. And as such, it states " Plaintiff Järlström may describe himself publicly and privately using the word “engineer." And that Oregon cannot enforce any of the professional engineering registration act against him for doing so. And Oregon is one of only a few states with such a law, so in most of the US there isn't even a law to strike down, it's just clearly legal.