Last year, I wrote about two cases in Oregon and Mississippi where individuals sued regulatory agencies that were attempting to stop the individuals from calling themselves an "Engineer". The individuals won on Free Speech grounds.
On December 5, 2019, Greg Mills sued the Arizona Board of Technical Registration because they attempted to fine him and stop him from working (see Complaint).
I expect the Board to litigate aggressively, but that its action will be found to violate the First Amendment.
Image by Alexander Dummer from Pexels.