Anyway, this weekend I saw license plates from 41 distinct issuing authorities; that is not counting the number of different plates I saw per issuer — Florida seems to have dozens of different ones, and lots of other states do too. Maybe I should start counting those separately, but so far I haven't. My issuer count included: 37 states, 2 provinces, 1 district, and 1 department. Yes, that was a new one on me: DIPLOMAT plates, issued by the State Department. Here's a map of the 13 states whose plates I did not see this weekend, on the streets of Brooklyn NY:
Of those, I have seen Louisiana, New Mexico, Utah, and Wyoming in the past month, leaving only 8 that I have not seen since I resumed looking.