Two years ago, I had an opportunity to get Ace micro-chipped at the college. I also had to pay for a license, which is more about counting horses than anything else. I'm glad I got the micro-chip, although I've read some scary things about them. Ace seems to be doing just fine with it. Since horses don't have collars on all the time (unlike dogs), I haven't quite figured out what to do with the license tag. If I were Ace, I'd hate to have it banging against my cheek if I put it on his halter.
The other day, Gina asked me if Ace was licensed, because they need to have all of the horses licensed in order to get a conditional use permit for the barn. I managed to dig up my license, which expired, and now I've got to drop by the Department of Animal Services to renew the license. I noticed the paperwork has the wrong address and it uses Ace's call name rather than his registered name. That's probably not as important.
The City of Los Angeles recently claimed some sort of ignorance about how many horses are in the San Fernando Valley, saying there were less than 500. That was based on license sales. Lots of horse owners gathered to let the City know they were quite wrong about that, but there is now a push to get the horses licensed.