Can you become a CVT/LVT/RVT without going through school?

I know this used to be an option, that if you had enough hands-on experience you could just cram for the exam and not have to do the schooling. A coworker of mine recently mentioned that if you do it specifically through the state of Wisconsin there is a loophole? Has anyone else done this? I’ve been in the field for over 4 years and really dragging my feet in school because I also work full time. TIA!

EDIT TO ADD: I live in Arizona, my coworker mentioned I’d have to be licensed in Wisconsin for a year and then I could take the AZ state exam and be certified here. Does that sound accurate?