Kaiser, in the SF Bay Area has it's PrEP patients on the honor system; we're expected to have tests run every 3 months, and we get a 3 months prescription in the mail; but there's no enforcement of having had the tests immediately prior to the refill. In San Francisco, *one* (1) nurse-practitioner was responsible for following up 3,000 patients, when I started. It's a good idea, and I think most people do it.