How to take the current ACMT exam?

A while back I took the 2018 ACMT exam via Pearson Vue using a Tech ID, having first worked through the ATLAS training modules. I did the same thing with the 2019 ACMT exam, also using Pearson Vue. I now have a coworker who is trying to take the 2019 ACMT exam, but after creating his Tech ID and signing in to purchase an Apple Care exam through Pearson Vue, no available exams are listed. Instead he is prompted with a field to enter a private access code for an exam. I’m wondering if anyone can tell me why the 2019 ACMT exam isn’t listed, and whether or not there’s an alternative way for my coworker to become ACMT certified. Thank you in advance!