Hey, so the exam is usually available throughout the whole year, with some exceptions of course. But to find a specific date, not sure where you are in the process but basically you need to apply to take the OAT and then with the ID # you get, you have to pay the fee and I believe only then will they allow you to pick & see what dates are available. I know, it's kind of annoying but as long as you know around what date you want to take it - it should be available!