You'll get some important emails from your instructor at this address.
A Program ID looks something like this: XL77-AB12-381Z-XL12
Access code or credit card
Your school may have provided you with a MyReadinessTest student access code for you to use to register. If not, you may buy an access code packaged with a textbook or as a standalone access code kit. Or you can buy instant access with a major credit card or PayPal account.