After registration, you can access and take the test immediately, or up to 90 days after purchase to complete your attempts. Once you begin your test, you must complete the test within one session, there is no save/return later option.
Your expiration date is shown within your transcripts. Access will expire at midnight on the date shown. You will not have access on the expiration date shown. (Note: In the example below, this is 12AM between May 27 & May 28.)
While exam access expires after 90 days, your certification will not expire once you have passed the exam.