United States (U.S.) deadlines apply to students testing in the U.S., U.S. territories and U.S. commonwealths. U.S. registration materials that are mailed must be postmarked by the U.S. deadlines. If you are testing in the U.S., U.S. territories or U.S. commonwealths, and you miss the registration deadline, you still have time to submit a registration, but you must pay a late fee. Note that late registrations made by mail have a different deadline from those made by phone or online.