If you wake up past the door time, do not speed. Most centers will not seat a late arrival once testing starts. Go home and change the date if MyACT still allows it.
If you still might make the door
Leave immediately with ID and ticket. Do not stop for food. Start time: start and end time.
The bottom line
Two alarms beat a heroic drive. If the room has started, move the registration—do not argue in the lobby.
Start practicing
Start with a free diagnostic, then drill your weak spots with 15-question quizzes and track how you're doing across Reading, English, and Math. Compare plans whenever you're ready to go further.
This article offers general ACT prep guidance. The ACT can change from year to year, including its format, scoring, policies, test dates, and fees, so always confirm the latest details on the official ACT website at act.org before you make decisions. ACT® is a registered trademark of ACT, Inc. thirty-six is not affiliated with, endorsed by, or sponsored by ACT.