Make sure you reach your test center early on the test date. Your center will have a locker where you can keep your belongings. You will not be allowed to take anything inside the test except for the ID. Your ID must have the following:
Your ID has to be original, photo copied documents are not accepted.
Your ID cannot be expired, make sure you check the date properly.
Your ID should mention your full name exactly the way it is in your registration form.
The ID needs to have a photograph that matches your face in current time.
Your ID will need to have your signature.
For more information on ID requirements, you can choose to check this link:
https://www.ets.org/toefl/ibt/register/id