Before going to a DMV office and taking DMV tests, you need to make sure that you have all the necessary items. In fact, the checklist what to bring to dmv for permit test over 18 varies slightly from state to state and the requirements is published on DMV website and differ depending on several factors:
Identification card (including military card)
Birth certificate (including certificate/report of birth abroad)
Certificate of naturalization/citizenship
Social security card (non-laminated)
Wage and Tax Statement/1099 tax form
Your payroll sheet
It is important that the papers must be presented in the originals or in the certified copies authenticated with the seal in some state. Check it carefully before you go to the DMV office.