Effective March 30, 2015 ORNL became fully compliant with the REAL ID Act. This Act requires that anyone accessing a Federal Facility, which ORNL is, must present a compliant form of identification. If you are from one of the noncompliant states, you will need to provide another form of approved identification. Here is a list of acceptable identification if you are from one of these states. If you are from a non-compliant state and you do not have another form of compliant identification, ORNL will allow you to access the site, but you will be required to be escorted during your visit.
For more information on REAL ID or acceptable forms of identification, please see http://www.dhs.gov/real-id-enforcement-brief and/or http://www.tsa.gov/traveler-information/acceptable-ids.