All visits should be prearranged with the person or persons you will be meeting with.
Security clearances can be faxed to NRL's Security Office at 202-767-3990, or mailed to:

Naval Research Laboratory
Attn: Security / Visitor Control
4555 Overlook Ave., S.W.
Washington, DC 20375-5337

To verify that clearances have been received, call 202-767-2996 or 202-767-6924.

Upon arrival, unbadged visitors must report to NRL Visitor Control in Building 72, adjacent to the main gate.

For more information, including directions and maps, refer to the visitor information page on NRL's main web site.