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User Administration

Postal Address

User Administration Office
Brookhaven National Laboratory
75 Brookhaven Avenue, Bldg. 725B
Upton, NY 11973-5000

Office Hours

Monday through Friday, 8:00 a.m. - 4:30 p.m.

Check In

All new and returning users must personally check in at Brookhaven National Laboratory’s Guests, Users, and Visitors (GUV) Center. The GUV Center is located on the first floor in Bldg. 400, on Brookhaven Avenue diagonally across from Berkner Hall.

Phone Number


Fax Number


Email Address
Email is retrieved daily Monday through Friday. Responses to requests or information are made the same or next day.

Communications Office

Email a question or comment to the Photon Sciences Directorate.

Postal Address

Photon Sciences Directorate
Brookhaven National Laboratory
Building 745
P.O. Box 5000
Upton, NY 11973-5000