General Lab Information

Emergency, from any Lab phone: 911 or Ext. 2222  |  From a cell phone or off-site phone: (631) 344-2222
Non-emergency Police: Ext. 2238 | Non-emergency Fire: Ext. 2350

Hours of Operation

Division Administration Hours

Monday – Friday, 8:30 a.m. to 5 p.m.

The Main Entrance of the Laboratory is open 24 hours a day, seven days a week. A police officer is always present to screen vehicles and personnel entering and exiting the Laboratory.

Main Gate Booth (Bldg. 680)

Open at all times except from 9:30 a.m. to 3 p.m. during normal working days (Monday through Friday).

Information Booth (Bldg. 680A)

Open from 6:30 a.m. to 3 p.m. (Monday through Friday) during normal working days. CLOSED during all other times.

Main Gate Visitors Info. Center

Open from 7 a.m. to 3:30 p.m. during normal working days. During all other times, the Main Gate and/or Information Booth will process visitors to the Laboratory.

Badging Office (Bldg. 400A)

Open from 7:30 a.m. to 4 p.m. (Monday through Friday) during normal working days. CLOSED during all other times.

North Gate

The North Gate is open for incoming traffic, Monday through Friday, from 7:30 to 9 a.m., and for outgoing traffic from 4:30 to 5:30 p.m. The gate is closed all other times, unless opened at the direction of a Watch Commander (WC).

South Gate

The South Gate is open for outgoing traffic, Monday through Friday, from 4:30 to 5:30 p.m. only. The gate is closed at all other times, unless opened at the direction of a WC.

Note: The opening and closing times of the booths may change due to operational needs.