Johns Hopkins University Applied Physics Laboratory
11101 Johns Hopkins Road. Building 200 (New Location)
Laurel, Maryland 20723
Visitors must present photo identification to the lobby receptionists, sign the visitor register, receive the appropriate badge, and remain under escort unless otherwise authorized by Visitor Control. Passports are required for foreign visitors, and permanent residents must present their Permanent Resident Card (green card) for entry to the Laboratory. Questions regarding the status of a visitor’s access to the Laboratory should be directed to Visitor Control (phone: 240-228-5661; fax: 240-228-6400). Visitors attending a meeting should have their visit request faxed to Visitor Control or sent via SMO code 888984.
South Campus (Buildings 200 and 201): From Johns Hopkins Road, turn left onto APL Drive.
The following airports are within driving distance of the APL main campus.
- 25 minutes Information: 410-859-7111 or 800-435-9294,
- 1 hour Information: 703-572-2700,
- 1 hour Information: 703-417-8000,
Taking public transportation? Visit the sites below to find the most convenient AMTRAK, MARC, and Metrorail routes.
Information: 410-539-5000 APL is closest to the Laurel MARC station on the Camden Line.
Information: 202-637-7000