Applied Physics Laboratory

The Laboratory is a secure facility, operating under Department of Defense regulations for restricted entry. All visits to the Laboratory must be preapproved via written request and notification by responsible staff members. Staff members hosting visitors are responsible for ensuring that all security requirements are met.

Entry/ID Requirements: 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 resident aliens must present their Resident Alien 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 or 443-778-5661; Fax: 240-228-6400 or 443-778-6400).

Restricted/Controlled Items: Visitors should be aware of APL rules for bringing restricted and controlled items, such as electronic devices, on site.

Johns Hopkins University Applied Physics Laboratory
11100 Johns Hopkins Road
Laurel MD 20723-6099
Baltimore (443)-778-5000
Washington (240)-228-5000

Follow this link to the APL Visitor Guide.

The mission of The Johns Hopkins University is to educate its students and cultivate their capacity for life-long learning, to foster independent and original research, and to bring the benefits of discovery to the world.