Baltimore-Washington Parkway - United States Park Police (U.S. National Park Service)

For Emergencies, please call the U.S. Park Police dispatch at 202-619-7105

The dedicated force of the United States Park Police patrol the Baltimore-Washington Parkway.

There are no commercial vehicles allowed on the parkway.
Please see the Code of Federal Regulations 36 CFR

Vehicles allowed on the parkway are people movers such as buses, taxis, limousines, and mini-buses.

Please remember to obey all posted speed limits.

Note that the speed limit changes from 55 mph to 45 mph from Route 450 Annapolis Road to the Washington, D.C. boundary.
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a picture of the U.S. Park Police building located at the entrance of Greenbelt Park.

U.S. Park Police building located at 6501 Greenbelt Road at the entrance of Greenbelt Park.

The United States Park Police is a unique organization within the National Park Service.

It is the oldest NPS component, predating its adoptive parent by half a century (or more, some would argue).
Its personnel wear distinctive uniforms, perform specialized functions, and are regularly assigned to a small minority of national parklands.