Army Star

Aberdeen Proving Ground Army Base

20th Chemical, Biological, Radiological, Nuclear, Explosives Command, 203rd Military Intelligence Battalion, Chemical Materials Activity, Communications-Electronics Command Life Cycle Management Center, Contracting Command, Medical Research Institute of Chemical Defense, Public Health Command, Research, Development, and Engineering Command, Test and Evaluation Command
2201 Aberdeen Boulevard, Aberdeen Proving Ground, MD 21005

Aberdeen Proving Ground

Aberdeen Proving Ground (APG) is a United States Army facility located near Aberdeen, Maryland in Harford County.  The installation spans across  72,500 acres, more than half of which is water or wetlands. There are more than 6,800 acres of improved grounds, nearly 300 miles of road, and more than 567,000 square yards of airfield pavement. The installation lies on two peninsulas separated by the Bush River.


APG is recognized as one of the world’s most important research, development, testing, and evaluation facilities for military weapons and equipment.  It also supports the finest teams of military and civilian scientists, research engineers, technicians and administrators. It is the Defense Department’s Center for Excellence for land combat systems, vehicles, Soldier systems and chemical and biological defense.


Test and support facilities allow instrumented firing of weapons on a variety of state-of-the-art ranges, testing of tanks and other tracked vehicles over specifically engineered courses, and a wide variety of laboratory-type investigations. Newly designed weapons and other combat material are put through the most grueling field and laboratory workouts conceivable.

Arriving at Aberdeen Proving Ground

The closest airport is Baltimore/Washington International Thurgood Marshall Airport located 45.3 miles from base.


Directions from Baltimore Washington International Thurgood Marshal Airport:

  • Take I-95 West
  • Take the MD-295/Baltimore Washington Parkway north exit, exit # 2A towards I-695/Baltimore
  • Merge onto MD-295 north
  • Take the I-895/Harbor Tunnel Thruway exit
  • Merge onto Harbor Tunnel Thruway
  • Harbor Tunnel Thruway becomes I-95 north (Portions toll)
  • Take MD-543 exit, exit #80, to Riverside/Churchville-Keep right
  • Merge onto MD-543 S
  • Turn right onto MD-40 to the main gate of Aberdeen Proving Ground
  • Take MD-715 to the Visitor’s Center at the main gate of Aberdeen Proving Ground

Soldiers arriving  by air will have to arrange for their own transportation from Baltimore Washington International (BWI) or DULLES International. Taxis and rental cars are available but expensive.  Amtrak offers train service from BWI to the City of Aberdeen.


Aberdeen Proving Ground is a closed post and anyone entering the installation will need proper identification. There is a 100% vehicle check upon entering Aberdeen Proving Ground. Anyone without vehicle identification or proper military identification cards will be denied access to the installation. First time visitors should report to the Visitors Control Center at the 715 Gate located at the Route 40 entrance. A military identification card or military sponsorship is required. In addition, a valid driver’s license, vehicle registration, and proof of insurance are required at time of sign-in.


Soldiers must bring five copies of their orders, their 201 File, and their original and DA Form 31, Request and Authority for Leave Form to sign-in.

Medical and dental records, finance receipts and paperwork, as well as proper military uniform are required to complete in-processing.

Base Population

There are 40,803 Active Duty, Guard, Reserve, military family members, civilians, and retirees assigned to Aberdeen Proving Ground.