Electronic Proving Ground

Electronic Proving Ground (EPG) is the Army’s Command, Control, Communications, Computers, Cyber and Intelligence (C5I) Developmental Tester.


Electronic Proving Ground is headquartered on Fort Huachuca, in Southeastern Arizona. They have field offices on Fort Hood, TX and Fort Lewis, WA. EPG is unique within the DOD because of its naturally quiet electromagnetic environment, its unique specialized facilities, its close relationship with the Army training community, and its ability to use the expansive real-estate of southern Arizona. Operations are routinely possible on 70,000 acres at Ft. Huachuca, 23,000 acres on Wilcox Dry Lake, more than 100,000 acres at Gila Bend, and with prior coordination, on approximately 62 million acres of federal and state owned land.


The Electronic Proving Ground reopened Fort Huachuca doors on 1 February 1954 when the Chief Signal Officer decided that the area and climate were ideal for testing electronic and communications equipment. The name was derived from the mission – to test, prove, explore, and evaluate systems and devices utilizing the electron – a simple descriptive name embracing its primary function as the Army’s proving ground for testing and evaluating communications-electronics equipment and systems.

The small group of military and civilian pioneers found a very sparse population, austere facilities, and abundant wildlife, including buffalo grazing on the gunnery range. The mission grew and EPG remained the host activity until 1967 when the U.S. Army Strategic Communications Command, relocated its headquarters to Fort Huachuca.


“Plan, conduct, analyze, evaluate and report the results of developmental tests, operational tests, and evaluations in support of our Network, Electronic Warfare and C5ISR customers.”

Temporary Quarters

Fort Huachuca Billeting (520) 533-2222 OR DSN 821-2222

Contact Information

U.S. Army Electronic Proving Ground
2000 Arizona Street Fort Huachuca, AZ 85613-7063

EPG Instrumentation Help Desk
Comm: (520) 538-5602 (DSN 879)