M50 gas mask affixed to SMARTMAN (Simulant Agent Resistance Test Mannikin) in small chamber, prior to challenging mask with Joint General Purpose Decontaminant for Hardened Military Equipment (JGPD HME). The test was conducted to learn whether the relatively new decontaminant would degrade the mask.
Photo taken Nov. 5, 2019 by Al Vogel, Dugway Proving Ground Public Affairs.

DUGWAY PROVING GROUND, Utah - Established in 1942, Dugway Proving Ground (DPG) is the U.S. Army's center of excellence for chemical and biological defense testing. Dugway does not develop or test chemical or biological weapons. Dugway is the Army's premier science and test facility in Utah's West Desert and it tests things like gas masks, gloves, protective suits, and decontamination methods.

DPG is responsible for testing and evaluating nearly all Department of Defense (DoD) chemical and biological defense equipment and capabilities. Within its nearly 800,000 acres, there are numerous state-of-the-art laboratories, unique test chambers and extensive field test grids. For more than 80 years, DPG has empowered our nation's defenders against persistent and evolving threats.

In 1969, President Richard Nixon ended all offensive chemical and biological weapons with executive orders and national security directives. In 1975, the U.S. ratified both the 1925 Geneva Protocol and the 1972 Biological Weapons Convention (BWC)—international treaties outlawing biological and chemical warfare.