Staff Sgt. Shaun Ouellette, 11th Civil Engineer Squadron readiness and emergency manager, uses a ratchet strap to seal a crack in a plastic barrel during hazardous material training on Joint Base Andrews, Md., Sept. 29, 2016. 11th CES performs hazmat training in order to be prepared to take action if a HAZMAT disaster arises. (U.S. Air Force photo by Airman 1st Class Valentina Lopez)