U.S. Air Force Staff Sgt. Daniel Rivera, 1st Maintenance Group maintenance training instructor, demonstrates the proper procedures for hot pit refueling for Airmen in a training class at Joint Base Langley-Eustis, Va., Sept. 13, 2016. The maintenance training section offers 26 courses, ranging from job specific to Air Force requirements such as Self Aid and Buddy Care. (U.S. Air Force photo by Staff Sgt. Teresa J. Cleveland)