This regulation prescribes policies and procedures for reporting malfunctions of ammunition and explosives and for conducting subsequent Department of the Army investigations. This regulation covers standard items when used with developmental or experimental ammunition (for example, a charge used to propel experimental projectiles); when issued for comparison purposes during research, developmental, or test phases of new items; when used for seating, warming, spotting, or other purposes during testing; and when being evaluated for lot acceptance purposes or for specific item contracts (guided missiles and large rockets only). This regulation covers nonstandard items to include Deputy Chief of Staff, G–3/5/7 approved nonstandard munitions and foreign manufactured munitions used by U.S. Forces.