Defense transportation, DOD needs to take actions to improve the transportation of hazardous material shipments

" Over 3 billion tons of HAZMAT are transported by commercial carriers in the United States each year. DOD accounted for about 1.6 million HAZMAT shipments in fiscal year 2013, using commercial and military carriers. These shipments can be high risk and highly sensitive and if improperly handled, labeled, or packaged could result in the loss of life, property damage, and harm to national security interests. The National Defense Authorization Act for Fiscal Year 2013 mandates GAO to review DOD's guidance, policies, and procedures regarding HAZMAT shipments. GAO examined the (1) statutes, regulations, guidance, policies, and procedures that govern DOD's handling, labeling, and packaging of HAZMAT shipments to support military operations and (2) extent to which DOD faces any challenges in implementing its policies and procedures for transporting HAZMAT in a safe, timely, and cost-effective manner. GAO examined DOD's and DOT's regulations and related DOD documentation for the transport of HAZMAT and found the 2009-13 data it examined sufficiently reliable for the purposes of the review. "