ASTM D3951, Standard Specifications for Commercial Encasement, specifies requirements for Encasement, Marking, and Storage of Goods and Equipment. The standard is designed to ensure that during multiple handling and shipments, Encasement can provide adequate protection to ensure that products are stored in a closed facility for at least one year without degradation or damage. It applies to a wide range of Department of Defense shipments, including items for immediate use, supplies that cannot perform their mission, warehouse-operated items, and small parcel shipments that are not in stock. The standard does not apply to ammunition, explosives, or hazardous materials. Its requirements include physical and mechanical protection of Encasement, ensuring that products remain effectively protected beyond the one-year storage period.