dunnagemeans wood of any kind used to wedge or support parts of cargo and includes packing material, spacers and pallets, except that dunnage originating in Canada, China, Japan and the United States of America shall not include wood packing material;”
wood packing materialmeans non-manufactured wood of conifers (Coniferales), except that of Thuja L., which is in the form of packing cases, boxes, crates, drums and similar packings, pallets, box pallets and other load boards and pallet collars, whether or not in use in the transport of objects, and, in reference to wood used in the construction of wood packing material, “non-manufactured” shall refer to wood which has not undergone a manufacturing process involving glue or a combination of heat and pressure.”