The IPPC, or International Plant Protection Convention, is a globally ratified treaty that aims to reduce the spread of diseases and pests that threaten plants.  Member nations have worked to produce the International Standards for Phytosanitary Measures 15 (ISPM 15) for the purpose of protecting the health of the world’s forests by restricting the inadvertent transportation of forest pests in wood used for packaging and dunnage in international shipments.  According to ISPM 15 standards, wood packaging materials requires solid wood to be debarked and treated with heat, or fumigated, and marked with a seal of compliance.  Pallets, boxes and crates made entirely with engineered wood products (including plywood) are exempt from the ISPM 15 regulations.  This is because the process of manufacturing plywood/engineered wood products destroys any live organisms in the wood. Accordingly, we do not mark our panels or packages with the IPPC mark.  However, the solid wood (lumber) dunnage that we use for packaging our panels has indeed been treated in accordance with the Canadian Heat-Treated Wood Products Certification Program to meet the ISPM 15 requirements.