Identity-Preserved Systems: A Reference Handbook provides background for the development of processes or systems of maintaining the segregation of and documenting the identity of a product. Growers and other parties that handle, transport, condition, or process the identity-preserved (IP) product must follow strict growing and handling practices, including segregation, inspections, and cleaning of equipment to prevent other varieties from mixing with or contaminating the IP variety. The key to this system is traceability. Each production, processing, and delivery step is documented, so that products can be traced from the store shelf back to the farmers' fields and every stage in between.The need for Identity Preservation (IP) is rapidly becoming of major importance in the world trade of agricultural crops that are enhanced genetically, grown under specific conditions, or have specific characteristics which must be identified and maintained from the seed planted to the delivery of the crop to the end-user. The handbook serves as an authoritative resource that unifies IP efforts, outlines the protocols for IP systems, and includes an operational manual that may be used at any point in the value-chain of the production and marketing effort. This handbook describes an overall identity-preserved (IP) system, which may be utilized in ways that will meet the particular needs of the parties involved in specific trade agreements. It discusses the background of IP systems originating in the seed industry, the basics of a total IP system, and the potential electronic transfer of data and documents. By using the system of identity-preserved verification provided in Identity-Preserved Systems, the seed, specialty crop, and grain and oilseed industries can easily provide products that are identified with a paper trail verifying identity, product quality, and special characteristics.