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With the introduction of value-added traits, identity preservation programs,
Federal organic standards, and the advent of field testing of federally
regulated genetically modified plants, harvest equipment clean-out has
become a production, marketing, and regulatory imperative. New federal
regulations by United States Department of Agriculture (USDA) agencies
under Marketing and Regulatory Programs, in the areas of certified organic
production, plant protection and quarantine, and biotechnology require
that harvesting equipment be cleaned of seed and biomaterial before use,
interstate transport, or return-to-service in a growing number of cases.
Animal and Plant Health Inspection Service
Iowa State University Extension and Outreach
Agricultural and Biosystems Engineering, Crops, Equipment and Machinery
Agricultural Education | Bioresource and Agricultural Engineering
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Hanna, H. Mark and Jarboe, Darren H., "Animal and Plant Health Inspection Service: Harvest Equipment Inspection Training Manual" (2010). Agriculture and Environment Extension Publications. 116.