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, planter equipment clean-out has become a production, marketing, and regulatory imperative. New federal regulations by United States Department of Agriculture agencies under Marketing and Regulatory Programs, in the areas of certified organic production, plant protection and quarantine, and biotechnology require that planting equipment be cleaned of seed and biomaterial before use, interstate transport, or return-to-service in a growing number of cases.