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criteria pollutants Croatia crop crop insurance cropland croton crowdfunding crude oil Cuba cup plant cuphea currency/foreign exchange policy curriculum cusi cutworm caterpillars cyanobacteria (blue-green algae) cylindro Cyprus Czech Republic d D-3 (cellulosic) RINs D-4 (bio-based diesel) RINs d-5 D-5 (advanced biofuel) RINs D-6 (renewable fuel) RINs D-7 RINs (Cellulosic Diesel) D-8 (proposed) RINs D20 (20%DME) D5 (5%DME) dairy waste dandelion DARPA date kernel oil date palm date palm pits date palm waste Dates DDGS (distiller’s dried grains with solubles) dead zone decanol decision-support tool deep water drilling Defense Logistics Agency (DLA) Defense Production Act deficit definitions deforestation defossilization Dehydration Delaware DeltaWing demonstration demonstration scale/unit Denmark densify density Department of Agriculture (USDA) Department of Commerce Department of Defense (DOD) Department of Education Department of Energy (DOE) Department of Health and Human Services 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