Any renewable, organic resource that can be used directly as a fuel or converted to another type of fuel or energy product is referred to as a feedstock. The biorefinery system relies heavily on feedstock. A good/ideal feedstock for biorefinery should be non-food for humans/animals and deliver a greater product yield with a large market. The Feedstock Technologies initiative explores science-based strategies and technologies to lower the cost, enhance the quality, and increase the quantity of carbon-based feedstocks that are sustainable, renewable, and reusable. Each R&D area is made up of initiatives that help increase the efficiency and consistency of feedstocks for biofuels, bioproducts, and bioenergy conversion. Germplasm selection, molecular breeding, and genetic modification of appropriate feedstock for biofuel production are all part of bioenergy feedstock development.