In biofuels: any organic matter, particularly cellulosic or ligno-cellulosic matter, which is available on a renewable or recurring basis, including trees, crops and associated residues, plant fiber, poultry litter and other animal wastes, industrial wastes, and the biodegradable component of solid waste [Section 3(g), Biofuels Act of 2006; Section 3.1(i), DOE Department Circular No. DC2007-05-0006, Rules and Regulations Implementing Republic Act No. 9367]
