biomass
(2) (A) The term “biomass” means any organic matter which is available on a renewable basis, including agricultural crops and agricultural wastes and residues, wood and wood wastes and residues, animal wastes, municipal wastes, and aquatic plants. (B) For purposes of subchapter I, such term does not include municipal wastes; and for purposes of subchapter III, such term does not include aquatic plants and municipal wastes.