(under subclass 550) Subject matter in which the starting material is derived from a plant or a material which would ordinarily be thrown away if it were not salvaged for its fuel value.
(1) Note. "Refuse" includes the ordinarily waste product is of combustion or fuel processing, e.g., cinders, fly-ash, soot, coal fines, etc., as well as municipal waste, industrial waste, sewage products, etc.
SEE OR SEARCH CLASS
428, Stock Material or Miscellaneous Articles,
2, for a compacted trash or refuse bundle not intended primarily for use as a fuel.