This document lists 428 code descriptions for different types of scheduled wastes under 5 main categories: metals and metal-bearing wastes, wastes containing principally inorganic constituents, wastes containing principally organic constituents, wastes which may contain either inorganic or organic constituents, and other wastes. The codes describe various hazardous industrial wastes including metal sludges and dust, spent acids, oil sludges, spent solvents, pesticide wastes, and other chemical wastes.