For purposes of this chapter—
(A) The term “source reduction” means any practice which—
reduces the hazards to public health and the environment associated with the release of such substances, pollutants, or contaminants.
The term includes equipment or technology modifications, process or procedure modifications, reformulation or redesign of products, substitution of raw materials, and improvements in housekeeping, maintenance, training, or inventory control.
The term “source reduction” does not include any practice which alters the physical, chemical, or biological characteristics or the volume of a hazardous substance, pollutant, or contaminant through a process or activity which itself is not integral to and necessary for the production of a product or the providing of a service.
The term “SIC codes” refers to the 2-digit code numbers used for classification of economic activity in the Standard Industrial Classification Manual.