Note: A chemical substance that is manufactured as part of a mixture is subject to these reporting regulations. This exclusion applies only to the mixture and not to the chemical substances of which the mixture is comprised. The term "mixture" includes alloys, inorganic glasses, ceramics, frits, and cements, including Portland cement.
Note: In addition, chemical substances excluded here will not be subject to premanufacture notification under section 5 of the Act.
Note: A byproduct which has commercial value only to municipal or private organizations who (i) burn it as a fuel, (ii) dispose of it as a waste, including in a landfill or for enriching soil, or (iii) extract component chemical substances which have commercial value, may be reported for the inventory, but will not be subject to premanufacture notification under section 5 of the Act if not included.
40 C.F.R. §710.4
See note to definition of "intermediate" at § 710.3(d) for explanation of "equipment in which it was manufactured."