In toxic substances, nuclear wastes: the preparation of a chemical substance or mixture after its manufacture for commercial distribution: i) In the same form or physical state or in a different form or physical state from that which it was received by the person so preparing such substance or mixture; or ii) As part of an article containing a chemical substance or mixture [Section 5(c), Toxic Substances and Hazardous and Nuclear Wastes Control Act of 1990]
