Process unit
Process unit means equipment assembled and connected by pipes or ducts to produce, as intermediates or final products, one or more of the chemicals in 60.707. A process unit can operate independently if supplied with sufficient feed or raw materials and sufficient product storage facilities.
Source
40 CFR § 60.701
Scoping language
As used in this subpart, all terms not defined here shall have the meaning given them in the Act and in subpart A of part 60, and the following terms shall have the specific meanings given them.