Closed-vent system

Closed-vent system means a system that is not open to the atmosphere and is composed of piping, ductwork, connections, and, if necessary, flow-inducing devices that transport gas or vapor from an emission point to a control device.

Source

40 CFR § 63.441

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Scoping language

All terms used in this subpart shall have the meaning given them in the CAA, in subpart A of this part, and in this section as follows:

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