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 collect or transport gas or vapor from an emission point to a control device.

Source

40 CFR § 63.12005

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Scoping language

Terms used in this subpart are defined in the Clean Air Act, in 63.2, and in this section, as follows:

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