Conveyance
Conveyance means the system of equipment that is designed to capture pollutants at the source, convey them through ductwork, and exhaust them using forced ventilation. A conveyance may, but does not necessarily include, control equipment designed to reduce emissions of the pollutants. Emissions that are released through windows, vents, or other general building ventilation or exhaust systems are not considered to be discharged through a conveyance.
Source
40 CFR § 63.7765
Scoping language
Terms used in this subpart are defined in the Clean Air Act (CAA), in 63.2, and in this section.