Ill. Admin. Code tit. 35 § 211.1150
Current through Register Vol. 48, No. 49, December 6, 2024
"Closed vent system" means a system that is not open to the atmosphere and is composed of piping, connections, and, if necessary, flow inducing devices that transport gas or vapor from a piece or pieces of equipment to a control device.
Ill. Admin. Code tit. 35, § 211.1150
Added at 17 Ill. Reg. 16504, effective September 27, 1993