Ill. Admin. Code tit. 35 § 211.6930
Current through Register Vol. 48, No. 24, June 14, 2024
"Valves not externally regulated" means valves that have no provision for external adjustment or governance during their operation, such as in-line check valves.
Ill. Admin. Code tit. 35, § 211.6930
Added at 17 Ill. Reg. 16504, effective September 27, 1993