Ill. Admin. Code tit. 35 § 211.6950
Current through Register Vol. 48, No. 24, June 14, 2024
"Vapor balance system" means any combination of pipes or hoses which creates a closed system between the vapor spaces of an unloading tank and a receiving tank such that vapors displaced from the receiving tank are transferred to the tank being unloaded.
Ill. Admin. Code tit. 35, § 211.6950
Added at 17 Ill. Reg. 16504, effective September 27, 1993