Ill. Admin. Code tit. 35 § 211.5060
Current through Register Vol. 48, No. 49, December 6, 2024
"Pressure/vacuum relief valve" means a device affixed to the storage tank vent pipe to prevent the escape or intrusion of gases.
Ill. Admin. Code tit. 35, § 211.5060
Added at 18 Ill. Reg. 14962, effective September 21, 1994