TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE B: AIR POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER c: EMISSION STANDARDS AND LIMITATIONS FOR STATIONARY SOURCES
PART 211 DEFINITIONS AND GENERAL PROVISIONS
SECTION 211.3190 INTERNAL-FLOATING ROOF
SUBTITLE B: AIR POLLUTION
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER c: EMISSION STANDARDS AND LIMITATIONS FOR STATIONARY SOURCES
PART 211 DEFINITIONS AND GENERAL PROVISIONS
SECTION 211.3190 INTERNAL-FLOATING ROOF
Section 211.3190 Internal-Floating Roof
"Internal-floating roof" means a cover or roof in a fixed-roof tank which rests upon and is supported by the volatile organic liquid being contained and is equipped with a closure seal or seals to close the space between the roof edge and tank shell.
(Source: Added at 17 Ill. Reg. 16504, effective September 27, 1993)