§211.3190. Internal-Floating Roof

Latest version.

"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)

                    
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