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(a) When installation of tanks in accordance with Sections 5597, 5598 and 5599 is impractical because of property or building limitations, tanks for flammable or combustible liquids may be installed in buildings if enclosed as described in (b).
(b) Enclosure shall be liquid and vaportight without backfill. Sides, top and bottom of the enclosure shall be of reinforced concrete at least six inches thick, with openings for inspection through the top only. Tank connections shall be so piped or closed that neither vapors nor liquid can escape into the enclosed space. Means shall be provided to use portable equipment to discharge to the outside any liquid or vapors which might accumulate should leakage occur.
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
1. Amendment filed 7-16-76; effective thirtieth day thereafter (Register 76, No. 29).
2. Amendment of subsection (b) and repealer of subsection (c) filed 9-18-80; effective thirtieth day thereafter (Register 80, No. 38).