Sec. 259.6. Internal shutoff valves

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Notwithstanding section 259.1 of this Part, any LNG tank temporarily taken out of service and purged to atmosphere shall be fitted with an internal shutoff valve meeting the requirements of NFPA 59A section 6-3.3.3 (as described in section 10.3 of this Title) prior to being put back into service.

                    
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