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NFPA allowances for spill containment dikes in the egress path

Question asked by kevin.uber on Apr 2, 2018
Latest reply on Apr 2, 2018 by cdafd

I work in a facility with many isolated industrial buildings that present a unique environmental hazard as the walls surrounding process equipment and chemical storage are exterior walls.  Therefore, nearly all of these buildings are fitted with spill containment dikes, usually (but not always) incorporated into the thresholds, that are between four and nine inches high.  The dikes are usually only a few inches deep, of noncombustible construction and are painted safety-yellow.  Is there any allowance given in NFPA codes for spill containment dikes necessary for personnel, facility and environmental protection that do not meet the standard egress path requirements given in NFPA 101?