Before any process hazard analysis the owner or operator must compile, and keep up to date, written process safety information enabling it and the employees to understand the hazards: for the regulated substances, toxicity, permissible exposure limits, physical, reactivity, corrosivity, thermal and chemical stability data and hazardous effects of foreseeable inadvertent mixing (SDSs may be used to the extent they contain this); for the technology, a block or simplified process flow diagram, process chemistry, maximum intended inventory, safe upper and lower limits for temperatures, pressures, flows or compositions and an evaluation of the consequences of deviations (developed with the PHA where the original information no longer exists); and for the equipment, materials of construction, P&IDs, electrical classification, relief system design and design basis, ventilation system design, design codes and standards, material and energy balances for processes built after June 21, 1999, and safety systems such as interlocks, detection or suppression. The owner or operator must ensure and document that the process is designed and maintained in compliance with RAGAGEP and, for existing equipment built to codes no longer in general use, determine and document that it is designed, maintained, inspected, tested and operated safely.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.