Process Safety Management (PSM) Program describes the management system for protecting people, property, and the environment from catastrophic releases of highly hazardous chemicals in the workplace. PSM is accomplished by systematically evaluating the process (or processes) using approaches to assess the effectiveness of the process design, technology, operations, maintenance, non-routine activities, procedures, emergency preparedness, training, and other process elements. For this, the OSHA Process Safety Management (PSM) standard (29 CFR 1910.119) was published in the Federal Register on Monday, February 24, 1992. The PSM program describes how employees are involved in the programs, how process hazard analyses are conducted, and preparation of operating procedures and practices, training, contractors, pre-start-up safety, mechanical integrity, managing change, incident investigation, emergency preparedness, and compliance audits. Each element has its own importance to be accomplished. An on-going mechanical integrity program is used to ensure safe process operation. This includes the check for the instrumentation...