Mechanical Integrity Program Nuances for Process Safety Management Compliance Mechanical Integrity is arguably one of the most difficult elements to implement in the 29 CFR 1910.119, Process Safety Management for Highly Hazardous Chemicals, and 40 CFR Part 68, Chemical Accident Prevention Provisions [Risk Management Program] regulations. When developing a Mechanical Integrity Program for Process Safety Management (PSM) or Risk Management Program (RMP), great care must be taken to avoid the potential to balloon into giant behemoth of a program. This presentation focuses the Mechanical Integrity program into the root function – to effectively maintain equipment associated with the covered process in a manner which assures quality, confirms reliability, and establishes pedigree in support of operational safety. Discussion explores the nuances of the PSM/RMP Mechanical Integrity program by dissecting key elements from the rule(s). Industrial Hygiene and Occupational Safety professionals will gain insights on leveraging against the remaining PSM/RMP program elements and tips for “right sizing” a PSM/RMP-compliant Mechanical Integrity program.