June 14, 2018
Risk-Based Process Safety is a holistic approach that establishes a fully functional process safety program. This is in contrast to OSHA's CFR 1910.119, Process Safety Management of Highly Hazardous Chemicals (OSHA PSM), which is a regulation where program sustainability is not addressed. For example, the following critical PSM program elements are not an express part of OSHA PSM:
API-754 was issued in 2010 and has since helped the process industries redefine what constitutes a process safety incident. When OSHA PSM was promulgated in the early 90s, little guidance existed regarding PSM incidents and both understanding and interpretation varied across industry. API-754 provides guidelines for the development of metrics that are not just lagging, but also predictive in nature. API-754 describes process safety events in terms of tiers per the following structure (abbreviated):
In conclusion, Risk-Based Process Safety provides a framework to further identify the necessary components of a process safety program. It also provides further details on what is required, although there are few prescriptive guidelines. While it's still a performance-based methodology, Risk-Based Process Safety coupled with API-754 for program health monitoring is the best available guidance to implement process safety for the process industries.