PRE-STARTUP SAFETY REVIEW (PSSR)
The term Prestart up Safety Review (PSSR) first received prominence in the process industries with the introduction of the Process Safety Management (PSM) regulations. The wording of the two standards regarding PSSRs is virtually identical, although the industries covered and the reporting requirements differ slightly. The basic fundamental purpose of a prestart up safety review is to ensure that any changes that are made to a facility or item of equipment meet the original design or operating intent. The PSSR aims to catch any changes that may have crept into the system during the detailed engineering and construction phases of a project. PSSR covers not only equipment but also soft issues, such as operating procedures and training.