Operations
Pre-Startup Safety ReviewPSSR
A structured review confirming a facility or system is safe to start up.
Required by OSHA PSM (29 CFR 1910.119(i)) for new or modified facilities where the change triggers MOC. A PSSR confirms: construction complies with design specs, safety/operating/maintenance/emergency procedures are in place, a PHA has been performed and recommendations addressed, and affected employees have been trained. Sign-off by operations, maintenance, and safety is typical.