Full PSM compliance engineered for the OSHA NEP and CSB scrutiny era
OSHA PSM (29 CFR 1910.119) — adopted in 1992 following Bhopal, Piper Alpha, and Phillips 66 — remains the United States' primary statutory framework for facilities handling Highly Hazardous Chemicals above Appendix A thresholds. The OSHA Refinery and Chemical NEPs (CPL 03-00-021, 03-00-014) drive inspection focus toward PHA action close-out, MOC discipline, mechanical integrity, and Process Safety Information accuracy. Modern PSM execution must withstand multi-week NEP inspections, CSB recommendations, EPA RMP parallel reviews, and the post-Chevron-deference enforcement environment — while integrating with CCPS RBPS, IEC 61511 functional safety, and API RP 754 reporting expectations.

Each element below has its own dedicated implementation page with focused methodology, flow chart, and individual significance for organisations. Click any element to explore.
Written plan giving employees access to PSI and consultation on PSM development
Chemistry, technology, and equipment information kept current and accessible
Initial PHA + 5-year revalidation using HAZOP / What-If / Checklist / appropriate method
Written procedures covering normal / startup / shutdown / emergency, certified annually
Initial training before assignment + refresher at minimum 3-year intervals
Selection per safety performance + pre-job orientation + injury tracking + periodic evaluation
Verification before introduction of highly hazardous chemicals — design / construction / PSM readiness
Written procedures + training + inspection / test + deficiency correction for safety-critical equipment
Permit covering fire-prevention requirements during hot work on or near covered processes
Written procedures for change to process chemicals, technology, equipment, procedures
Investigation of catastrophic-release-potential incidents within 48 hours
Emergency action plan per 1910.38 + HAZWOPER 1910.120(q) for HHC releases
Triennial certification that procedures and practices comply with the PSM standard
Trade-secret claims do not relieve disclosure obligations under PSM (a) to (o)
A structured, facilitated process — from scope definition through close-out — producing defensible, actionable outputs.
Determine Appendix A threshold-quantity applicability per regulated HHC list; map covered-process boundaries including all interconnected equipment, pressure-relief routing, and shared utilities; identify co-located processes and exclusions (retail, atmospheric-storage); document Threshold Quantity inventory register.
Conduct element-by-element PSM compliance audit against the OSHA NEP inspection checklist (CPL 03-00-021 / 03-00-014); score each element for documentary evidence, programme execution quality, and finding traceability; identify Willful, Serious, and OTI-class citation exposures.
Audit P&ID-as-built accuracy, MOC backlog register, and PSI document-control history; implement accelerated MOC backlog review with risk-ranking; re-issue affected P&IDs, equipment datasheets, and MAWP records; establish PSI change-management procedure preventing future backlog accumulation.
Establish 5-year PHA revalidation and interim-trigger programme; issue action register with risk-rank gating, ownership, and completion date; build CSB-recommendation-aligned close-out tracker; integrate HAZOP findings into MI, MOC, and PSSR workflows with evidence-based close-out status.
Implement MI programme per API RP 580 RBI with damage-mechanism register, inspection frequency risk-ranking, and NDE specification; deploy PSSR line-item discipline covering mechanical, ESD, SIS, and ATEX pre-start items; build contractor pre-qualification, training, audit, and performance-review programme per OSHA Appendix C.
Design 3-year compliance audit per OSHA (o) using structured interview guides, document review matrices, and field-observation protocols; build corrective-action register with risk-rank gating and management-of-record sign-off; produce re-audit readiness pack including evidence library and interview preparation guide.

Speak with our team to scope an engagement tailored to your facility, regulatory context, and lifecycle stage.