Design Conformance
Verifies that the facility as built matches the design basis that the PHA was conducted against — and that safety-critical systems are verified functional.
Design · 1 of 4
Construction punch list items have been formally closed, signed off, and outstanding items have documented risk acceptance with completion commitments.
Basis: 29 CFR 1910.119(i)(1) — construction and equipment in accordance with design specifications
Design · 2 of 4
All safety-critical instruments — SIS trips, interlocks, pressure safety valves, rupture disks — have been functionally tested with setpoints confirmed against the final SIL study and instrument index.
Basis: IEC 61511 / ANSI/ISA-84 — SIS validation prior to startup
Design · 3 of 4
Relief device sizing has been verified against final process conditions as built, and backpressure calculations reflect the as-built vent header configuration — including any field deviations during construction.
Basis: API 520/521 — relief device adequacy for covered processes
Design · 4 of 4
P&IDs reflect as-built conditions. All field deviations and construction MOC packages are incorporated into the Process Safety Information package. The PSI is accurate as of startup day.
Basis: 29 CFR 1910.119(d) — Process Safety Information currency
Documentation Readiness
Confirms that written procedures, PHA recommendations, and MOC packages are complete, accurate, and reflected in the current facility configuration.
Documentation · 1 of 4
Startup, normal operation, emergency shutdown, and emergency response procedures are written, field-validated against the as-built equipment, and accepted by the operating team — not just reviewed by engineering.
Basis: 29 CFR 1910.119(i)(2) — safety, operating, maintenance, and emergency procedures in place and adequate
Documentation · 2 of 4
The site Emergency Response Plan is facility-specific — covers the actual chemicals present, references the current facility configuration, and includes notification protocols for local emergency responders.
Basis: 29 CFR 1910.119(n) — Emergency Planning and Response
Documentation · 3 of 4
All HAZOP/PHA action items are classified (Class 1/2/3). Class 1 items are closed with documented evidence. Open items have formal risk acceptance with scheduled completion dates signed by appropriate authority.
Basis: 29 CFR 1910.119(i)(3) — PHA recommendations resolved or documented
Documentation · 4 of 4
All Management of Change packages opened during construction and commissioning are formally closed. Updated documentation — revised drawings, procedures, training records — is attached to each closed MOC package.
Basis: 29 CFR 1910.119(i)(4) — MOC requirements have been met
People & Operations Readiness
Confirms that the operating team has the training, authority, and operational infrastructure to run the facility safely from Day 1.
People · 1 of 4
All operating personnel have task-specific qualification records documenting demonstrated competency — not just training attendance. Records include the procedure revision trained against and the qualification result.
Basis: 29 CFR 1910.119(i)(5) — training of each employee involved in operating has been completed
People · 2 of 4
At minimum one tabletop emergency scenario has been conducted with the operating crew, specific to this facility's credible emergencies — not a generic fire response drill.
Basis: 29 CFR 1910.119(n) — Emergency Response Plan implementation
People · 3 of 4
Authority boundaries between operations and on-site contractors are documented. Permit-to-work coverage is defined and in force. Communication protocols between contractor supervision and operations are established.
Basis: 29 CFR 1910.119(h) — Contractor Safety element
People · 4 of 4
Maintenance procedures exist for all safety-critical equipment. Qualified maintenance technicians are available. Critical spare parts are on hand per the MI program — especially for SIS components with defined proof test intervals.
Basis: 29 CFR 1910.119(j) — Mechanical Integrity element
Overall PSSR Readiness
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Design Conformance
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Documentation
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People & Operations
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Gap Analysis
Items rated below "Complete & Verified" — prioritized by score
Ready for an independent PSSR review?
We conduct independent PSSR verification for new facilities and significant modifications — checking what your team may have normalized, and confirming readiness before chemical introduction.