Risk Based Process Safety (RBPS)Learn from Experience

Auditing

Internal annual + corporate triennial + statutory + insurer audit programme with finding-closure governance

Strategic context

What this element is — and why it matters

Auditing is the assurance mechanism that proves PSM elements are not just designed but actually working. The element maps to OSHA PSM 1910.119(o) (triennial certification), CCPS RBPS Element 19, ISO 19011 audit principles, and the corporate / insurer / statutory audit cycles that overlay site-level execution. Modern programmes integrate cadences across internal annual, corporate triennial, OSHA / MSIHC statutory, third-party certification (ISO 45001, RC14001), and insurer surveillance.

Auditing

Individual significance for organisations

Auditing is how an organisation discovers what it doesn't know about its own performance. Sites that audit rigorously identify drift before it manifests as incidents; sites that audit superficially miss the patterns that matter. The element is also where independent perspective enters — without external eyes, the system optimises for its own blind spots.

Contribution to Risk Based Process Safety (RBPS)

Auditing is the assurance layer over every other RBPS element. It validates Compliance with Standards (Element 2), tests PHA quality (Element 7), examines MOC discipline (Element 13), checks training records (Element 12), and verifies asset integrity programmes (Element 10). Audit findings feed Measurement & Metrics (Element 18) and Management Review (Element 20). Element 19 is the system's self-diagnostic capability.

Key requirements

What compliant execution looks like

OSHA PSM (o) triennial compliance audit
CCPS RBPS Element 19 audit framework
ISO 19011 audit principles and competency
Auditor competency and independence
Finding closure with target close-out cycle
Cross-audit integration (internal / corporate / statutory / insurer / certification)
Implementation methodology

How we implement this element

A focused 6-step methodology calibrated to deliver auditing as a working capability — not a documented compliance artefact.

Audit Programme Design

Map audit cadences — internal annual, corporate triennial, statutory per requirement, third-party certification, insurer surveillance.

Auditor Competency & Independence

Specify lead-auditor competency per ISO 19011 / CCPS; ensure auditor independence from audited area; specify training and certification.

Audit Protocol per Element

Per RBPS / OSHA PSM element, build audit protocol — sample size, evidence requirement, interview protocol, scoring criteria.

Field Audit Execution

Multi-day on-site audit with document review, walk-down, operator interview, supervisor interview, leadership debrief.

Finding Categorisation & Closure

Categorise findings per severity (critical / major / minor); assign owner and target close-out; track in corrective-action database.

Audit Programme Effectiveness

Annual programme review — audit-finding repeat rate, closure-cycle metric, audit quality vs incident trend; integrate with corporate HSE.

Implementation flow

Element-implementation flow chart

Decision-gated workflow showing the actual sequence of activities — from initiation through steady-state operation — with key decision points highlighted.

Start
PSM owner / corporate audit team initiates audit cycle
Cycle Determination
Internal annual / corporate triennial / statutory / insurer
Auditor Selection
Competency + independence per ISO 19011
Protocol Build
Sample size, evidence requirement, interview script per element
Field Audit Execution
Document review + walk-down + interviews + leadership debrief
Decision
Finding Identified?
Decision gate
Finding Categorisation
Critical / major / minor with severity scoring
Owner & Close-Out Target
Assign action, deadline, verification protocol
Corrective Action Tracking
Electronic database with progress monitoring
Close-Out Verification
Auditor verifies action effectiveness
Annual Programme Review
Repeat finding rate, closure cycle, programme refinement
Deliverables

What we produce

  • Audit programme charter with multi-cadence design
  • Auditor competency and independence framework
  • Audit protocol per RBPS / OSHA PSM element
  • Field audit execution plan
  • Finding closure database and tracking dashboard
  • Annual audit programme effectiveness review
Common pitfalls

Where execution fails

  • Tick-box audits finding what auditors expect
  • Findings filed but never closed
  • Corporate audits not integrated with site-level work
  • Auditor competency below the rigour the element requires
Related elements

Explore related elements in this framework

All elements in this framework

Risk Based Process Safety (RBPS) — full element index

Implement this element

Talk to us about implementing Auditing

We can scope this element implementation against your facility, regulatory context, and existing management-system maturity — and integrate it with the other Risk Based Process Safety (RBPS) elements you already operate.