HAZOP, LOPA, QRA, Bow-Tie execution with 5-year revalidation discipline
Hazard Identification and Risk Analysis is the engine that converts process knowledge into ranked, defensible risk decisions. The element spans the full study toolkit — HAZID at FEED, IEC 61882 HAZOP at detailed engineering, CCPS LOPA for IPL credit, IEC 61511 SIL allocation, QRA / FERA / OBRA for quantified consequence, Bow-Tie for barrier visualisation, ALARP demonstration, and HRA for human-error pathways.
HIRA is the highest-leverage process safety investment an organisation makes. A FEED-stage HAZOP costs 10-100× less than a post-startup retrofit and prevents the patterns we see in CSB major-incident reports. Organisations that treat HIRA as a defensible, traceable workflow protect their capital programme, regulatory standing, and insurance posture. Those that don't carry latent risk that materialises only in incidents.
HIRA is the analytical engine of Pillar 2 — converting Process Knowledge (Element 6) into risk decisions that drive Pillar 3 (Manage Risk) elements. It produces the action register that feeds MOC (Element 13), the SIL allocations that drive Asset Integrity (Element 10), the scenarios that shape Emergency Management (Element 16), and the IPL credits that protect operations. Without rigorous HIRA, the rest of the system operates on guesswork.
A focused 6-step methodology calibrated to deliver hazard identification & risk analysis as a working capability — not a documented compliance artefact.
Map applicable studies per project stage and hazard inventory; align HAZID with FEED gate, HAZOP with detailed engineering, LOPA / SIL with SIS design.
Specify PHA-Pro / Easy-HAZOP / exSILentia / BowTieXP / PHAST per study type; enforce audit-trail discipline and version control.
Select TÜV / IChemE / CCPS-certified facilitator; ensure multidisciplinary team including operator and contractor representation.
Classify actions per CCPS R/I/D, assign owner, target close-out, risk-rank gating; integrate with MOC and corrective-action database.
Run LOPA, QRA, FERA, ALARP studies per applicable consequence severity; calibrate against site tolerable-frequency matrix.
5-year statutory revalidation + MOC-triggered partial revalidation; integrate with operator handover and shift training.
Decision-gated workflow showing the actual sequence of activities — from initiation through steady-state operation — with key decision points highlighted.
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.