IEC 61511 lifecycle audit and SIS competency verification
Functional safety audits verify compliance with IEC 61511 lifecycle requirements — from SIL determination through proof test execution. Aligned with FSA Stage 1/2/3 framework and TÜV/exida audit criteria.

Define FSA scope per IEC 61511 Phase 15 — Stage 1 (after PHA/SIL allocation), Stage 2 (after design), Stage 3 (after installation/commissioning), Stage 4 (operational, every 3–5 years), Stage 5 (after modification); align with TÜV / exida audit protocol.
Review Functional Safety Management plan per IEC 61511 Cl.5 — roles, responsibilities, competency framework; verify FSE / FSEng / FSP competency records per TÜV / exida certification; review training records and CPD evidence.
Sample evidence across PHA records, SIL allocation, SRS, design, FMEDA, PFD calculations, proof-test records, MOC records, incident investigation; verify chain-of-traceability from hazard to SIF to verification.
Observe SIS in operation — alarm response, bypass authorisation, proof-test execution; conduct site walk-down for label verification, accessibility for testing, environmental conditions; interview operators, technicians, and engineers.
Categorise findings per IEC 61511 audit protocol — Critical (lifecycle gap), Major (process gap), Minor (improvement); assign risk-rank and target close-out date; align with site MOC procedure for corrective action tracking.
Issue FSA report with executive summary, findings register, evidence pack, and improvement roadmap; conduct close-out verification for previous-audit findings; integrate with site management review and HSE leadership reporting.

Complete Functional Safety Audits scope — every calculation, drawing, specification, and construction support activity.
Speak with our team to scope an engagement tailored to your facility, regulatory context, and lifecycle stage.