Commissioning Levels 0–6 in Practice
L0–L1: Design & Factory Readiness
Commissionability checks, design intent alignment, FAT strategy and acceptance criteria preparation.
L2–L3: Installation to Start-up
Installation readiness, QA/QC alignment, energisation readiness and controlled system start-up.
L4: Functional Testing
Verification of system-level functions, alarms, controls and expected operating behaviour.
L5: Integrated System Testing
Cross-system scenarios, failure mode checks, resilience validation and end-to-end operational logic.
L6: Closeout & Handover
Final issue closure, evidence package completion, training coordination and formal operations handover.
Live-Site Considerations
Phased commissioning in operational environments with uptime constraints and strict risk controls.
