Commissioning

Systems are brought into working order and tested against engineering requirements. Good commissioning generates evidence that risk-based qualification can leverage, focusing later formal effort on what affects product quality.

Purpose

Bring systems into working order and demonstrate they meet engineering requirements, producing leverageable evidence.

Work performed

• Set to work, adjust, and functionally test systems against engineering requirements
• Confirm each system’s impact classification (direct / indirect / no impact) to scope qualification
• Document commissioning results to a standard qualification can leverage under ASTM E2500
• Resolve commissioning deficiencies and hand direct-impact systems forward to qualification

Who is involved

• Commissioning engineers and system SMEs
• Automation/CSV engineers for computerised systems (GAMP 5)
• Quality providing oversight and confirming the leverage approach

What quality owns

• Agreement that commissioning evidence is generated to a leverageable standard
• Confirmation of system impact classification that scopes formal qualification

What engineering owns

• Execution of commissioning and the functional performance of each system
• The commissioning documentation that becomes verification evidence

What operations owns

• Early operation of systems and feedback on real operability
• Operator familiarisation ahead of qualification and start-up

Management decisions

• Acceptance of commissioning completion and readiness to qualify
• Resourcing of deficiency closure against the schedule

Deliverables

• Commissioning plan and executed test records
• System impact-classification register
• Commissioning deficiency/punch list and closure

Evidence to retain

• Commissioning records leveraged into qualification
• The impact-classification rationale that scoped qualification

Common risks

• Informal commissioning whose evidence cannot be leveraged, forcing re-test
• Impact classification done loosely, so qualification is mis-scoped
• Deficiencies carried unclosed into qualification

Gate criteria to advance

• Systems commissioned and functioning to engineering requirements
• Commissioning evidence documented to a standard qualification can leverage
• System classification (direct/indirect impact) confirmed for qualification scoping

Expensive if deferred

• Leverageable commissioning documentation — informal evidence is repeated under qualification rigor
• Impact classification — getting it wrong either over-qualifies or leaves a gap an inspector finds

Business effect

Commissioning done to a leverageable standard shrinks qualification; done informally, it is repeated under qualification rigor at far higher cost.

Greenfield vs brownfield

Brownfield commissioning must protect adjacent live systems while setting new ones to work, and shared-utility tie-ins are commissioned without disturbing the running operation — greenfield commissions an empty plant.