Preparing for a GMP / TGA Audit: Cleaning Checklist

A Good Manufacturing Practice (GMP) audit rarely turns on whether your facility is clean on the day. It turns on whether you can prove it has been clean, consistently, with documented evidence stretching back across every shift. For pharmaceutical, medical-device, food and other regulated manufacturers across Greater Brisbane and Ipswich, cleaning is one of the most frequently scrutinised — and most frequently cited — areas in a Therapeutic Goods Administration (TGA) inspection or a HACCP-based food-safety audit.

This guide sets out a practical, pre-audit cleaning checklist so your evidence holds up when the inspector arrives.

Why cleaning attracts audit scrutiny

Contamination control sits at the heart of GMP. In a cleanroom classified under ISO 14644 (Class 5 through Class 9) or an EU GMP grade (A to D), cleaning is the primary control that keeps particle and microbial counts within limits. Auditors know that, so they probe it hard. A spotless room with missing or inconsistent records still fails, because GMP follows a simple principle: if it isn’t documented, it didn’t happen.

Get your cleaning documentation in order

Documentation is where most cleaning-related findings originate. Before an audit, confirm you can produce the following without scrambling:

• Cleaning SOPs — current, version-controlled, approved, and matched to what staff actually do. Each should state the method, approved agents and dilutions, contact (dwell) times, frequency and the person responsible.
• Cleaning and sanitisation logs — completed in real time, signed and dated, with no gaps. Inspectors often cross-check a log against a roster or batch record.
• Approved chemical list and Safety Data Sheets — agents in use must match those validated in your SOPs, with rotation of disinfectants where biofilm or resistance is a concern.
• Training records — evidence that cleaning staff are trained and competency-assessed against the current SOP version.
• Equipment cleaning records — for shared equipment, change-over and line-clearance documentation that demonstrates no cross-contamination.

Validation and verification

Cleaning validation answers the question, “How do you know your cleaning works?” Be ready to show validation or verification evidence — for example, environmental monitoring trends, surface swabs or contact (RODAC) plates, and any TOC or visual-inspection results for equipment cleaning. The records should show defined acceptance limits and a clear trend over time, not a single passing result.

A pre-audit cleaning checklist

Work through this in the days before an inspection:

• Walk every classified area against its cleaning SOP and confirm the schedule has been followed and signed off.
• Check the gowning and airlock areas — these are high-visibility zones; verify garment storage, hygiene signage and consumable stock.
• Inspect hard-to-reach surfaces — ceilings, return-air grilles, equipment undersides and door tracks are common finding sites.
• Reconcile your logs — every scheduled clean for the review period should have a matching, legible, signed entry.
• Confirm chemical dilutions and dwell times match the SOP, and that decanted bottles are labelled and in date.
• Verify segregation of cleaning equipment by zone or grade (colour-coding), with no mops or cloths crossing classifications.
• Review your environmental monitoring trend and have explanations ready for any excursions and the corrective actions taken.

Common cleaning-related audit findings

Across GMP and TGA inspections, the recurring cleaning findings are predictable — and avoidable:

• Logs completed retrospectively or with unexplained gaps.
• SOPs that no longer reflect actual practice, or expired versions still in use.
• Cleaning agents or dilutions that differ from the validated method.
• No cleaning validation, or validation that was never re-confirmed after a change.
• Cross-contamination risk from shared or poorly segregated cleaning equipment.

Most of these are systems failures rather than dirty rooms. A disciplined, well-documented GMP & cleanroom cleaning programme closes them out before an auditor ever finds them.

Build audit-readiness into your routine

The facilities that pass smoothly treat audit-readiness as a daily habit, not an annual panic. Real-time logging, version-controlled SOPs, trained operators and a documented contamination-control strategy mean an inspection simply confirms what you already know. For regulated sites, it also pays to align cleaning with your broader commercial cleaning and facilities programme so accountability sits with one trained, ISO 9001–audited provider.

Talk to Broadsafe before your next audit

Broadsafe Maintenance delivers documented, audit-ready GMP and cleanroom cleaning for pharmaceutical, medical-device and food-production facilities across Brisbane and Ipswich. To review your cleaning documentation and prepare for your next GMP or TGA audit, contact us.