Start with what changed, not an annual booking.
Moving racks, changing HVAC settings or changing how a room is used raises a practical question: does the previous study still support the intended operation? Ask your quality team to lead that assessment. An anniversary alone does not define the repeat-study scope, and this checklist does not replace applicable requirements.
Request a mapping quoteMake the change record specific
- Layout and storage positions
- Can someone compare the old and new drawings without visiting the site? Mark moved racks, changed storage heights and newly used positions. Include the change date and distinguish installed changes from proposals still awaiting approval.
- HVAC and equipment changes
- Which equipment, control settings or distribution arrangements changed, and who holds the completion records? Ask engineering to identify dependencies beyond the room itself. Describe unresolved commissioning work separately from equipment that is ready for assessment.
- Stock and patterns of use
- Are the products, packing arrangements, occupancy or access patterns different from those represented previously? Ask operations to describe the expected working state after the change, including activities that may not appear on a floor plan.
Review what the previous evidence actually covers
- Recover the baseline
- Which report version, protocol and placement plan supported the earlier decision? List missing records explicitly. If the previous study conditions cannot be reconstructed, tell the reviewer before asking them to rely on its conclusions.
- Bring monitoring and event records
- What do the available trends show before and after the change? Keep maintenance actions, alarm investigations and operating events alongside them. Ask which questions remain unanswered, rather than treating an absence of alarms as a complete assessment.
- Explain the proposed boundary
- If only part of an area is proposed for reassessment, what supports excluding the rest? Who will check shared equipment and adjacent zones? Record the reasoning and unresolved dependencies before requesting a targeted-study price.
Quote the next step your quality team approves
- Distinguish assessment from execution
- Do you need help assembling the impact assessment, executing an approved repeat study, or both? Ask your reviewers to determine whether further mapping is needed and define its extent. Do not turn a preliminary concern into an assumed annual programme.
- Confirm readiness and access
- When will the changed arrangement be stable enough to represent the intended use? Identify access restrictions, ongoing work and who can confirm readiness. Agree separately on any challenge tests, corrective work or further study after remediation.
- Close the documentation loop
- Who will review the new findings, update affected instructions and authorize continued use? Specify the report and comparison records required. Preserve the link to previous decisions so the next reviewer can understand why the scope changed.
Methodology and further reading
WHO identifies significant modifications and unexplained monitoring variability as reasons to reassess mapping.
- WHO: Temperature mapping of storage areas, Supplement 8 (May 2015)
- ATEK guide to USP <1079.4>
- ATEK guide to ISPE temperature mapping
These resources inform scoping; they do not determine which requirements apply to your facility. Your quality team confirms the applicable requirements and approves the protocol.
Continue planning your study
Start with the information you have.
Tell us what needs mapping, where the site is and when you need the work. Mark unknown details as unknown. ATEK confirms service availability, scope and scheduling during review.