How to use this document
Copy the template below into your quality system. Replace every <<FILL: ...>> placeholder with your company, system, and process specifics, then route it through your own document control, review, and approval. The filled specimen shows one worked example; adapt the numbers and scope to your operation and verify each cited regulation or standard against the current source before you rely on it.
This is a generic, originally worded starting point. It contains no confidential, proprietary, or employer material, it is drafted with AI assistance and reviewed, it is not legal or compliance advice, and adopting it does not by itself create or prove compliance. See the Disclaimer and Terms.
This is a ready-to-use form for documenting any recalculation of Continued Process Verification control limits. Complete one form per recalculation event and route it through change control before the new limits take effect. Replace every <<FILL: ...>> placeholder with your own specifics. A filled specimen follows.
1. Purpose
This form documents the trigger, statistical basis, and approval for recalculating the control limits on a monitored Continued Process Verification parameter, so the recalculation is traceable to a predefined trigger and a documented statistical method rather than to the presence of an inconvenient signal in the data.
2. Trigger
State which predefined trigger applies. A recalculation with no trigger checked below is not eligible for approval on this form.
3. Open signals at the time of this request
A recalculation requested while an unexplained signal remains open on the same parameter is not approved on this form; close the investigation first, through the normal escalation path, or state explicitly why the recalculation is independent of the open signal.
4. Statistical basis
5. Impact assessment
6. Approvals
Filled specimen
Extract for an example annual review recalculation on a biologics drug substance CQA. Company and numbers are illustrative.
The specimen shows the form doing its job: the recalculation is triggered by the scheduled annual review, not by a signal sitting in the data, and section 3 confirms no open, unexplained signal existed on this parameter when the request was made.
- Control limits widened or recentered with no documented trigger, discovered only by comparing an old chart to a new one and finding no record explaining the change.
- A recalculation submitted while an unresolved trend signal is still open on the same parameter, effectively making the signal disappear instead of resolving it.
- A new limit calculated from a data set with too few points to support it, with no reference back to the working minimums stated in the CPV plan.
- No impact assessment on file connecting a limit change to a filed commitment, discovered only when a reviewer cross-checks the filing separately.
- Set the trigger list in section 2 to match exactly what your own CPV plan defines as valid triggers; do not add a trigger here that the plan does not already authorize.
- Always complete section 3 before section 4. Confirming no open signal exists, or that one has already closed, has to happen before the new limits are calculated, not after.
- Route every completed form through change control, and hold the new limits from taking effect until QA approval is recorded in section 6.
- Attach the underlying data set and chart output as a supporting file referenced from section 4, rather than only summarizing it here.
