Control Plan Adherence Audit

It checks whether the current control plan is available, whether the revision matches the released document, and whether CTQs are being verified at the required operation. It also captures inspection frequency, measurement system details, calibration status, and reaction plan readiness. The template is meant to show whether the shop floor is actually following the plan, not just whether the plan exists.

Use it during layered process audits, quality walks, internal audits, or after a process change, deviation, or customer complaint. It is also useful when a line is new, a gauge has been replaced, or operators are rotating between stations. If the process is stable and highly automated, you may still use it periodically to confirm the control plan matches actual practice.

A quality engineer, supervisor, production leader, or trained auditor can run it, as long as they understand the control plan and the CTQs being checked. The person auditing should be able to verify documents, observe the operation, and confirm the operator can explain the reaction plan. For higher-risk processes, a cross-functional auditor from quality and manufacturing is often better.

The cadence depends on process risk, customer requirements, and change frequency. High-risk or recently changed processes may need daily or weekly checks, while mature stable processes may be audited monthly or per shift rotation. The template includes last inspection time, next due time, and interval fields so you can enforce the cadence you set.

This template supports ISO 9001:2015 expectations for controlled production, documented information, monitoring, and corrective action. It also aligns with common quality system practices used in automotive, aerospace, and general manufacturing control plans. It is not a certification document by itself, but it helps prove the process is being followed.

Common misses include using an outdated control plan, skipping a required CTQ check, recording results for the wrong lot or interval, and using a gauge that is out of calibration. Auditors also find operators who know the spec but not the reaction plan, or escalation paths that are not posted at the station. Those gaps often point to a control plan that is not being translated into daily work.

Yes. You can tailor the CTQ list, inspection frequency, measurement method, and reaction plan fields to each product family or workstation. Many teams clone one version per line or process step so the audit matches the actual control plan instead of forcing one generic form across the plant.

An ad-hoc check usually depends on memory and informal judgment, which makes it easy to miss revision changes, timing requirements, or reaction steps. This template turns the audit into a repeatable verification of the control plan itself, with evidence for what was checked and what was out of alignment. That makes follow-up and corrective action much easier.

Yes. The findings can feed corrective action, non-conformance, or CAPA workflows, and the audit can be linked to document control or calibration records. If your system supports attachments, add photos of the workstation document, gauge label, and any non-conformance evidence. That creates a cleaner audit trail for review and escalation.