Preventive Action
Quick facts
| Category | Risk-based prevention of future nonconformities |
|---|---|
| Used by | Manufacturing, medical devices, pharmaceuticals, aerospace, automotive and other regulated industries |
| Also called | PA |
| Related standards | ISO 9001, ISO 13485, AS9100, IATF 16949, FDA quality system requirements |
| Related processes | Risk assessment, CAPA, trend analysis, FMEA, change control |
| Semantic match | preventive action process, risk-based prevention, preventive vs corrective action, proactive quality action |
What is Preventive Action?
Preventive action addresses potential problems before they become real ones. Rather than starting from a defect or complaint that has already happened, preventive action starts from a risk signal, such as a negative trend, a risk assessment finding, or data from a similar product or process, that suggests a failure could occur if nothing changes.
Preventive action is often confused with corrective action, since both can result in similar-looking process changes. The distinguishing factor is timing and trigger: corrective action follows an actual nonconformity, while preventive action is taken before one has occurred.
ISO 9001:2015 removed the dedicated preventive action clause that existed in earlier versions of the standard, integrating the underlying concept into risk-based thinking that runs throughout the current standard. Many organizations, and many industries such as medical devices, still use "preventive action" as a practical, everyday term for this proactive work.
Why is Preventive Action important?
Preventive action allows organizations to address weaknesses identified through risk assessments, near-misses or industry trends before they escalate into customer complaints, regulatory findings or product failures.
Because preventive action is proactive, it is often less costly than fixing a problem after it has already affected customers, production or compliance status. It shifts quality management from a reactive stance to a forward-looking one.
Preventive action supports continual improvement goals by using data, such as process capability trends or risk assessment scores, to guide where an organization should invest attention before a failure occurs.
How does Preventive Action work?
A typical preventive action process includes:
- Risk or trend identification. Identify a potential nonconformity through risk assessment, data trends or lessons learned.
- Evaluation. Assess the likelihood and potential severity if no action is taken.
- Action planning. Define actions that address the underlying risk factor.
- Implementation. Assign owners, deadlines and required resources.
- Effectiveness verification. Monitor relevant data to confirm the anticipated failure did not occur.
- Closure. Approve and close the preventive action once effectiveness is demonstrated.
Preventive Action vs. Corrective Action
| Comparison | Preventive Action | Corrective Action |
|---|---|---|
| Trigger | Potential risk or trend | Existing nonconformance |
| Goal | Prevent occurrence | Prevent recurrence |
| Starts after | Risk identification | Failure |
| ISO 9001 | Risk-based thinking throughout the standard | Clause 10.2 |
Real-world examples of Preventive Action
A medical device manufacturer reviews complaint trends across a product family and notices a component from one supplier shows a rising defect rate elsewhere in the industry. The company proactively tightens incoming inspection for that component before any defect appears in its own product.
An aerospace supplier's FMEA identifies a process step with a high risk priority number due to potential operator error. Preventive action adds a poka-yoke fixture to the process so the error becomes physically difficult to make, before any nonconformity occurs.
A food manufacturer analyzes near-miss reports from its sanitation logs and identifies a recurring pattern that has not yet caused a failure. Preventive action revises the cleaning schedule and inspection criteria to address the pattern proactively.
Regulations and standards related to Preventive Action
ISO 9001:2015 removed the dedicated preventive action clause found in earlier versions and replaced it with risk-based thinking that is integrated throughout the standard, particularly in clauses addressing actions to address risks and opportunities. ISO 13485 retains explicit preventive action language reflecting its emphasis on medical device risk management.
AS9100 and IATF 16949 incorporate preventive concepts through risk management and advanced planning requirements specific to aerospace and automotive supply chains. FDA quality system requirements for medical devices historically required a documented preventive action subsystem as part of CAPA.
Because expectations vary by standard and industry, organizations should confirm how their applicable standard defines and expects preventive or risk-based activity to be documented.
Required by
How QT9 helps with Preventive Action
QT9 QMS preventive action capabilities
- Link preventive actions to risk assessments, FMEAs and trend data.
- Track potential risks alongside actual nonconformances in one system.
- Assign owners, due dates and approval workflows with electronic signatures.
- Verify effectiveness with monitored data before allowing closure.
- Surface emerging trends with real-time dashboards and reporting.
- Maintain a complete, audit-ready record of every preventive action taken.
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Common mistakes with Preventive Action
Common preventive action mistakes include confusing it with corrective action and only opening records after a failure has already occurred, which defeats the proactive purpose of preventive action.
Other problems include relying on vague risk language without tying the action to specific data or a defined risk assessment, and failing to monitor and verify whether the anticipated failure was actually avoided after the action was implemented.
Frequently asked questions
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