Corrective Action Request (CAR)

A Corrective Action Request (CAR) is a formal record used to document a nonconformance or problem and request structured corrective actions to address its root cause. In industrial and regulated manufacturing environments, a CAR typically triggers a defined process to investigate the issue, implement corrections, and verify that it does not recur.

What a Corrective Action Request includes

While formats vary by organization and system, a CAR commonly includes:

• Problem description: What went wrong, where, and when, often tied to a product, batch, order, equipment, or process step.
• Evidence of nonconformance: References to records, inspection data, deviations, audit findings, or customer complaints.
• Immediate correction: Actions taken to contain the issue, such as quarantining material or adjusting a process.
• Root cause analysis: Investigation details identifying underlying technical, process, or organizational causes.
• Corrective actions: Defined actions to eliminate the root cause, with owners, due dates, and required resources.
• Verification and effectiveness check: Criteria and results that show whether the corrective action resolved the issue and is sustained.
• Approvals and closure: Sign-offs from responsible functions (for example, quality, engineering, operations) indicating that the CAR can be closed.

How CARs are used in operations

In manufacturing operations, a CAR is often initiated when a nonconformance exceeds predefined thresholds, is systemic, or has potential regulatory, safety, or customer impact. CARs can originate from:

• Internal or external audits
• Nonconforming material reports (NCMR) or deviation reports
• Customer complaints and returns
• Supplier quality issues
• Process performance trends or recurring equipment failures

CARs may be managed within a quality management system (QMS), manufacturing execution system (MES), or integrated CAPA module. They provide traceable documentation of the problem, analysis, actions, and verification, which is often important for internal governance and external inspections.

Relationship to CAPA and other quality processes

A Corrective Action Request is one way to initiate or document the corrective portion of a Corrective and Preventive Action (CAPA) process. In some organizations, CARs are:

• Used specifically for corrective actions tied to known nonconformances, while preventive actions are tracked separately.
• Integrated into a broader CAPA workflow, where a CAR record becomes part of a full CAPA case.

CARs may interact with document control (to revise procedures or work instructions), training systems (to update operator qualifications), and supplier management processes (when issues originate externally).

Common confusion

• CAR vs. CAPA: CAR usually refers to the specific request or record for corrective action on an identified problem. CAPA refers more broadly to the system or process for both corrective and preventive actions.
• CAR vs. NCR (Nonconformance Report): An NCR primarily documents that a nonconformance has occurred. A CAR focuses on investigating the causes and defining actions to prevent recurrence, often using the NCR as an input.