Internal Audit

Overview

Internal Audit is a systematic process for evaluating whether a quality management system operates as intended and complies with regulatory expectations.

It allows organizations to proactively identify weaknesses and implement improvements before external inspections occur.

Regulatory Framework

Internal audit requirements are defined in FDA 21 CFR 211.180(e), FDA 21 CFR 820.22, ISO 13485, ISO 9001, and EU GMP guidelines.

These regulations emphasize audit independence, documentation, and effective follow‑up of findings.

Audit Planning

Internal audit programs are typically developed based on risk and process importance. High‑risk areas may be audited more frequently.

Audit plans define scope, objectives, schedules, and auditor responsibilities.

Audit Execution

Auditors collect objective evidence through interviews, document review, and observation of operations.

Findings must be documented clearly and supported by traceable evidence.

Follow‑Up and CAPA

Audit findings should lead to corrective actions where necessary. Organizations must verify that actions are implemented and effective.

This follow‑up ensures that identified issues do not recur.

Conclusion

Internal audits support continuous improvement and regulatory readiness by helping organizations maintain visibility into the health of their quality systems.

Terms related to Internal Audit

Internal Audit connects to many other quality concepts. Explore related terms to build a complete picture.

• Audit Trail
• Management Review
• Audit Management Module