21 CFR Part 11 Calibration Requirements
FDA 21 CFR Part 11 establishes the criteria under which the FDA considers electronic records and electronic signatures to be trustworthy, reliable, and equivalent to paper records and handwritten signatures. For calibration management, Part 11 compliance means that all electronic calibration records must have audit trails, access controls, and validated electronic signatures. Organizations in FDA-regulated industries must ensure their calibration software meets these requirements to avoid regulatory citations.
Part 11 requires that electronic calibration records be protected by access controls that limit system access to authorized individuals. Audit trails must automatically record the date, time, operator identity, and nature of all record changes without overwriting original entries. Electronic records must be retrievable throughout their required retention period, and systems must include authority checks to ensure only authorized personnel can perform specific calibration functions.
Electronic signatures used to approve calibration results must be linked to their respective records so that signatures cannot be transferred or reused. Each electronic signature must include the printed name of the signer, the date and time of signing, and the meaning of the signature (such as approval, review, or responsibility). Biometric or non-biometric signature components must be distinct to each individual and not reusable.
CalibrationOS implements Part 11 controls including role-based access control with configurable permission levels, tamper-evident audit trails that record every data modification with user identity and timestamp, and electronic signatures with signature meaning capture. The platform is built with a validation-ready architecture including IQ/OQ/PQ documentation, and supports periodic review of audit trail entries as required by FDA guidance.
Part 11 applies when FDA predicate rules such as 21 CFR Part 820 (Quality System Regulation), 21 CFR Part 211 (cGMP for drugs), or 21 CFR Part 820.72 (inspection, measuring, and test equipment) require records to be maintained. CalibrationOS maps Part 11 technical controls to the specific predicate rule calibration requirements, ensuring that electronic calibration records satisfy both the predicate rule content requirements and Part 11 trustworthiness criteria.
If your organization is FDA-regulated and uses electronic records for calibration management, Part 11 compliance is required. This applies to pharmaceutical, medical device, biotech, and food manufacturing companies that maintain calibration records electronically rather than on paper. Non-compliance can result in FDA Form 483 observations and Warning Letters.
CalibrationOS records every calibration record creation, modification, and deletion with the user identity, timestamp, reason for change, and before/after values. Audit trail entries cannot be modified or deleted by any user, and the complete trail is available for FDA inspector review at any time during an inspection.
CalibrationOS captures electronic signatures with the signer's printed name, date and time, and the meaning of the signature (e.g., 'Calibration Approved' or 'Reviewed by Quality'). Signatures are cryptographically bound to the calibration record and require re-authentication to prevent unauthorized use of another person's credentials.
CalibrationOS provides a comprehensive validation package including Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ) protocols. The validation documentation follows GAMP 5 guidelines and includes a requirements traceability matrix, risk assessment, and pre-written test scripts to streamline customer-side validation.
FDA 21 CFR Part 11 is the US regulation for electronic records, while EU Annex 11 covers computerized systems in GMP environments. Both require audit trails, access controls, and validation, but Annex 11 adds requirements for business continuity, data migration, and periodic review. CalibrationOS supports both regulatory frameworks.
CalibrationOS automates tracking, audit trails, and due date management to keep you 21 CFR Part 11-ready.
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