21 CFR Part 11 is the FDA regulation that makes electronic records and electronic signatures acceptable substitutes for paper in regulated life-sciences workflows — when implemented with appropriate controls. Pharma, biotech, medical device, and CRO teams search for “Part 11 compliant e-signature” constantly; the honest answer is that compliance is a system validation problem, not a checkbox on a SaaS pricing page.
What Part 11 covers
Part 11 applies to electronic records and signatures used in FDA-regulated activities when organizations choose to replace paper. Core themes:
- Validation — systems must be validated for their intended use
- Audit trails — secure, computer-generated, time-stamped records of operator actions
- Signature linking — electronic signatures must be linked to their records and include printed name, date/time, and meaning (review, approval, responsibility)
- Access controls — unique user IDs, authority checks, device checks as appropriate
- Record integrity — protection against unauthorized changes
Electronic signatures under Part 11
Part 11 treats electronic signatures as equivalent to handwritten signatures when they meet regulatory criteria — including at least two identification components (such as user ID and password or token) and proper linkage to the record signed. Open, email-link-only signing without authentication may not satisfy internal SOPs even if legally valid under ESIGN for non-regulated contracts.
What to ask any e-signature vendor
- Can you export a complete audit trail with timestamps and user identity?
- Are signatures embedded in the PDF (flattened) or viewer-dependent?
- How are API and integration actions attributed?
- What is your change-control process for the platform?
- Will you participate in our validation documentation (IQ/OQ/PQ support)?
- Where is data stored and how is retention enforced?
Where SumoSign fits
SumoSign produces append-only audit logs, actor attribution (human, API key, recipient, system), certificates of completion with document hashes, and flattened PDFs — building blocks many validation packages require. We do not sell “Part 11 validated out of the box”; regulated customers must run their own validation in intended use. Enterprise engagements can include documentation support and custom controls review.
Regulated team evaluating signing?
Start with audit evidence and attribution requirements — then run validation against your SOPs.
Talk to usFrequently asked questions
Is any SaaS e-signature automatically Part 11 compliant?
No. Compliance depends on how the system is configured, validated, and used in your regulated process. Vendor features enable compliance; they do not guarantee it.
Do we need digital certificates for Part 11?
Part 11 focuses on controls and linkage, not necessarily qualified certificates. Your SOPs and FDA interpretations for your document type drive whether PKI or additional identity steps are required.
Can AI agents initiate regulated signatures?
Automation can prepare and route records, but approved human signatures (or explicitly validated electronic identities) should remain traceable. Actor attribution in the audit trail is essential.