Certified vs Registered Mail for Legal Service
Choose the right USPS service based on proof needs, cost, and security.
Published October 26, 2025
Certified and registered mail both provide USPS tracking, but they serve different purposes. Certified mail is fast and affordable for proof of mailing, while registered mail adds custody controls for high-value items.
When to use this
- Use certified mail when court rules require proof of mailing or delivery confirmation.
- Use registered mail when you're sending original documents or evidence that must stay sealed.
- Record whichever option you choose in a log to show diligence later.
How to do it (fast)
- Decide which USPS service satisfies your jurisdiction's service rules and budget.
- Log the mailing in CertifiedMailLog, noting whether it was certified or registered and why.
- Attach receipts, tracking updates, and any returned green cards to your ProofOfService packet.
- Update TimelineCourt with the mailing date and expected delivery to monitor deadlines.
Why this helps
- Understanding the difference prevents wasted fees or rejected proofs of service.
- Logs and receipts show the court you took reasonable steps to reach the other party.
- Tracking everything locally keeps sensitive addresses and documents private.
Related tools
Not legal advice. Courts set their own rules. Keep your original records.