---
kind: "unit"
title: "39"
title_heading: "Postal Service"
key: "chI/subchN/part964"
level: "part"
label: "Part 964"
heading: "Withheld Mail"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/39/chI-subchN-part964"
sections_count: 23
---

# Part 964 — Withheld Mail

Title 39 C.F.R. — Postal Service › Chapter I — United States Postal Service › Subchapter N — Procedures

## Sections

- [§964.1. Authority for rules.](/cfr/39/964.1.md)
- [§964.2. Scope of rules.](/cfr/39/964.2.md)
- [§964.3. Customer petitions; notice of hearing; answer; summary judgment.](/cfr/39/964.3.md)
- [§964.4. Hearings.](/cfr/39/964.4.md)
- [§964.5. Election as to hearing.](/cfr/39/964.5.md)
- [§964.6. Default.](/cfr/39/964.6.md)
- [§964.7. Presiding officers.](/cfr/39/964.7.md)
- [§964.8. Subpoenas and witness fees not authorized.](/cfr/39/964.8.md)
- [§964.9. Discovery; interrogatories; admission of facts; production and inspection of documents.](/cfr/39/964.9.md)
- [§964.10. Evidence.](/cfr/39/964.10.md)
- [§964.11. Transcript.](/cfr/39/964.11.md)
- [§964.12. Computation of time.](/cfr/39/964.12.md)
- [§964.13. Continuances and extensions.](/cfr/39/964.13.md)
- [§964.14. Proposed findings of fact and conclusions of law.](/cfr/39/964.14.md)
- [§964.15. Decisions.](/cfr/39/964.15.md)
- [§964.16. Appeal.](/cfr/39/964.16.md)
- [§964.17. Final agency decision.](/cfr/39/964.17.md)
- [§964.18. Compromise and informal disposition.](/cfr/39/964.18.md)
- [§964.19. Orders.](/cfr/39/964.19.md)
- [§964.20. Modification or revocation of orders.](/cfr/39/964.20.md)
- [§964.21. Official record.](/cfr/39/964.21.md)
- [§964.22. Public information.](/cfr/39/964.22.md)
- [§964.23. Ex parte communications.](/cfr/39/964.23.md)