---
kind: "unit"
title: "14"
title_heading: "Aeronautics and Space"
key: "chII/subchB/part305"
level: "part"
label: "Part 305"
heading: "Rules of Practice in Informal Nonpublic Investigations"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/14/chII-subchB-part305"
sections_count: 11
---

# Part 305 — Rules of Practice in Informal Nonpublic Investigations

Title 14 C.F.R. — Aeronautics and Space › Chapter II — Office of the Secretary, Department of Transportation (aviation Proceedings) › Subchapter B — Procedural Regulations

## Sections

- [§305.1. Applicability.](/cfr/14/305.1.md)
- [§305.2. Definition.](/cfr/14/305.2.md)
- [§305.3-305.4. Reserved](/cfr/14/305.3-305.4.md)
- [§305.5. Initiation of investigation.](/cfr/14/305.5.md)
- [§305.6. Appearance of witnesses.](/cfr/14/305.6.md)
- [§305.7. Issuance of investigation subpenas.](/cfr/14/305.7.md)
- [§305.8. Reserved](/cfr/14/305.8.md)
- [§305.9. Rights of witnesses.](/cfr/14/305.9.md)
- [§305.10. Nonpublic character of proceedings.](/cfr/14/305.10.md)
- [§305.11. Procedures after investigation.](/cfr/14/305.11.md)
- [§305.12. Motions to quash or modify an investigation subpena.](/cfr/14/305.12.md)