---
kind: "unit"
title: "14"
title_heading: "Aeronautics and Space"
key: "chII/subchA/part204"
level: "part"
label: "Part 204"
heading: "Data to Support Fitness Determinations"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/14/chII-subchA-part204"
sections_count: 7
---

# Part 204 — Data to Support Fitness Determinations

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

## Contents

- [Subpart A — General Provisions](/cfr/14/chII-subchA-part204-subpartA.md)
- [Subpart B — Filing Requirements](/cfr/14/chII-subchA-part204-subpartB.md)