14 CFR § 93.121 - Applicability.

---
identifier: "/us/cfr/t14/s93.121"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "14 CFR § 93.121 - Applicability."
title_number: 14
title_name: "Aeronautics and Space"
section_number: "93.121"
section_name: "Applicability."
chapter_name: "FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "F"
subchapter_name: "AIR TRAFFIC AND GENERAL OPERATING RULES"
part_number: "93"
part_name: "SPECIAL AIR TRAFFIC RULES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 106(f), 40103, 40106, 40109, 40113, 44502, 44514, 44701, 44715, 44719, 46301."
cfr_part: "93"
---


# 93.121 Applicability.

This subpart designates high density traffic airports and prescribes air traffic rules for operating aircraft, other than helicopters, to or from those airports.

[Docket 9974, 35 FR 16592, Oct. 24, 1970, as amended by Amdt. 93-27, 38 FR 29464, Oct. 25, 1973]