14 CFR § 101.21 - Applicability.

---
identifier: "/us/cfr/t14/s101.21"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "14 CFR § 101.21 - Applicability."
title_number: 14
title_name: "Aeronautics and Space"
section_number: "101.21"
section_name: "Applicability."
chapter_name: "FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "F"
subchapter_name: "AIR TRAFFIC AND GENERAL OPERATING RULES"
part_number: "101"
part_name: "MOORED BALLOONS, KITES, AMATEUR ROCKETS, AND UNMANNED FREE BALLOONS"
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), 106(g), 40101 note, 40103, 40113-40114, 45302, 44502, 44514, 44701-44702, 44721, 46308."
cfr_part: "101"
---


# 101.21 Applicability.

(a) This subpart applies to operating unmanned rockets. However, a person operating an unmanned rocket within a restricted area must comply with § 101.25(g)(2)) and with any additional limitations imposed by the using or controlling agency.

(b) A person operating an unmanned rocket other than an amateur rocket as defined in § 1.1 of this chapter must comply with 14 CFR Chapter III.

[Docket FAA-2007-27390, 73 FR 73781, Dec. 4, 2008, as amended by Docket FAA-2022-1355, Amdt. 101-11, 87 FR 75846, Dec. 9, 2022]