---
kind: "section"
citation: "14 C.F.R. § 89.501"
title: "14"
number: "89.501"
heading: "Applicability."
url: "https://uscodex.org/cfr/14/89.501"
---

# §89.501. Applicability.

- (a) **This subpart prescribes—**
  - (1) Requirements for the design and production of unmanned aircraft with remote identification produced for operation in the airspace of the United States.
  - (2) **Requirements for the design and production of remote identification broadcast modules.**
  - (3) **Procedural requirements for the submission, acceptance, and rescission of declarations of compliance.**
  - (4) **Rules governing persons submitting declarations of compliance for FAA acceptance under this part.**
- (b) Except as provided in [paragraph (c)](#c) of this section, this subpart applies to the design and production of all unmanned aircraft operated in the airspace of the United States.
- (c) Except for unmanned aircraft designed and produced to be standard remote identification unmanned aircraft, this subpart does not apply to the design or production of:
  - (1) **Home-built unmanned aircraft.**
  - (2) **Unmanned aircraft of the United States Government.**
  - (3) Unmanned aircraft that weigh 0.55 pounds or less on takeoff, including everything that is on board or otherwise attached to the aircraft.
  - (4) Unmanned aircraft designed or produced exclusively for the purpose of aeronautical research or to show compliance with regulations.

## Notes

### Authority

Authority: 49 U.S.C. 106(f), 40101(d), 40103(b), 44701, 44805, 44809(f); Section 2202 of Pub. L. 114-190, 130 Stat. 629.

### Source

Source: Amdt. 89-1, 86 FR 4505, Jan. 15, 2021, unless otherwise noted.