45 F.4th 48
D.C. Cir.2022Background
- Congress directed the FAA to develop remote-identification standards for drones and extended FAA authority over small recreational drones; the FAA promulgated the Remote ID Rule in Jan. 2021.
- The Rule (effective Sept. 16, 2023) requires most nonmilitary drones >0.55 lb to broadcast locally over unlicensed radio frequencies a Remote ID message (serial number, drone location/altitude/velocity, control-station or takeoff location, time mark, emergency status).
- Remote ID broadcasts are receivable in real time by the public, other pilots, and government actors; FAA retains registrant personally identifying information under the Privacy Act and restricts disclosure/use for enforcement and safety purposes.
- Petitioner Tyler Brennan (drone user/retailer) brought a pre-enforcement facial Fourth Amendment challenge (warrantless location surveillance) and multiple APA procedural challenges seeking vacatur.
- The D.C. Circuit held drones flown outdoors lack a reasonable expectation of privacy in their location, rejected Brennan’s facial Fourth Amendment claim, and rejected his APA challenges (ex parte communications, logical-outgrowth, statutory consultation, and inadequate response to comments).
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Fourth Amendment facial challenge | Remote ID enables constant, warrantless tracking of pilots and can reveal location at private places; facial invalidation required. | Drone flights are public; Remote ID broadcasts are local, intermittent, anonymized, and FAA access/use is constrained. | Denied: facial challenge fails because pilots generally lack a reasonable expectation of privacy in outdoor drone locations; alleged future abuses are speculative. |
| As‑applied/standing concern re: home/curtilage intrusions | Rule could be used to identify operators at homes or in curtilage, implicating Kyllo/Collins protections. | Rule exempts indoor flights and netted enclosures; no record showing typical flights originate in private, nonvisible spaces. | No imminent injury shown; as‑applied claims remain possible but not ripe. |
| Ex parte communications / notice-and-comment | FAA relied on secret industry (Cohort), NASA, and FBI‑Academy demos that were not in the record or open for comment. | Cohort input concerned an internet‑based proposal the FAA rejected; NASA work and demos did not materially affect the Final Rule; public comment addressed core issues. | Denied: petitioner failed to show ex parte contacts materially influenced the Final Rule or deprived required public comment. |
| Logical‑outgrowth / substantive changes | Final Rule’s switch to geometric altitude and broadcast‑module retrofit option were novel and not reasonably foreseeable from the NPRM. | FAA solicited comment on altitude measurement and retrofit options (including broadcast); commenters raised these issues; changes flowed from the record. | Denied: changes were logical outgrowths; the public had adequate notice and opportunity to comment. |
| Statutory consultation & response to comments | FAA failed to consult RTCA/NIST as §2202 required and ignored significant substantive comments (costs, hobbyists, constitutional concerns). | FAA convened ARC with RTCA participation and NIST observation, reported to Congress, and addressed major comment themes; speculative comments need not be exhaustively answered. | Denied: statutory consultation occurred and FAA adequately addressed significant comments; remaining objections were speculative or meritless. |
Key Cases Cited
- Carpenter v. United States, 138 S. Ct. 2206 (2018) (long‑term cell‑site location data can implicate Fourth Amendment privacy)
- United States v. Jones, 565 U.S. 400 (2012) (GPS tracking and prolonged monitoring raise Fourth Amendment concerns)
- United States v. Knotts, 460 U.S. 276 (1983) (no reasonable expectation of privacy for movements observable from public routes)
- Karo v. United States, 468 U.S. 705 (1984) (installation of tracking device is not itself the Fourth Amendment violation; exploitation triggers inquiry)
- Katz v. United States, 389 U.S. 347 (1967) (reasonable expectation of privacy test)
- Oliver v. United States, 466 U.S. 170 (1984) (open fields doctrine: no Fourth Amendment protection for open‑field activities)
- California v. Ciraolo, 476 U.S. 207 (1986) (naked‑eye aerial observation of curtilage did not violate Fourth Amendment)
- Clapper v. Amnesty Int’l USA, 568 U.S. 398 (2013) (standing requires concrete, imminent injury; speculative future harms insufficient)
- City of Los Angeles v. Patel, 576 U.S. 409 (2015) (facial challenge standard in administrative context)
- Vt. Yankee Nuclear Power Corp. v. Nat. Res. Def. Council, 435 U.S. 519 (1978) (agencies need not adopt procedures beyond APA; ex parte matters immaterial to final action do not require notice)
- Ass’n of Private Sector Colls. & Univs. v. Duncan, 681 F.3d 427 (D.C. Cir. 2012) (standard for facial challenges to agency rules)