14 CFR § 65.35 - Knowledge requirements.

---
identifier: "/us/cfr/t14/s65.35"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "14 CFR § 65.35 - Knowledge requirements."
title_number: 14
title_name: "Aeronautics and Space"
section_number: "65.35"
section_name: "Knowledge requirements."
chapter_name: "FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "D"
subchapter_name: "AIRMEN"
part_number: "65"
part_name: "CERTIFICATION: AIRMEN OTHER THAN FLIGHT CREWMEMBERS"
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), 40113, 44701-44703, 44707, 44709-44711, 45102-45103, 45301-45302."
regulatory_source: "Docket 1179, 27 FR 7973, Aug. 10, 1962, unless otherwise noted."
cfr_part: "65"
---


# 65.35 Knowledge requirements.

Each applicant for an air traffic control tower operator certificate must pass a written test on—

(a) The flight rules in part 91 of this chapter:

(b) Airport traffic control procedures, and this subpart:

(c) En route traffic control procedures;

(d) Communications operating procedures;

(e) Flight assistance service;

(f) Air navigation, and aids to air navigation; and

(g) Aviation weather.