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14 CFR § 170.11 - Scope.

---
identifier: "/us/cfr/t14/s170.11"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "14 CFR § 170.11 - Scope."
title_number: 14
title_name: "Aeronautics and Space"
section_number: "170.11"
section_name: "Scope."
chapter_name: "FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "J"
subchapter_name: "NAVIGATIONAL FACILITIES"
part_number: "170"
part_name: "ESTABLISHMENT AND DISCONTINUANCE CRITERIA FOR AIR TRAFFIC CONTROL SERVICES AND NAVIGATIONAL FACILITIES"
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(g), 40103-40107, 40113, 44502, 44701-44702, 44708-44709, 44719, 44721-44722, 46308."
regulatory_source: "56 FR 341, Jan. 3, 1991, unless otherwise noted."
cfr_part: "170"
---

# 170.11 Scope.

This subpart sets forth establishment and discontinuance criteria for Airport Traffic Control Towers.