14 CFR § 252.3 - Definitions.

---
identifier: "/us/cfr/t14/s252.3"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "14 CFR § 252.3 - Definitions."
title_number: 14
title_name: "Aeronautics and Space"
section_number: "252.3"
section_name: "Definitions."
chapter_name: "OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS)"
subchapter_number: "A"
subchapter_name: "ECONOMIC REGULATIONS"
part_number: "252"
part_name: "SMOKING ABOARD AIRCRAFT"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "Pub. L. 101-164; 49 U.S.C. 40102, 40109, 40113, 41701, 41702, 41706 as amended by section 708 of Pub. L. 106-181 and section 401 of Pub. L. 112-95, 41711, and 46301."
regulatory_source: "Docket No. DOT-OST-2000-7473, 65 FR 36775, June 9, 2000, unless otherwise noted."
cfr_part: "252"
---


# 252.3 Definitions.

As used in this part:

*Air carrier* means a carrier that is a citizen of the United States undertaking to provide air transportation as defined in 49 U.S.C. 40102.

*Foreign air carrier* means a carrier that is not a citizen of the United States undertaking to provide foreign air transportation as defined in 49 U.S.C. 40102.

*Smoking* means the use of a tobacco product, electronic cigarettes whether or not they are a tobacco product, or similar products that produce a smoke, mist, vapor, or aerosol, with the exception of products (other than electronic cigarettes) which meet the definition of a medical device in section 201(h) of the Federal Food, Drug and Cosmetic Act, such as nebulizers.

[Docket DOT-OST-2011-0044, 81 FR 11427, Mar. 4, 2016]