---
kind: "section"
citation: "14 C.F.R. § 252.3"
title: "14"
number: "252.3"
heading: "Definitions."
url: "https://uscodex.org/cfr/14/252.3"
---

# §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](/usc/49/40102.md).

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](/usc/49/40102.md).

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)](/cfr/14/201.md?p=h) of the Federal Food, Drug and Cosmetic Act, such as nebulizers.


## Notes

### Amendments

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

### Authority

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.

### Source

Source: Docket No. DOT-OST-2000-7473, 65 FR 36775, June 9, 2000, unless otherwise noted.

### Amendments

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