---
kind: "section"
citation: "14 C.F.R. § 258.3"
title: "14"
number: "258.3"
heading: "Definitions."
url: "https://uscodex.org/cfr/14/258.3"
---

# §258.3. Definitions.


As used in this part:

- (a) **Air transportation—** has the meaning ascribed to it in [49 U.S.C. 40102(5)](/usc/49/40102.md?p=5).
- (b) Carrier means any air carrier or foreign air carrier as defined in 49 U.S.C. [40102(2)](/usc/49/40102.md?p=2) or [49](/usc/49/49.md) U.S.C. 40102(21), respectively, that engages directly in scheduled passenger air transportation.
- (c) Change-of-gauge service means a service that requires a change of aircraft en route but has only a single flight number.
- (d) **Ticket agent—** has the meaning ascribed to it in [49 U.S.C. 40102(a)(45)](/usc/49/40102.md?p=a-45).

## Notes

### Amendments

[64 FR 12860, Mar. 15, 1999, as amended by Doc. No. DOT-OST-2014-0140, 84 FR 15933, Apr. 16, 2019]

### Authority

Authority: 49 U.S.C. 40113(a) and 41712.

### Source

Source: 64 FR 12860, Mar. 15, 1999, unless otherwise noted.

### Amendments

[64 FR 12860, Mar. 15, 1999, as amended by Doc. No. DOT-OST-2014-0140, 84 FR 15933, Apr. 16, 2019]