---
kind: "section"
citation: "14 C.F.R. § 253.9"
title: "14"
number: "253.9"
heading: "Retroactive changes to contracts of carriage."
url: "https://uscodex.org/cfr/14/253.9"
---

# §253.9. Retroactive changes to contracts of carriage.


An air carrier may not retroactively apply to persons who have already bought a ticket any material amendment to its contract of carriage that has significant negative implications for consumers.


## Notes

### Amendments

[Doc. No. DOT-OST-2007-0022, 74 FR 69002, Dec. 30, 2009]

### Authority

Authority: 49 U.S.C. 40113, 40114, 41501, 41504, 41506, 41509, 41510, 41511, 41702, and 41711.

### Source

Source: ER-1302, 47 FR 52134, Nov. 19, 1982, unless otherwise noted.

### Amendments

[Doc. No. DOT-OST-2007-0022, 74 FR 69002, Dec. 30, 2009]