---
kind: "section"
citation: "14 C.F.R. § 125.159"
title: "14"
number: "125.159"
heading: "Vent and drain lines."
url: "https://uscodex.org/cfr/14/125.159"
---

# §125.159. Vent and drain lines.


All vent and drain lines, and their fittings, that are located in a designated fire zone must, if they carry flammable fluids or gases, comply with [§ 125.157](/cfr/14/125.157.md), if the Administrator finds that the rupture or breakage of any vent or drain line may result in a fire hazard.


## Notes

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44705, 44710-44711, 44713, 44716-44717, 44722.

### Source

Source: Docket 19779, 45 FR 67235, Oct. 9, 1980, unless otherwise noted.