---
kind: "section"
citation: "46 C.F.R. § 39.2014"
title: "46"
number: "39.2014"
heading: "Polymerizing cargoes safety—TB/ALL."
url: "https://uscodex.org/cfr/46/39.2014"
---

# §39.2014. Polymerizing cargoes safety—TB/ALL.

- (a) Common vapor headers for polymerizing cargoes must be constructed with adequate means to permit internal examination of vent headers.
- (b) Vapor piping systems and pressure-vacuum valves that are used for polymerizing cargoes must be inspected internally at least annually.
- (c) Pressure-vacuum valves and spill valves which are used for polymerizing cargoes must be tested for proper movement prior to each transfer.

## Notes

### Authority

Authority: 42 U.S.C. 7511b(f)(2); 46 U.S.C. 3306, 3703, 3715(b), 70011, 70034; Executive Order 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation No. 00170.1, Revision No. 01.4.

### Source

Source: USCG-1999-5150, 78 FR 42642, July 16, 2013, unless otherwise noted.