---
kind: "section"
citation: "46 C.F.R. § 39.1009"
title: "46"
number: "39.1009"
heading: "Additional tank vessel vapor processing unit requirements—TB/ALL."
url: "https://uscodex.org/cfr/46/39.1009"
---

# §39.1009. Additional tank vessel vapor processing unit requirements—TB/ALL.

- (a) Vapor piping, fitting, valves, flanges, and pressure vessels comprising the construction and installation of a permanent or portable vapor processing unit onboard a tank vessel must meet the marine engineering requirements of [46 CFR chapter I](/cfr/46/chI.md), subchapter F.
- (b) Electrical equipment comprising the construction and installation of a permanent or portable vapor processing unit onboard a tank vessel must meet the electrical engineering requirements of [46 CFR chapter I](/cfr/46/chI.md), subchapter J.
- (c) In addition to complying with the rules of this part, tank vessels with a permanent or portable vapor processing unit must comply with applicable requirements of [33 CFR part 154](/cfr/33/part154.md), subpart P.
- (d) When differences between the requirements for vessels contained in [46 CFR chapter I](/cfr/46/chI.md), subchapters F and J and requirements for facilities contained in [33 CFR part 154](/cfr/33/part154.md), [subpart P](/cfr/46/subpartP.md) need to be resolved, the requirements of [46 CFR chapter I](/cfr/46/chI.md), subchapters F and J apply, unless specifically authorized by the Marine Safety Center.

## 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.