46 CFR § 39.2015 - Tank barge pressure-vacuum indicating device—B/ALL.

---
identifier: "/us/cfr/t46/s39.2015"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 39.2015 - Tank barge pressure-vacuum indicating device—B/ALL."
title_number: 46
title_name: "Shipping"
section_number: "39.2015"
section_name: "Tank barge pressure-vacuum indicating device—B/ALL."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "D"
subchapter_name: "TANK VESSELS"
part_number: "39"
part_name: "VAPOR CONTROL SYSTEMS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
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."
regulatory_source: "USCG-1999-5150, 78 FR 42642, July 16, 2013, unless otherwise noted."
cfr_part: "39"
---


# 39.2015 Tank barge pressure-vacuum indicating device—B/ALL.

A fixed pressure-sensing device must be installed as close as practicable to the vessel vapor connection on a tank barge with a vapor collection system. The pressure-sensing device must measure the pressure vacuum in the main vapor collection line and have a pressure indicator located where the cargo transfer is controlled.