49 CFR § 178.345-12 - Gauging devices.

---
identifier: "/us/cfr/t49/s178.345-12"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 178.345-12 - Gauging devices."
title_number: 49
title_name: "Transportation"
section_number: "178.345-12"
section_name: "Gauging devices."
chapter_name: "PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "C"
subchapter_name: "HAZARDOUS MATERIALS REGULATIONS"
part_number: "178"
part_name: "SPECIFICATIONS FOR PACKAGINGS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 5101-5128; 49 CFR 1.81 and 1.97."
cfr_part: "178"
---


# 178.345-12 Gauging devices.

Each cargo tank, except a cargo tank intended to be filled by weight, must be equipped with a gauging device that indicates the maximum permitted liquid level to within 0.5 percent of the nominal capacity as measured by volume or liquid level. Gauge glasses are not permitted.

[Amdt. 178-89, 55 FR 37062, Sept. 7, 1990, as amended by Amdt. 178-118, 61 FR 51342, Oct. 1, 1996]