46 CFR § 151.50-80 - Nitric acid (70% or less).

---
identifier: "/us/cfr/t46/s151.50-80"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 151.50-80 - Nitric acid (70% or less)."
title_number: 46
title_name: "Shipping"
section_number: "151.50-80"
section_name: "Nitric acid (70% or less)."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "O"
subchapter_name: "CERTAIN BULK DANGEROUS CARGOES"
part_number: "151"
part_name: "BARGES CARRYING BULK LIQUID HAZARDOUS MATERIAL CARGOES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1903; 46 U.S.C. 3703; Department of Homeland Security Delegation No. 0170.1."
regulatory_source: "CGFR 70-10, 35 FR 3714, Feb. 25, 1970, unless otherwise noted."
cfr_part: "151"
---


# 151.50-80 Nitric acid (70% or less).

(a) Tanks, cargo piping, valves, fittings, and flanges (where exposed to the acid) must be lined with nitric acid resistant rubber or fabricated from nitric acid resistant stainless steel. See § 151.15-3(f)(2).

(b) During cargo transfer, a water hose must be connected to a water supply, ready for immediate use. Any leakage or spillage of acid must be immediately washed down. This requirement can be met by facilities provided from shore.

(c) Nitric acid contaminated by other chemicals, oils, solvents, etc. may not be transported in bulk without an authorization from the Commandant (CG-ENG).

[CGD 80-001, 46 FR 63280, Dec. 31, 1981, as amended by CGD 82-063b, 48 FR 4781, Feb. 3, 1983; CGD 88-100, 54 FR 40041, Sept. 29, 1989]