49 CFR § 177.839 - Class 8 (corrosive) materials.
---
identifier: "/us/cfr/t49/s177.839"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 177.839 - Class 8 (corrosive) materials."
title_number: 49
title_name: "Transportation"
section_number: "177.839"
section_name: "Class 8 (corrosive) materials."
chapter_name: "PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "C"
subchapter_name: "HAZARDOUS MATERIALS REGULATIONS"
part_number: "177"
part_name: "CARRIAGE BY PUBLIC HIGHWAY"
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; sec. 112 of Pub. L. 103-311, 108 Stat. 1673, 1676 (1994); sec. 32509 of Pub. L. 112-141, 126 Stat. 405, 805 (2012); 49 CFR 1.81 and 1.97."
cfr_part: "177"
---
# 177.839 Class 8 (corrosive) materials.
(See also § 177.834(a) through (j).)
(a) *Nitric acid.* No packaging of nitric acid of 50 percent or greater concentration may be loaded above any packaging containing any other kind of material.
(b) *Storage batteries.* All storage batteries containing any electrolyte must be so loaded, if loaded with other lading, that all such batteries will be protected against other lading falling onto or against them, and adequate means must be provided in all cases for the protection and insulation of battery terminals against short circuits.
[Amdt. 177-87, 61 FR 27175, May 30, 1996]