49 CFR § 176.140 - Segregation from other classes of hazardous materials.
---
identifier: "/us/cfr/t49/s176.140"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 176.140 - Segregation from other classes of hazardous materials."
title_number: 49
title_name: "Transportation"
section_number: "176.140"
section_name: "Segregation from other classes of hazardous materials."
chapter_name: "PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "C"
subchapter_name: "HAZARDOUS MATERIALS REGULATIONS"
part_number: "176"
part_name: "CARRIAGE BY VESSEL"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 5101-5128; 49 CFR 1.81 and 1.97."
regulatory_source: "Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, unless otherwise noted."
cfr_part: "176"
---
# 176.140 Segregation from other classes of hazardous materials.
(a) Class 1 (explosive) materials must be segregated from other packaged hazardous materials in accordance with § 176.83.
(b) Class 1 (explosive) materials must be segregated from bulk solid dangerous cargoes in accordance with the IMDG Code (IBR, see § 171.7 of this subchapter). Notwithstanding § 176.83(b), ammonium nitrate and sodium nitrate may be stowed together with blasting explosives, except those containing chlorates, provided the mixed stowage is treated as blasting explosives (see § 176.410(e)).
[Amdt. 176-30, 55 FR 52696, Dec. 21, 1990, as amended at 68 FR 45041, July 31, 2003; 68 FR 75748, Dec. 31, 2003]