49 CFR § 176.162 - Security.

---
identifier: "/us/cfr/t49/s176.162"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 176.162 - Security."
title_number: 49
title_name: "Transportation"
section_number: "176.162"
section_name: "Security."
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"
---


# 176.162 Security.

A responsible person must be present at all times when the hatches of spaces containing Class 1 (explosive) materials are open. No unauthorized person may be permitted to access spaces in which Class 1 (explosive) materials are stowed. Magazines must be secured against unauthorized entry when loading has been completed, or when loading or unloading is stopped. Packages containing Class 1 (explosive) materials may not be opened on board ship.