46 CFR § 5.15 - Investigating Officer.

---
identifier: "/us/cfr/t46/s5.15"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 5.15 - Investigating Officer."
title_number: 46
title_name: "Shipping"
section_number: "5.15"
section_name: "Investigating Officer."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "A"
subchapter_name: "PROCEDURES APPLICABLE TO THE PUBLIC"
part_number: "5"
part_name: "MARINE INVESTIGATION REGULATIONS—PERSONNEL ACTION"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 2103, 7101, 7301, 7701; DHS Delegation 00170.1, Revision No. 01.2."
regulatory_source: "CGD 82-002, 50 FR 32184, Aug. 9, 1985, unless otherwise noted."
cfr_part: "5"
---


# 5.15 Investigating Officer.

An *investigating officer* is a Coast Guard official designated by the Commandant, a District Commander, or the Officer in Charge, Marine Inspection, for the purpose of conducting investigations of marine casualties or matters pertaining to the conduct of persons applying for or holding merchant mariner's documents, licenses, certificates or credentials issued by the Coast Guard. An Officer in Charge, Marine Inspection is an investigating officer without further designation.

[USCG-2006-25535, 71 FR 48482, Aug. 21, 2006]