NINTH COAST GUARD DISTRICT

Guardians of the Great Lakes

Inspections and Investigations Branch (dpi)

The Inspections and Investigations Branch provides regional oversight to the following programs:

• Safety, security, and marine environmental protection inspections
• Port State control programs
• Investigation of marine casualties and accidents
• Oversight and coordination for controlling the introduction of aquatic invasive species into the Great Lakes or Western Rivers system.

Welcome to the Great Lakes Flyer - click one: (viewable) / (printable)

Active Marine Safety Information Bulletins

2025
001-25	Guidance Regarding the Use of Shaft or Engine Power Limitation on the Great Lakes
002-25	Visual Distress Signal Alternatives and Disposal of Pyrotechnic Flares
003-25	Irishtown Bend Stabilization and Rehabilitation on the Cuyahoga River

2024
001-24	Shipyard Safety Rescue Teams: Protecting People and Great Lakes Vessels
002-24	Safely Navigating the April 8, 2024 Solar Eclipse on the Great Lakes
003-24	Unmanned Autonomous Watercraft Awareness

2023
001-23	Ballast Water Management System Incompatibility Issues in the Great Lakes
002-23	Guidance for Passenger Vessel Charter Operations
003-23	Guidance for Facilities that Transfer Oil/Hazardous Materials in Bulk
004-23	Great Lakes Ballast Water Reporting Requirements
005-23	Updated Marine Radio Inspection Regulations for Great Lakes Vessels
006-23	Commercial Vessel Marine Casualty Unintended Grounding Reporting Requirements

2022
001-22	Great Lakes Load Lines and Single Voyage Load Lines

2021
001-21	Great Lakes Winter Layup (Inactive Status) Survey

2019
001-19	Fixed Fire Extinguishing System Servicing Safety in the Great Lakes Fleet
004-19	CG Examinations of Canadian Freight Vessels Operating Exclusively on the Great Lakes

2018
001-18	Improper Repair of Immersion Suits
002-18	Marine Casualty Property Damage Threshold Increases

2016
001-16	Electrical Systems

2014
001-14	Uninspected Passenger Vessel Documentation Enforcement

2013
001-13	Compliance with International Convention on the Control of Anti-Fouling Systems on Ships

Monday through Friday
8:00 AM to 4:00 PM EST
(except Federal Holidays)

After Hours
(216) 902-6117

General Information
(216) 902-6050

Towing Vessels
(216) 902-6343

Passenger Vessels
(216) 902-6052

Port Security/Facilities
(216) 902-6127

Ninth Coast Guard District
Inspections and Investigations Branch (dpi)
Anthony J. Celebrezze Federal Building
Room 2047
1240 East Ninth Street
Cleveland, OH 44199

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