TVIB News MSIB-Marine Safety Information Bulletin

USCG: D8 MSIB 18-01 USCG OCMI Contact List: Subchapter M External Notifications


The USCG Eighth District published MSIB 18-01: Coast Guard Officer in Charge, Marine Inspection (OCMI) Contact List: Subchapter M External Audit Notifications

Purpose: In accordance with 46 CFR §138.500(a), the owner or managing operator of a towing vessel must notify the local OCMI at least 72 hours prior to an external audit conducted under this part. Third Party Organizations (TPOs) and towing vessel owner/operators are encouraged to use the below contacts for submitting external audit notifications. 

Click here to download USCG D8 MSIB: 18-01


USCG: MSIB 13-18: Special Considerations for Sub M – Flammable/Combustible Storage Cabinets


USCG Sector Houston-Galveston issued MSIB 13-18: Special Considerations for Subchapter M Regulations – Flammable/Combustible Storage Cabinets. This MSIB addresses requests related to existing aluminum constructed flammable/combustible storage cabinets and the circumstances that Sector Houston-Galveston will consider them as meeting the requirements of 46 CFR 142.225 when issuing a COI to an inspected towing vessel (ITV).

Click here to read MSIB 13-18 from USCG Sector Houston-Galveston

MSIB – Acceptable U.S. Ballast Water Management Methods vs. BWM Convention Methods


The U.S. Coast published MSCI No.: 007-17 Acceptable U.S. Ballast Water Management Methods vs. BWM Convention Methods.

The purpose of this bulletin is to remind masters, owners/operators, agents and persons-in-charge of vessels that the United States is not signatory to the International Convention for the Control and Management of Ship’s Ballast Water and Sediment (BWM Convention) and that vessels discharging ballast water (BW) into the waters of the U.S. must comply with the requirements of 33 CFR 151 Subparts C and D.

Non-recreational vessels, U.S. and foreign, that are equipped with ballast tanks are required to comply with the U.S. ballast water regulations provided in Title 33 Code of Federal Regulations (CFR) Part 151 Subparts C & D when operating in the waters of the United States, except as expressly provided in 33 CFR 151.2015 & 151.2020.

Click here to download MSIB 007-17 in full.