TVIB News Subchapter M Updates

USCG: SUB M – Pilot House Alerter and Towing Machinery Requirements

Originally posted on Coast Guard Maritime Commons on 09/22/2022

The Office of Commercial Vessel Compliance (CG-CVC) would like to remind all Subchapter M – Towing Vessel owners and operators that while the phase-in allowance to get your Certificate of Inspection (COI) has past, as of July 19, 2022, there are some other requirements for existing vessels that are a prerequisite prior to obtaining the next Renewal COI.  In accordance with 46 Code of Federal Regulations (CFR) §143.200(c) no later than 5 years after the issuance of the first COI for the vessel, all existing towing vessels inspected under Subchapter M must meet the Pilothouse Alerter (46 CFR §143.450) and Towing Machinery requirements (46 CFR §143.460).

Failure to meet these requirements could result in issuance of a CG-835V vessel deficiency and possibly non-renewal of the 5 year COI per 46 CFR §136.215.

If you have any questions regarding the requirement noted above, or an inspection for your towing vessel, please seek your local Officer in Charge, Marine Inspection.  For any questions regarding this blog post, please contact




SUB M: Letter from RDML Arguin to TVIB

TVIB is only as strong as its members which is made up of our TPO customers, certified auditors and surveyors, and our supporting organizations.  Thank you all for being a part of the successful implementation of Subchapter M to usher in the inspected towing vessel regulations. We owe a big thank you to our TVIB staff that work diligently every day to support our mission, our customers and the U.S. Coast Guard in our efforts.

The attached letter was presented to TVIB leadership yesterday, signed by Admiral Arguin. This is something we can all be very proud of.

Click here to download.

TRAINING: Final Call for Registration – Next Week’s MILA and CAPA Courses

ACTSafe Training will be conducting two separate courses next week:

  • Marine Internal Lead Auditor (MILA) 9/20 to 9/21- register
  • Corrective Action and Preventive Action (CAPA) 9/22 – register

Both will be taught in a virtual format and you may enroll in either or both courses.  Check out the registration links above for course descriptions and details.

The deadline to register is this Friday, September 16th.