Stay Informed!
Coast Guard Maritime Commons Feed:


Your Online Hub for Subchapter M
TugSafe TugSafe


Inspected Towing Vessel Decision Aid
Frequently Asked Questions Frequently Asked Questions

Frequently Asked Questions

46 CFR Subchapter M (Last Updated 05/29/2018)
Subchapter M Subchapter M

Final Rule

46 CFR Subchapter M

What We Can Do For You

  • Gather, organize and provide statistical information.
  • Foster dialog between the Coast Guard and industry.
  • Research towing vessel issues.
  • Help ensure high level of consistency through training and policy guidance.
  • Train towing vessel examiners.
  • Provide onsite assistance.

What's New

05/09/2019:  As a reminder, on or before July 22, 2019, owners and managing operators of Subchapter M towing vessels must implement a Health and Safety Plan (HSP) and the associated recordkeeping procedures regardless of whether or not the vessel has been issued a Certificate of Inspection (COI).  Requirements include general health and safety procedures, identification and mitigation of health and safety hazards, and health and safety training for crewmembers and non-crewmembers.  There is no requirement to submit the HSP to the Coast Guard or a TPO for approval; however, the HSP is subject to review during inspections and audits.  Minimum health and safety requirements can be found in 46 CFR Part 140 Subpart E and TugSafe Central.

04/09/2019:  The Third-Party Organization webpage has been updated to reflect current auditor/assessor courses recognized by the Coast Guard as equivalent to an ANSI/ISO/ASQ Q9001-2000 or ISO 9001:2008(E) lead auditor/assessor course for the purposes of 46 CFR 138.310(d)(2) and 46 CFR 139.130(b)(3).

11/07/2018:  The Coast Guard has approved Engineering Design & Testing (EDT) as a third-party organization (TPO) to carry out certain functions in accordance with Subchapter M.  A complete list of all nine Coast Guard approved TPOs can be found on the Coast Guard Approved TPOs webpage.

10/03/2018:  The special consideration guidance in TugSafe Central has been updated. The new guidance can be found in the Appeals and Alternate Compliance Options section of TugSafe Central.