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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

  • Foster dialog between the Coast Guard and towing vessel stakeholders.
  • Help ensure consistent regulatory application through towing vessel training and guidance.
  • Provide towing vessel inspection support.
  • Gather, organize, and provide statistical information.

What's New

09/20/2019:  The Subchapter M FAQ page has been updated to reflect current policy and guidance for implementation of 46 CFR Subchapter M.

09/20/2019: The Coast Guard announced in the Federal Register the availability of Navigation and Vessel Inspection Circular (NVIC) 01-16 Change 2, “Use of Electronic Charts and Publications in Lieu of Paper Charts, Maps and Publications,” together with a Deregulatory Savings Analysis. This NVIC provides that U.S. vessels may access navigation publications electronically, through underway connectivity, to meet domestic carriage and Safety of Life at Sea certification requirements.

08/28/2019:  The Coast Guard's Office of Commercial Vessel Compliance (CVC) has issued Work Instruction 015(1). The purpose of the work instruction is to set forth the interpretations of when a vessel’s keel is considered to be laid or the vessel is at a similar stage of construction, and provides guidelines for determining what may be accepted for the purpose of establishing a vessel’s keel laid date.

08/05/2019:  The Coast Guard has approved Inland Towing Operators Working Together (ITOW) 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.