Subchapter M

[DirtyCoast]

I found a PowerPoint from AWO entitled Subchapter M: What you need to know.

Applicability: All US flagged towing vessels
Exceptions:

• Vessels less than 26 ft in length unless moving a barge carrying oil or hazmat
• Assistance towing vessels
• Workboats operating within worksite
• Sea going tugs greater than 300 GRT
• Other inspected vessels that perform occasional towing