This policy letter provide guidance to the Officer(s) in Charge, Marine Inspection (OCMI) and Coast Guard marine inspectors as well as the towing industry on how to obtain initial COIs for greater than the percentage of the towing vessels outlined in 46 CFR 136.202 of 46 CFR Subchapter M.
Source: Domestic Vessels
Link: 6/15/2017: New policy letter on Subchapter M implementation