The Coast Guard Office of Commercial Vessel Compliance (CVC) has announced the cancellation of CG-CVC Policy Letter 17-01, issued March 10, 2017 – Use of the Uninspected Towing Vessel (UTV) Decal to Meet Certain Requirements Regarding Issuance of the Initial COI Under Subchapter M, and CG-534 Policy Letter 10-02, issued March 11, 2010 – Existing Systems and Equipment on Uninspected Towing Vessels. 
Source: USCG
Link: Cancellation of CG-CVC Policy Letter 17-01, Use of the UTV Decal to Meet Certain Requirements Regarding Issuance of the Initial COI Under Subchapter M, and CG-543 Policy Letter 10-02, Existing Systems and Equipment on Uninspected Towing Vessels