33 C.F.R. § 150.805
What reports must be sent both to a classification society and to the Coast Guard?
The licensee must submit to the Sector Commander, or to the MSU Commander, with COTP and OCMI authority a copy of each report submitted to an authorized classification society, as defined in 46 CFR 8.100, for maintenance of a single point mooring's class under the rules of that society.