In the last post of USCG’s series on Waste Reception Facility regulatory requirements, the Facility Safety Branch staff discusses how MARPOL 73/78 governing waste reception facilities applies to the three different categories of commercial fishing ports.
In 1989 when developing 33 CFR 158, the US Coast Guard estimated that Annex V of MARPOL 73/78 (regulations for the prevention of pollution by garbage from ships) would apply to around 9 million ships, including privately owned recreational craft...
https://safety4sea.com/uscg-waste-reception-facilities-on-fishing-ports/