TOF’s Potentially Polluting Wrecks (PPWs) Project seeks to engage the IMO, and other UN units in addressing PPWs. In particular, it aims to have IMO members develop standards to address threats from PPWs in a manner consistent with the UNESCO 2001 Convention. PPWs from WWI are already UCH.  Many others are historic WWII wrecks that will start becoming UCH in 2039. Phase 1 of this project entitled “Threats to Our Ocean Heritage” was funded by the Lloyd’s Register Foundation. UNESCO’s IOC endorsed it in 2023 as an activity of the UN Decade of Ocean Science for Sustainable Development. Phase 1 resulted in three open access books on Threats to Our Ocean Heritage: 1) Bottom Trawling, 2) Deep Sea Mining, and 3) PPWs. There were also three workshops on developing a framework for international standards to address threats from PPWs led by the Waves Group with assistance from TOF.  A fourth meeting, led by TOF, on a strategy for engaging the UN and/or its units. This resulted in the Malta Manifesto and a Joint ICOMOS and IUCN Resolution that successfully engaged UNEP for this work including trying to engage the IMO, and UNESCO.  In Phase 2 TOF will continue to focus on engaging UN units in developing international standards, guidelines, or a tool kit for nations to address threats from PPWs. TOF will also focus on facilitating the development of an international fund to assist nations in addressing these threats, while the WG focuses on a demonstration project.