US HB663

Directs the President to instruct U.S. representatives at international organizations to call for a moratorium on deep seabed mining permits and oppose investments or financing for such activities

Requires Presidential certification to Congress before lifting opposition, confirming that the International Seabed Authority has promulgated mining regulations based on scientific consensus and ensuring effective marine environment protection

Mandates a report to Congress detailing the International Seabed Authority's regulations, scientific consensus on risks to ocean ecosystems, and methods ensuring marine environmental protection

Cites UN Sustainable Development Goal 14 and findings that deep seabed mining poses major risks including species loss, sediment plumes affecting ecosystems, noise pollution, contamination of food fish, and negative impacts on carbon sequestration

References the 2022 UN Environment Programme report stating deep seabed mining financing is inconsistent with Sustainable Blue Economy Finance Principles