This paper synthesises the regulatory and legal frameworks of UNCLOS. It encourages the GEF to support actions that account for the diversity of ecosystem services that ABNJ provides to regulating the climate, maintaining and enhancing marine biodiversity, and supporting local livelihoods. Integrated spatial planning and other tools can help to support future actions on ABNJ while strengthening governance arrangements that can address future risks and environmental challenges not aptly covered by current laws and institutional policies.