National Ocean Exploration Act This bill provides statutory authority for the National Ocean Mapping, Exploration, and Characterization Council and revises several programs at the National Oceanic and Atmospheric Administration (NOAA) that support ocean and coastal mapping, hydrographic surveys, and spatial data collection. The bill revises the national ocean exploration program to require NOAA to provide guidance to federal and state agencies, and others, on data standards, protocols for accepting data, and coordination of data collection, compilation, processing, archiving, and dissemination for data relating to ocean exploration and characterization. It also directs NOAA to conduct education and outreach efforts to disseminate information to the public on the discoveries made by the ocean exploration program and coordinate with the outreach strategies of other domestic or international ocean mapping, exploration, and characterization initiatives. Additionally, the bill repeals the undersea research program of NOAA. It also modifies NOAA's ocean and coastal mapping program to include ecosystem approaches in decision-making for natural resource and habitat restoration, emergency response, and coastal resilience and adaptation. NOAA must develop an integrated ocean and coastal mapping federal funding match opportunity to increase the coordinated acquisition, processing, stewardship, and archival of new ocean and coastal mapping data in U.S. waters. The bill also revises and reauthorizes through FY2026 the hydrographic services program of NOAA.