The NOAA Office of Ocean Exploration and Research (OER) is soliciting ocean exploration proposals to address knowledge gaps and support growth in the Nation’s Blue Economy and/or to contribute to Seabed 2030 goals. Proposals are being requested on the following three topics: 1. OCEAN EXPLORATION. Ocean exploration to inform management, sustainable use, and conservation of marine resources in poorly explored deep ocean areas of the U.S. Exclusive Economic Zone. Areas proposed for exploration and/or initial characterization must be at a minimum depth of 200 meters. 2. MARINE ARCHAEOLOGY. Discovery and characterization of underwater cultural heritage representing past marine-based economic activities or early human occupation to inform decisions on preservation and seabed use, and to identify sources of potential environmental impacts. Marine archaeology proposals can be conducted in any water depth. 3. TECHNOLOGY. Application of new or novel use of existing ocean technologies or innovative methods that increase the scope and efficiency of acquiring ocean exploration data and improve usability of and access to ocean exploration data. Proposed technologies must be applicable to water depths of 200 meters or greater, though testing in shallower water or lab-based test facilities will be supported. The deadline for the pre-proposal submission is May 24, 2019.