A NOAA Corps officer (Ret.) specializing in nautical charts and maritime navigation provides expert witness support with more than 35 years of experience in hydrography, chart and Coast Pilot compilation, and navigational data systems. His work focuses on the development and application of nautical charts and United States Coast Pilots as authoritative navigation resources, with experience consulting on matters involving boating accidents and navigational safety. His background includes collection, processing, and integration of hydrographic data such as water depths, shoreline features, aids to navigation, hazards, currents, tides, and federal navigation regulations, along with quality assurance practices aligned with NOAA standards. He has served as a navigation manager overseeing charting operations and has completed multiple sea assignments aboard oceanographic vessels, with additional coordination alongside the U.S. Coast Guard, U.S. Army Corps of Engineers, and harbor safety committees. He holds a Master of Science in Oceanography (Hydrography) and a Bachelor of Science in Oceanography, supporting his expertise in marine surveying, charting standards, and navigational safety.