Ralf Sudowe (Health Physics and Radiochemsitry) led webinars titled "Alpha Spectrometry" and "Applications in Liquid Scintillation Counting" that were presented to people at the U.S. Department of Energy Carlsbad field office, the National Analytical Management Program, and the U.S. Environmental Protection Agency. More than 450 attendees participated from multiple universities, 28 state agencies, national laboratories, international organizations, and federal agencies including the U.S. Department of Energy, U.S. Department of Agriculture, and the U.S. Geological Survey.