Walt Cofer is President of Radiation Control, Inc., a radiation safety consulting firm based in Tallahassee, Florida that specializes in industrial radiation applications. He started out as an industrial radiographer and RSO, then spent 16 years as an industrial health physics specialist/regulator at the Florida Bureau of Radiation Control. In 2004, he returned to the private sector to provide radiation safety training and consulting services to government, education and commercial clients. He has consulted for the International Atomic Energy Agency, the National Nuclear Security Administration, and the World Institute for Nuclear Security. He is an ASNT-certified industrial radiographer (X-ray and Isotope), a certified DOT/hazmat specialist, and a certified trainer. He is also a long-time member of ASNT and the Health Physics Society.