Dr. Maher attended Lowell Technological Institute, Lowell, Massachusetts, where he earned a bachelor's of science in electrical engineering and was commissioned in the United States Air Force in 1971. He received a master's degree in biomedical engineering from Worcester Polytechnic Institute, Worcester, Massachusetts and entered active military service in 1973. In 1985, Dr. Maher earned a doctor of science degree in radiological protection and health from the Harvard School of Public Health. His principle research areas were radon measurement and control of radon in residences, environmental aerosol physics, and biostatistics. Upon completion of his doctoral studies, he was assigned to the USAF Occupational and Environmental Health Laboratory, Brooks AFB, Texas to variety of positions that included: Chief, Nonionizing Radiation; Chief, Radioanalytical Services; Chief, Personnel Dosimetry; and Chief, Radiation Services Division. In these positions, Dr. Maher provided a wide range of health physics support services to worldwide USAF installations. These support services included: environmental, medical and occupational radiological protection consultation and field investigations; radioanalytical laboratory services; radiation dosimetry; radioactive source permitting and transportation safety; site characterization and remediation; and radiological accident contingency response planning and risk assessment. In 1990, Dr. Maher was assigned to the Human Systems Center, Armstrong Laboratory, Brooks AFB, Texas. In this capacity, he was the overall director of comprehensive environmental and occupational health services support to worldwide USAF installations. The Division's specialty areas were air and water quality, medical, environmental, and occupational health physics; hazardous waste and material management; and environmental noise research. Dr. Maher retired from active military service on January I, 1994 in the grade of colonel. Following his military retirement, Dr. Maher joined Arthur D. Little, Inc., in Cambridge, Massachusetts as an Associate Director in Occupational Safety and Health, and Manager for the Radiation Policy and Technology Unit. In early 1996, Dr. Maher accepted the position as Director of the Environmental Laboratory for Yankee Atomic Electric Company. The laboratory provided ongoing environmental laboratory, remediation and consultative health physics services for commercial nuclear power, Department of Energy and Department of Defense clients. In 2001, Dr. Maher assumed the position of Manager, Environmental Health and Safety for Framatome-ANP in Marlborough, Massachusetts. In 2004, Dr. Maher joined Dade Moeller & Associates and is currently the Objective 3 Manager for the NIOSH Dose Reconstruction Project under the Energy Employees Occupational Illness Compensation Program Act (EEOICPA). Dr. Maher was certified for comprehensive practice by the American Board of Health Physics (ABHP) in June 1986, and has since recertified in 1990, 1994, 1998, 2002 and 2006. Dr. Maher is a past Board Member of the ABHP and the Board Chairman in 2000. He served on the ABHP Panel of Examiners for the Part II Comprehensive Examination from 1989-1993, and was the Panel Chairperson in the 1992 exam year. He is a Past President of the American Academy of Health Physics (AAHP) and the New England Chapter of the Health Physics Society (NECHPS). He is a Fellow of the Health Physics Society (HPS), a past Director and Secretary for the HPS and the Society's current President. Dr. Maher is also an adjunct faculty member at the Harvard School of Public Health (HSPH) and a faculty member at the HSPH Center for Continuing Professional Education.