exam is six hours long, and can only be taken after having passed Part I, or immediately after having taken Part I the week before. It is given on the Monday of the Health Physics Society's annual meeting, and on the same day at other locations throughout the country. After passing Part I, the applicant must pass Part II within a period of seven years, or retake both parts. If a candidate scores particularly poorly on Part II, he or she will be barred from taking it the following year. Both parts include all of the topics below, but Part II requires candidates to answer only six mandatory questions and four of eight topic area questions. Examination topics Atomic structure/Radioactivity/Radioactive decay Interaction of radiation with matter Internal dosimetry/Internal dose calculations Biological effects of ionizing radiation NRC, OSHA, Regulations/Standards ICRU, ICRP, NCRP Radiation Risk, BEIR III, IV, V, VI External dose calculations/External dosimetry Statistics Instrumentation Low Level Wastes, Fuel Cycle, DOT Regulations Shielding and Activation Air sampling/Modeling/Environmental Health Physics Medical Health Physics and X-ray Protection Reactor Health Physics/Criticality Accelerator Health Physics Lasers, UV, Microwave, RF Radon Exam reference sources Health Physics Topics Johnson, T.E. (2017). Introduction to health physics. Introduction to health physics. Johnson, T.E. & Birky, B.K. (1998). Health Physics and Radiological Health. Knoll, G.F. (1979). Radiation Detection and Measurement. Turner, J.E. (2007). Atoms, Radiation, and Radiation Protection. Part I Bevelacqua, J.J. (1999). Basic Health Physics: Problems and Solutions. ABHP Part I Question and Solutions Part II Bevelacqua, J. J. (2009). Contemporary health physics: Problems and Solutions. Turner, J.E. (1988). Problems and Solutions in Radiation Protection. American Board of Health Physics ABHP Part II Question and Solutions References External links American Board of Health Physics Health Physics Society Medical physics Professional certification in science Health physicists