Individuals responsible for performing CT exams are called radiographers or radiologic technologists. Radiologists and radiographers are among the earliest occupational groups exposed to radiation. Radiographic exams are usually performed by radiographers. Applications from other professionals such as nurses, radiographers and paramedics will also be considered. Accredited radiographers, sonographers, or other professionals are required to pass a mandatory exam. Some radiographers also specialise in image interpretation. The SCoR is the professional body and union for UK radiographers. Radiographers often have opportunities to enter military service due to their role in healthcare. UK radiographers are eligible for membership of the Society & College of Radiographers.