Applicants must pass a written test that measures their ability to learn the controller's duties. Applicants with experience as a pilot, navigator, or military controller can improve their rating by scoring well on the occupational knowledge portion of the examination. Abstract reasoning and three-dimensional spatial visualization are among the aptitudes the exam measures. In addition, applicants generally must have 3 years of general work experience or 4 years of college, or a combination of both. Applicants also must survive a 1 week screening at the FAA's Aeronautical Center Academy in Oklahoma City which includes aptitude tests using computer simultors, physical and psychological examinations.
Successful applicants receive drug screening tests.
For airport tower and enroute center positions, applicants must be less than 31 years old. Those 31 years old and over are eligible for positions at flight-service stations. Controllers must be articulate, because directions to pilots must be given quickly and clearly. Intelligence and a good memory also are important because controllers constantly receive information that they must immediately grasp, interpret, and remember. Decisiveness is also required because controllers often have to make quick decisions.