In accordance with the authority in DoD Directive 5124.02, "Under Secretary of Defense for Personnel and Readiness (USD(P&R))" (available at http://www.dtic.mil/whs/directives/corres/pdf/512402p.pdf), this part:
(a) Updates established policies and responsibilities for basic entrance qualification standards for enlistment, appointment, and induction into the Military Services and delegates the authority to specify certain standards to the Secretaries of the Military Departments.(b) Establishes the standards for age, aptitude, citizenship, dependents, education, medical, character/conduct, physical fitness, and other disqualifying conditions, which are cause for non-qualification for military service. Other standards may be prescribed in the event of national emergency.(c) Sets standards designed to ensure that individuals under consideration for enlistment, appointment, or induction are able to perform military duties successfully, and to select those who are the most trainable and adaptable to Service life.