AR 601-100 governs eligibility, policy, and administrative procedures for appointing commissioned and warrant officers in the Regular Army.
View AR 601-100 on armypubs.army.mil
It covers citizenship, medical and fitness standards, conscientious objector status, security clearance, age, education, loyalty, character, convictions, and ineligibility. It also addresses Regular Army integration, personnel sources, service obligations, appointment grades, notifications, delays, assignments, and posthumous appointments.
Applicants must prove U.S. citizenship by submitting a notarized birth certificate, certificate of citizenship, certificate of naturalization, an FS 240 (Consular Report of Birth Abroad), an FS 545 (Certification of Birth Abroad of a Citizen of the United States of America), a DS 1350 (Certification of Birth Abroad to U.S. Citizen), a passport, and so on. (paragraph 1-5)
A person is medically qualified if no physical profile designator exceeds 3. (paragraph 1-6)
An individual must not be a conscientious objector. (paragraph 1-7)
An original appointment as a commissioned officer in the RA may be given only to a person who is able to complete 20 years of active commissioned service (ACS) before the persons 62nd birthday (see 10 USC 532(a)(2)). (paragraph 1-9)
An original appointment as a commissioned officer, other than a warrant officers (WOs), in the RA in the basic branches may be given only to a person who has a baccalaureate degree, except Officer Candidate School (OCS) graduates who have completed 90 semester hours of college study and who are able to complete a baccalaureate degree from an accredited educational institution prior to the consideration by the captain promotion board. (paragraph 1-10)