(20 ILCS 1815/3-5)
(a) The State Guard shall be comprised of commissioned officers, warrant officers, and enlisted personnel in grades conforming to those of the United States Army and Air Force. The Adjutant General shall establish by regulation the qualifications for appointment, enlistment, service, and promotion in the State Guard including, but not limited to, minimum and maximum age, education, physical condition, and personal conduct.
(b) The Governor shall appoint all commissioned and warrant officers of the State Guard in a manner similar to appointments made in the Illinois National Guard. Officers shall take the following oath as a condition of appointment: "I do solemnly swear (or affirm) that I will bear true allegiance to the Constitution of the United States and to the Constitution of the State of Illinois, and to the laws thereof, and that I will faithfully obey the orders of the Commander-in-Chief and the officers appointed above me, and the rules and regulations of the Illinois State Guard. (So help me God.)" Appointments in the State Guard shall be for an indefinite term and subject to death, resignation, discharge, retirement, or termination in accordance with State law and regulation.
(c) Persons accepted for enlistment in the State Guard shall, as a condition of enlistment, take the same oath as officers. The Adjutant General shall prescribe by regulation the form of enlistment contracts. Original terms of enlistment shall be limited to 2 years. Re-enlistment terms shall be limited to one year.
(d) In accordance with regulations prescribed by the Adjutant General, upon an officer's separation from the State Guard, the Adjutant General shall characterize the officer's service as honorable, general (under honorable conditions), or under conditions other than honorable using criteria that are in general conformity with those regulations or instructions of the United States Army and Air Force that are applicable to the National Guard, unless the officer was separated with a punitive discharge under the Illinois Code of Military Justice.
(e) The Adjutant General may mobilize on State Active Duty members of the Illinois National Guard as he or she determines necessary to administer, train, or command the State Guard.
(Source: P.A. 100-1030, eff. 8-22-18.)