20 ILCS 1815/4-10: Uniforms.

(a) Uniforms for the State Guard shall be in general conformity with those of the Illinois National Guard, except that members of the State Guard shall wear the designation "IL" on their class A/service dress and the designation "Illinois State Army Guard", "Illinois State Air Guard", or "Illinois" on their class C/utility uniforms.

(b) Officers shall pay for their uniforms. Enlisted members shall be issued uniforms in accordance with regulations prescribed by the Adjutant General and subject to the availability of State funds.

(c) Officer and enlisted rank insignia shall be in conformity with those of the Illinois National Guard.