Complete this section to certify you have been lawfully engaged in the practice of the profession for which you are applying. The State of Illinois has easy, fillable forms you may use for certain matters.Click here to view or use the Standardized State Forms. In order to be considered for licensure in Illinois, an applicant must have completed a 6 year postsecondary course of study comprising of:. To begin the application process, submit the online Pre-Employment Application Form. The form allows you to pick a cadet applican testing date. WHO MAY APPLY: Must be a current member of the Illinois Army National Guard within the grade(s) of O3(P) and O4. WHO MAY APPLY: Must be a current member of the Illinois Army National Guard within the grade(s) of O3(P) and O4. Illinois 4page Medical Application Form. Complete the appropriate 4-page application.