Assignment to duty in any unit shall be by order of the Commander-in-Chief. The validity of all commissions shall be subject to formal acceptance and the execution of oath of office prescribed by law.
20 ILCS 1805/38
Commissions to officers shall read to a certain grade in a given branch or corps
Laws 1957, p. 2141.
Official source: Illinois General Assembly. Reproduced from public-domain Illinois statutes; confirm against the official source for the current text. Not legal advice.