15 ILCS 5/1

(15 ILCS 5/1) (from Ch. 127, par. 63b122)

Sec. 1.

(a) In the event that the Governor, for any of the reasons
specified in Article V, Section 6 of the Constitution of the State of Illinois,
is not able to exercise the powers and discharge the duties of his office,
such powers and duties of the office shall be exercised by the officer next
in line of succession, in the order named as follows:

    (1)  The Lieutenant Governor;
    (2)  The elected Attorney General;
    (3)  The elected Secretary of State;
    (4)  The elected Comptroller;
    (5)  The elected Treasurer;
    (6)  The President of the Senate;
    (7)  The Speaker of the House of Representatives.

(b) The officer next in line of succession shall serve as Governor for
the remainder of the term if he succeeds to the office by reason of death,
conviction on impeachment or resignation of the Governor.  If he succeeds
to the office by reason of temporary disability or failure to qualify by
the Governor, he shall serve until the Governor qualifies or the disability
is removed.  An officer who succeeds to the office of Governor by reason
of temporary disability of the Governor shall be designated Acting Governor.

(c) If an officer next in line of succession shall fail to qualify or
if his office is vacant, then the officer next in line of succession after
him who is qualified shall serve as Governor.

(Source: P.A. 82-105.)