755 ILCS 35/9.5: Operation of living will.

Subject to Section 3.5 and Section 9(l), a declaration under this Act becomes operative when all of the following conditions have been met:

(1) it has been validly executed;

(2) it has not been revoked in accordance with Section 5;

(3) the patient is unable to give directions regarding the use of life-sustaining or death delaying procedures; and

(4) the patient is a qualified patient.

An operative and unrevoked living will declaration continues in effect until revoked in accordance with this Act.