(65 ILCS 5/11-1-6) (from Ch. 24, par. 11-1-6)
    Sec. 11-1-6. The corporate authorities of each municipality may by ordinance grant to the mayor the extraordinary power and authority to exercise, by executive order, during a state of emergency, such of the powers of the corporate authorities as may be reasonably necessary to respond to the emergency. Such ordinance shall establish standards for the determination by the mayor of when a state of emergency exists, and shall provide that the mayor shall not exercise such extraordinary power and authority except after his signing, under oath, a statement finding that such standards have been met, setting forth facts to substantiate such findings, describing the nature of the emergency, and declaring that a state of emergency exists. Such statement shall be filed with the clerk of the municipality as soon as practicable. A state of emergency, declared as provided in this section, shall expire not later than the adjournment of the first regular meeting of the corporate authorities after the state of emergency is declared.
(Source: Laws 1968, p. 80.)