If in the event of a civil emergency or sickness or injury incident, any officer named in ACC 2.80.030(A) is unavailable, the emergency interim successor highest in rank in order of succession who is available shall, except for the power and duty to appoint emergency interim successors, exercise the powers and discharge the duties of such officer. An emergency interim successor shall exercise these powers and discharge these duties only until such time as the lawful incumbent officer or an emergency interim successor higher in rank in order of succession exercises, or resumes the exercise of, the powers and discharge of the duties of the office, or until, where an actual vacancy exists, a successor is appointed to fill such vacancy or is elected and qualified as provided by law. (Ord. 3955 § 4, 1984.)