In this subchapter:
(1) "Emergency" means any of the following:
(A) an attack on the United States, a state, or a political subdivision of a state;
(B) a nuclear or atomic disaster;
(C) the occurrence of a catastrophic event, including:
(i) an epidemic or pandemic;
(ii) a hurricane, tropical storm, tornado, or other weather condition; or
(iii) a riot or civil disturbance;
(D) the declaration of a national emergency by the United States government;
(E) the declaration of an emergency by a state or a political subdivision of a state; or
(F) any other similar emergency situation.
(2) "Emergency action" means an action taken by majority vote of the governing persons present at a meeting of the governing authority of a domestic entity during an emergency period.
(3) "Emergency period" means any period during which the governing authority of a domestic entity, due to a condition that is a part of or results from an emergency, is unable to satisfy one or more requirements of the entity's governing documents or this code necessary for action by vote at a meeting of the governing authority outside of an emergency period.