In the case of riot, infectious or contagious diseases, or other impending danger or any other emergency requiring its immediate operation, an ordinance shall take effect upon the proclamation of the Mayor, and the posting thereof in at least three of the most public places in the city. The emergency notice shall recite the emergency and be passed by a three-fourths vote of the governing body, and entered upon the City Clerk's minutes.
(Neb. RS 16-405) (Prior Code, § 1-708)