In the event that the Chief of the Division of Fire determines that an extraordinary emergency exists which requires additional hours of service by members of the Division of Fire, he shall report such determination and make his recommendation to the Mayor. In such event, and to the extent the Mayor concurs, the Mayor is authorized and empowered to so find and declare and to thereupon require members of the Division of Fire to work on any of the above stated holidays without allowance of time in lieu thereof.
   Any such action shall become effective upon the posting, on the bulletin board in the headquarters of the Division of Fire, of a notice signed by the Mayor and shall continue until notice of termination is similarly posted. In case of any such action, the Mayor shall fully report the fact thereof and the reasons therefor to Council at its first regular meeting next following such action.  (Ord. 4718.  Passed 1-15-51.)