(A) (1) The Company Officers (Captains) shall be selected upon their ability to meet the following requirements:
(a) Their knowledge of firefighting; and
(b) Their knowledge of rescue techniques and equipment.
(2) Their duties shall be to assist the Fire Chief and Assistant Chief in the performance of their duties.
(B) The Senior Officer (Captain) shall be the individual with the greatest number of years with the Department.
(C) In the absence of the Fire Chief and Assistant Chief, the Senior Officer shall command the Department and be responsible in all aspects with the full power and responsibilities of the Fire Chief during an emergency.