(A) This code includes a reenactment, in modified form, of existing ordinances which are herein repealed and shall be so interpreted and construed. This code also includes new and additional provisions.
(B) All offices, positions and employments provided for by any existing ordinance herein repealed and those offices, positions and employments which are provided for by this code shall continue without interruption or change, and all the incumbents thereof shall continue without reappointment the same as though this code had not been adopted.
(C) Where any act or thing has been done pursuant to the requirements of any existing ordinance herein repealed, which act or thing done would be a substantial compliance with the requirements of this code, no further performance shall be necessary, except where the acts are required periodically or upon a change of conditions, as herein provided.
(D) The unexpended balance of any appropriation for use by any department of the City which remains at the time of implementation of this code shall remain available for use by such department under this code for the time period as prescribed by law.