Section 454. Officials of the City Government. —

1. There shall be in each city a mayor, a vice-mayor, sangguniang panlungsod members, a secretary to the sangguniang panlungsod, a city treasurer, a city assessor, a city accountant, a city budget officer, a city planning and development coordinator, a city engineer, a city health officer, a city civil registrar, a city administrator, a city legal officer, a city veterinarian, a city social welfare and development officer, and a city general services officer.

2. In addition thereto, the city mayor may appoint a city architect, a city information officer, a city agriculturist, a city population officer, a city environment and natural resources officer, and a city cooperatives officer.

   The appointment of a city population officer shall be optional in the city: Provided, however, That cities which have existing population offices shall continue to maintain such offices for a period of five (5) years from the date of the effectivity of this Code, after which said offices shall become optional.

3. The sangguniang panlungsod may:

   1. Maintain existing offices not mentioned in subsections (a) and (b) hereof;

   2. Create such other offices as may be necessary to carry out the purposes of the city government; or

   3. Consolidate the functions of any office with those of another in the interest of efficiency and economy.

4. Unless otherwise provided herein, heads of departments and offices shall be appointed by the city mayor with the concurrence of the majority of all the sangguniang panlungsod members, subject to civil service law, rules and regulations. The sangguniang panlungsod shall act on the appointment within fifteen (15) days from the date of its submission, otherwise the same shall be deemed confirmed.

5. Elective and appointive city officials shall receive such compensation, allowances, and other emoluments as may be determined by law or ordinance, subject to the budgetary limitations on personal services prescribed under Title Five, Book II of this Code: Provided, That no increase in compensation of the mayor, vice-mayor and sangguniang panlungsod members shall take effect until after the expiration of the full term of the said local officials approving such increase.