Section 30.  
The Division of Public Buildings and Grounds shall be in charge of a Commissioner of Public Buildings, who shall have supervision of all buildings, and grounds in connection therewith, owned, controlled or leased by the City and used for public affairs, except as otherwise provided in this Charter. The Commissioner of Public Buildings shall provide the necessary labor and supplies for such buildings and grounds and shall have charge of the maintenance, improvement and repair of all such City owned, controlled or leased buildings, and shall make, with the approval of the Mayor, such rules and regulations as are necessary for their conduct and operation.
   The Commissioner of Public Buildings shall act as custodian of the City Building, the Central Police Station, and such other public buildings as may be hereafter acquired by the City.
(Amended November 4, 2003.)