SECTION 1. After the first of September, nineteen hundred and one, all official transportation in the city of Manila, for the heads of Departments and Bureaus, or employees thereof, whether of the Insular Government or the government of the city of Manila, shall be furnished in the following manner and no other:
The Insular Purchasing Agent shall, either from the horses and vehicles the property of the Insular Government which are now on hand, or by purchase, provide quilezes or carromatas and horses and harnesses sufficient to provide for actual official needs of all the Bureaus or Departments, and shall station such vehicles and horses in front of the public buildings in which the Departments or Bureaus are, to be available during office hours for official use. The vehicles shall be in charge of an agent of the Purchasing Agent, who shall, upon application, assign a carromata or quilez for the particular service to be performed.