the estimated amount of such expenditure has been set aside for its liquidation. [820-1 ( e ); 2119-2.] SECTION  1903 . Approval of Requisition . — Provincial and municipal requisitions and requisitions for supplies for the city of Baguio shall be approved by the Executive Secretary. In the case of the city of Manila the certificate of the municipal board appro ving the requisition shall be sufficient. TcADCI SECTION  1904 . Action in Emergency Cases . — With the approval of the Executive Secretary, a request for the delivery or forwarding of supplies for a province or municipality, or the city of Baguio, may be acted upon, in a case of emergency, before the requi sition and certificate of appropriation are received, the requisitioning officer being responsible for the prompt submission of the same through the usual channels. Standardization SECTION  1905 . Standardization of Supplies . — The Governor-General may, by executive order, constitute a committee on standardization of supplies, whose duty it shall be, after studying the requirements of the various branches of the service, to establish c ertain makes, grades, qualities, or kinds of material and equipment as the standards of their class to be furnished for Government use, and said committee shall also direct the use and redistribution of serviceable material and equipment belonging to the v arious branches of the service, whenever in its opinion the same can be used more advantageously elsewhere, subject to the restrictions of the existing appropriation law. DSAICa After the standards of any classes of material or equipment have thus been established, the Purchasing Agent shall furnish no others upon requisitions unless (1) specifically authorized by the Governor-General, (2) sanctioned by subsequent action of the co mmittee, or (3) to admit of the disposal of material and equipment already on hand. [Ex. Or. 62 (1914).] Charges for Supplies SECTION  1906 . Charges for Supplies . — For services rendered and supplies furnished, the Bureau of Supply shall charge the cost thereof plus a ARTICLE  IV Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011 566 ARTICLE  V