and specifications for such public works as may be required by the provincial board. [1752-1.] It shall be the duty of the district engineer to prepare a comprehensive scheme of roads for all of the provinces and municipalities in his district, which shall be submitted, with his recommendations, to the provincial and municipal governments interested. [1401-3.] SECTION  1137 . District Engineer as Adviser to Municipalities and Townships . — The district engineer shall act in an advisory capacity to the municipalities, townships, and other local political divisions. Upon request by any municipal or township council,  and subject to the approval of the provincial board, it shall be his duty to make investigations and surveys for the proposed construction or repair of public works, and to submit to the president reports and estimates of the cost of such construction or r epair, with his recommendations. HSEcTC Upon request of any municipal or township council, subject to the regulations of the Bureau of Public Works, he shall prepare plans and specifications for such public works as may be required; and upon like request he shall be charged with the supervision  of the construction or repair of the same. [1401-7.] SECTION  1138 . Supplies and Materials for Use in Prosecution of Municipal Works . — Upon being authorized or requested by any provincial board or municipal council to make any investigations or surveys, or proceed with the construction or repair of any publi c works, the district engineer shall give his memorandum receipt for such available provincial or municipal property as shall be necessary for the prosecution of the work to the provincial or municipal officer accountable for the property, by whom it shall  be issued to said engineer, and he shall be responsible for the return of the same to said accountable officer unless he shall present to said officer a certificate satisfactory to the Insular Auditor that the same has been properly expended or accounted f or, and he shall have supervision over such provincial or municipal employees, tools, supplies, transportation, and material as may be assigned to him for projects authorized by said provincial or municipal governments. aAHTDS Such additional supplies, tools, and material as may be necessary for the satisfactory completion of authorized works shall be secured for the district engineer by the proper provincial or municipal officer in the usual manner, and the Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011 340