Section 11
SEC. 11. The district engineer shall submit to the Consulting Engineer to the Commission a statement showing the cost of authorized surveys and investigations made by him and of the superintendence of construction, repair, and maintenance of public works rendered by him for provinces and municipalities, and such cost shall be chargeable against the province or municipality for which such projects were accomplished, under such rules and regulations as may be jointly prepared by the Insular Auditor and the Consulting Engineer: Provided, That in no case shall the chargeable cost of the superintendence of construction, repair, and maintenance' exceed ten per centum of the total cost of such works. It shall be the duty of the provincial or municipal government incurring charges to make appropriations providing for the payment of the same, and moneys so paid shall revert to the general funds in the Insular Treasury.