Section 9
SEC. 9. The provisions of existing law to the contrary notwithstanding, municipalities and chartered cities are hereby authorized and empowered to execute by administration any reclamation work or any construction authorized in section one hereof: Provided, That all such works shall be prosecuted on the basis of plans and specifications approved by the Director of Public Works: And provided, further, That the District or City Engineer concerned shall certify every statement of accomplished work that the same is in accordance with the approved plans and specifications.