Provided that the local authority shall not advertise for tenders or enter into any contract or agreement for the execution of any works in connection with schemes or parts of schemes which have been sanctioned by Government under conditions (_b_), (_c_) or (_d_), until the specification and form of tender for such contract have been examined and approved by the Sanitary Engineer. No tender or contract for any such work shall be accepted until it has been submitted to the Sanitary Board and they have approved the acceptance thereof; And further provided that when the work is carried out under condition (_d_), it shall be supervised by an officer appointed for the purpose by the local authority with the approval of the Sanitary Board, and shall, while in progress, be periodically inspected by the Sanitary Engineer. [Sidenote: Report by local authority to the Commissioner in case of small works.] 7. Where the estimated cost of works amounts to less than Rs. 10,000, the local authority shall report, for the information of the Commissioner of the Division, the agency by which it is proposed to have the works carried out, and shall follow the instructions issued by him in the matter. FEES. [Sidenote: Bengal Government Notification No. 333T.M., dated the 23rd May 1911.] 8. The following fees shall be leviable by the Sanitary Board from local authorities for the work specified against each:— (_a_) a fee of two per cent. on the estimated cost (excluding cost of surveys) of all projects and schemes, for which detailed estimates and drawings are prepared by the Sanitary Engineer; (_b_) a fee of one-half per cent. on the first Rs. 20,000 and one-quarter per cent. of the balance of the estimated cost of schemes and projects, the detailed plans and estimates of which are examined by the Sanitary Engineer; (_c_) a fee of two per cent. on the estimated cost of the works, when contract, drawings, specifications and forms of tender are prepared by the Sanitary Engineer: Provided that when both detailed estimates and drawings and contract drawings, specifications and forms of tender are prepared by the Sanitary Engineer, an inclusive fee shall be charged of three per cent. on the estimated cost of the works. [Sidenote: Bengal Government Notification No. 819M., dated the 10th April 1908.] [Sidenote: Government of Bihar and Orissa Notification No. 7682M., dated the 8th July 1913.]