Construction and installation works shall be performed in compliance with standards of the Customer, taking into account the requirements of SP 70.13330.2012. In the period of preparation for work execution, the appropriate work execution designs shall be elaborated. The general requirements for them are stated in SP 48.13330.2011. The content and level of detail of materials developed within the work execution design are specified by the contracting construction and installation organization based on the specific character and scope of works and regulatory requirements of the Customer. Prior to the beginning of works, it is required to arrange the geodetic control network.