Executive Officer has granted permission for the execution of the work.

Period within which Executive Officer is to grant or refuse to grant permission to execute work :— Within thirty days after the receipt of any application made under Section 264 for the approval of a site or for permission to execute any work or of any information or of documents or further information or documents required under rules or bye-laws, the Executive Officer shall by written order either approve the site or grant such permission or refuses on one or more of the grounds mentioned in