Abstract
B.O.T contracts are only contracts between the state and the private sector or companies to complete projects desired by the state without the need to allocate funds by the private sector in order to build and manage this project and get profits through a specified period in the contract, the subject of sustainable development is often ignored by the companies implementing the projects because they need high costs ignoring the benefits achieved in the environmental dimension, social dimension and economic dimension. Through B.O.T contracts and similar contracts, sustainable development and all its environmental, economic and social dimensions can be achieved, because the project implementer becomes the owner of the project during the duration of the contract and when achieving sustainable development brings benefits to the entrepreneur, including environmental, social and economic benefits, where its products are environmentally friendly and help to increase its sales and maintain a suitable environment for working for the project workers. It is also obliged through the contract with the state to implement and achieve sustainable development through the laws of the state.