The main legal texts at the international and regional level addressing PPPs , as reported to the Secretariat , in chronological order , are : The United Nations Industrial Development Organization ( UNIDO 's ) `` Guidelines for Infrastructure Development through Build-Operate Transfer Projects '' ( BOTs ) ( 1996 ) : these guidelines consider financial and legal issues in the development of BOT projects , and provide a basic orientation needed to design effective BOT strategies , essential practical information on the structure and procedures of BOT arrangements and are intended to help reduce the time and costs involved in developing and contracting BOT projects .