DESIGN SUPERVISION Design supervision over the construction of buildings and structures is carried out by the developers of detailed design for a facility (facility component) in respect to which construction and installation works are performed in accordance with the provisions of SP Design companies supervision is performed during the whole period of construction and commissioning of completed facilities in order to provide the compliance of engineering, architectural, construction and other technical solutions and performance indicators of commissioned facilities with solutions and indicators stipulated in approved designs (working designs), and to increase liability level of design, construction and installation organizations and customers for them to provide high quality buildings and structures and to keep to their budget.