The date of Substantial Completion is important date as it comes into play on many internal procedures relating to a construction project. All projects need a Certificate of Substantial Completion to document the date at which the project was ready for beneficial occupancy by Yale University. From the date of Substantial Completion the Owner is responsible for the maintenance and upkeep of the completed project area. From this point forward any User concerns regarding the functioning or maintenance of the space should be addressed to Facilities Operations staff. If an item is a warrantee item Facilities Operations will contact the Project Manager and the Constructor to address it. The date of Substantial Completion initiates the Warranty Period.