Under typical construction contracts, at completion of the work by the contractor it is customary for a certificate of practical completion to be issued, following which the DLP starts to run. At the expiry of the DLP, it is customary for a certificate to be issued stating that all defects have been rectified, following which the works are certified as completed in accordance with the contract and a final certificate is issued, which discharges the contractor from its obligations and signifies completion of the contract.