A certificate issued by the principal agent to the contractor with a copy to the employer stating the date on which final completion of the works, or of a section thereof, was achieved – The contractor’s obligations have been fulfilled; the final account must be agreed and be paid. The contractor remains liable for defects arising from the quality of his work for five years from the date of final completion – longer if a defect has occurred during this period

See: 6.1P-21.6.2; 5.0P-26.3.1; 5.1M-16.2.2; 4.0M-10.3.1