62．1隻有工程師簽發了維修證書且交給業主，說明工程已完工，維修情況令他滿意，才能視契約已經完全履行。工程師應在維修期滿後，或，如工程的不同部分適用不同的維修期，在最後一個維修期滿後xx天內簽發維修證書，或在所有在此維修期中，按本契約第49和第50條規定，命令進行的工程完成且令工程師滿意後立即簽發，本條款必須全面執行，不管先前業主是否已進人、占有或使用工程或工程的任何部分。維修證書的簽發不得作為按第二部分第60條的規定向承包人支付第二筆留置款的前提條件。
（2）the employer shall not be liable to the contractor for any matter or thing arising out of or in connection with the contract or the execution of the works，unless the contractor shall have made a claim in writing in respect thereof before the giving of the maintenance certificate under this clause．
62．2業主不得因本契約或施工所產生或與之有關的任何事項對承包人負責，除非承包人在簽發本條款規定的維修證書前，就此種事項已提出書面索賠。
（3）notwithstanding the issue of the maintenance certificate the contractor and，subject to subclause（2）of this clause，the employer shall remain liable for the fulfillment of any obligation incurred under the provisions of the contract prior to the issue of the maintenance certificate which remains unperformed at the time such certificate is issued and，for the purposes of determining the nature and extent of any such obligation，the contract shall be deemed to remain in force between the parties hereto．
62．3儘管簽發了維修證書，承包人以及業主（但應符合本條第2款的規定）仍應對發生在證書籤發前而在證書籤發時尚未履行的契約義務負責，為決定此種義務的性質及範疇，應本契約繼續對契約雙方有效。
remedies and powers
補救和權力
63．（1）if the contractor shall become bankrupt，or have a receiving order made against him，or shall present his petition in bankruptcy，or shall make an arrangement with or assignment in favor of his creditors，or shall agree to carry out the contract under a committee of inspection of his creditors or，being a corporation，shall go into liquidation（other than a voluntary liquidation for the purposes of amalgamation or reconstruction），or if the contractor shall assign the contract，without the consent in writing of the employer first obtained，or shall have an execution levied on his goods，or if the engineer shall certify in writing to the employer that inhis opinion the contractor：