default notice meaning in English

不履行通知书
违约通告

If the contractors fail to rectify the problems within the specified periods of time , fehd will issue default notices to impose penalty to the contractors in terms of deduction of contract fees
倘若承办商未能在指定时间内纠正问题，食环署会向承办商发出失责通知书，扣减其合约酬金以作惩戒。
From april 2003 to march 2004 , fehd issued a total of 806 warning letters and 755 default notices to contractors for breach of contract terms . about $ 1 . 7 million of contract fees were deducted as a result
由二三年四月至二四年三月，食环署就承办商违反合约条款共发出了八百零六封警告信及七百五十五封失责通知书，因而扣减的合约酬金约为一百七十万元。