缺陷责任期，是建设工程合同或协议中相当常见的词，其对应的英文表达为“Defects Liability Period”。它的具体含义如下：

缺陷责任期是指承包人按照合同约定承担缺陷修复义务，且发包人预留质量保证金的期限，自工程实际竣工验收之日起计算。缺陷责任期一般为6个月、12个月或24个月。缺陷责任期是一种当工程保修期(国际上称为缺陷责任期)内出现质量缺陷时,承包商应当负责维修的担保形式。维修保证可以包含在履约保证之内,这时履约保证有效期要相应地延长到承包商完成了所有的缺陷修复。缺陷责任期指建设工程质量不符合工程建设强制性标准、设计文件，以及承包合同的约定。缺陷责任期一般有6个月，12个月或者24个月，具体由发承包双方在合同管理中约定。

A defects liability period is a period of time following practical completion during which a contractor remains liable under the building contract for dealing with any defects which become apparent. Depending on the form of contract you are reading, it may also be referred to as a rectification period or defects correction period. A defects liability period is usually a period of around six or 12 months but it can vary depending on the contract used. Any defects or faults which arise during this period (for example - due to defective materials or workmanship) must be put right by the contractor at its own expense. 以下为相关例句，可供参考：

例句1

One of its purposes is to make sure that the retention money is settled by its end. So the defects liability period has close relationship with the quality retention money. 

缺陷责任期设置的目的之一，就是缺陷责任期届满应当结清质量保证金，故缺陷责任期与质量保证金密切相关。

例句2

The defects liability period has a start and duration, of which the length depends on the convention of the contracting parties and is no more than 24 months.

缺陷责任期由起始时间和持续时间决定，其期限由合同双方约定，最长不超过24个月。

例句3

If only a section of the works is affected the Defects Liability Period shall be extended only in respect of that section.

如果只有一部分工程受到影响，则缺陷责任期应仅针对该部分进行延长。

相关知识拓展：

缺陷责任期从工程通过竣（交）工验收之日起计。由于承包人原因导致工程无法按规定期限进行竣（交）工验收的，缺陷责任期从实际通过竣（交）工验收之日起计。由于发包人原因导致工程无法按规定期限进行竣（交）工验收的，在承包人提交竣（交）工验收报告90天后，工程自动进入缺陷责任期。

缺陷责任期内，由承包人原因造成的缺陷，承包人应负责维修，并承担鉴定及维修费用。如承包人不维修也不承担费用，发包人可按合同约定扣除保留金，并由承包人承担违约责任。承包人维修并承担相应费用后，不免除对工程的一般损失赔偿责任。