ACI规范-562-21《现有混凝土结构的评估、维修和修复规范要求和注释》旨在为设计专业人士提供一套评估损坏和劣化的规范，并设计适当的维修和修复策略。该规范规定了现有混凝土结构建筑、构件、系统和非建筑结构（如适用）的评估、维修和修复的最低要求。ACI规范-562-21是专门为配合国际现行建筑规范（IEBC）或作为独立规范采用而制定的。

ACI CODE-562-21, Assessment, Repair and Rehabilitation of Existing Concrete Structures-Code Requirements and Commentary, was developed to provide design professionals a code for the assessment of the damage and deterioration, and the design of appropriate repair and rehabilitation strategies. The Code provides minimum requirements for assessment, repair, and rehabilitation of existing structural concrete buildings, members, systems and, where applicable, nonbuilding structures. ACI CODE-562-21 was specifically developed to work with the International Existing Building Code (IEBC) or to be adopted as a stand-alone code.