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This document provides an overview of the requirements of CAN/CSA A23.1-09 Concrete materials and methods of concrete construction with respect to welding. It is designed to provide guidance for individuals and organizations involved in the design, fabrication of cast-in-place concrete and concrete precast in the field and residential concrete used in the construction of buildings conforming to Part 9 of the National Building Code of Canada (NBCC).

This document is only for general guidance purposes; reference to the full text of CSA A23.1 should be made.