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This document provides an overview of the requirements of Welding Requirements CSA-N291 Requirements for safety-related structures for CANDU nuclear power plants with respect to welding. It is designed to provide general requirements for material, design, construction, fabrication, inspection, and examination requirements for safety-related structures for CANDU nuclear power plants.

This document is only for general guidance purposes; reference to the full text of CSA N287.3 should be made.