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This document provides an overview of the requirements of Welding Requirements CSA-N287.1 General Requirements for Concrete Containment Structures for CANDU Nuclear Power Plants with respect to welding. It is designed to provide general requirements used in the design, construction, testing, and commissioning of concrete containment structures designated as class containment and is directed to the owners, designers, manufacturers, fabricators, and constructors of the concrete components and parts for CANDU nuclear power plants.

This document is only for general guidance purposes; reference to the full text of CSA N287.1 should be made.