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This European Standard specifies the requirements for the approval of a process wherein a rail of one profile has part of its length forged to a different profile, together with the requirements for subsequent forging production and product acceptance. This European Standard applies to new railway rails according to EN 13674 1, and to switch and crossing rails used in conjunction with railway rails 46 kg/m and above according to EN 13674 2, to be welded or fish plated to make up switch rails or transition rails intended for use on railway infrastructures.