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Non Standard Welded Track

Track that does not conform to the definition of Standard Welded Track. It is track for which rail adjustment cannot be assessed with confidence and comprises rails longer than 220m which have not been adjusted
rails longer than 220m with no creep marks or pegs
rails longer than 220m with no alignment information available
rails longer than 27.4m with resilient fastenings more than 1 in 3 (unless the rails have been correctly adjusted in accordance with requirements for CWR)