The Yellow Book - Engineering Safety Management
The Yellow Book Issue 4 has the status of a withdrawn document and does not represent up-to-date guidance for the GB mainline railway. Yellow Book Issue 4 continues to be available for organisations to use if they wish, but all organisations should note that the guidance contained within it no longer aligns with the current regulatory regime that applies to the GB mainline railway system.

The link below directs you to the replacement guidance, located on RSSB's website, for organisations involved in the GB mainline railway system.

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