GORT3437 Iss 6

This document mandates the requirements relating to the production of contingency plans, which have to be applied when on-train equipment becomes defective. It applies to all trains being brought into service, and to those in service, on Network Rail managed infrastructure. This document contains requirements that are amended under the Railway Group Standards Code (Issue Three) as a small scale change. Reference to the amended requirement is made in the 'Issue Record'. All other parts of the document are unchanged from the previous issue.