Author Archives: Chris Gibson

IMPORTANT INFORMATION The transition of Signalling Maintenance Testing Handbook Competences to Sentinel 11 NOVEMBER 2024 – 1 MARCH 2025 If you, or someone you know, is a signalling engineer/contractor your paper Authority to Work will no longer be accepted as proof of the following signalling competences from 1 March 2025: SMTH Core Skills SMTH Aspect […]

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