B69 Skillsbackbone – ATTENTION: COSS Transitional Arrangements – From Dec 2025

Hi All,

Please see the message below from NSAR regarding the transitional arrangements following changes to the controller of site safety (COSS) Competence.

To All Providers

Please find attached a letter sent on behalf of Network Rail regarding the transitional arrangements following changes to the Controller of Site Safety (COSS) competence in December 2025.

Providers should make sure that they share the attached with their administrators and teams and channel any questions that they have through one person so that queries can be handled efficiently.

Please address any questions to Freshdesk.

Kind Regards,

NSAR

B69 Skillsbackbone - COSS Transitional Arrangements - December 2025

Acknowledgement Slip

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