Drugs and Alcohol standard (supplier page)

Welcome to this dedicated supplier page to help you understand the changes to the Network Rail Drugs and Alcohol standard (NR/L2/OHS/00120). The new standard was published on 3 September 2022, and all changes will be implemented by March 2023. This content is to help you understand the main principles and changes within the standard.

What’s changing?

Our supply chain colleagues are expected to test 20% of their safety critical staff so please make sure you are familiar with the changes, and never attend work under the influence of drugs or alcohol.

Below are the key changes surrounding the standard update – you can also download a copy from the attachments section on this page.


If you wish to run through the changes with your teams, please download and use the ‘Drugs and Alcohol standard – Line Manager Briefing Pack – Supply Chain’ briefing pack in the attachment section.

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