What is the MCHW information hub?
This information hub exists to support MCHW users transition to the updated MCHW, published in September 2025. This MCHW refresh includes consequential amendments to the DMRB.
Key content on this information hub includes:
- Reason for change, including vision and benefits of the new MCHW.
- An overview of how the MCHW has changed, including impact on the DMRB.
- A mapping of old to new documents.
- Details of document-specific changes.
- Guidance on how to build a contract-specific specification in the new format.
Who is the MCHW information hub for?
The content is relevant to all users of the MCHW, whether you interact with the MCHW as a client, designer, constructor, or others. You can follow the links above to learn more about the changes. We hope this information helps you successfully transition to the updated MCHW. If you are unable to find the information you need, please use the Standards for Highways feedback form to get in contact.