Welcome to Standards for Highways

Standards

DMRB

Requirements and advice documents relating to works on motorway and all-purpose trunk roads in the UK.

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IANs

Documents issued historically by National Highways relating to works on motorways and all-purpose trunk roads in England.

MCHW

Suite of specification documents included in a construction contract relating to works on motorway and all-purpose trunk roads in the UK.

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OTS

Specification for Operational Technology relating to works on motorway and all-purpose trunk roads in the UK. (Formerly TSS).

Latest news

November 2023: The Standards for Highways website has been enhanced to allow users to download a .csv file of search results. Please click here to see the help page guidance. 

Users can also easily bookmark standards of interest and opt into receiving an email notification when they are updated. Please click here to see the help page guidance.

Have you got an idea, or a challenge to our standards?

If you would like to give feedback on one of our Design Manual for Roads and Bridges (DMRB) or Manual of Contract Documents for Highway Works (MCHW) standards, please use our feedback form