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DMRB: Pavement CD 236 Version 4.2.0 Surface course materials for construction (formerly CD 236 (rev. 3 inc. HD 36/06 and IAN 156/16), HD 37/99, HD 38/16, IAN 157/11, TA 81/16). Version 4.2.0
Publication Year
2025
Document Status
Current
Abstract
Details requirements for the implementation, material options, and aggregate selection for applying surface course materials for flexible and rigid pavements.
Document History
Pavement. Design. Supersedes CD 236 Surface course materials for construction (formerly CD 236 (rev. 3 inc. HD 36/06 and IAN 156/16), HD 37/99, HD 38/16, IAN 157/11, TA 81/16). Version 4.1.0 (NHW, 2022). Version 4 dated March 2020 - with additional requirements relating to coloured surfacing, central reserves and laybys. Version 4.0.1 issued July 2021 - making changes to the core document and Wales NAA. Incremental change made to notes and editorial updates. Version 4.1.0 issued December 2022 - changes made to core document, England NAA, Scotland NAA and Wales NAA. Version 4.2.0 dated September 2025. Incremental changes to requirements, based on 3 years experience of using CD 236 and cyclic review.
Publisher Information
National Highways
National Highways is an executive non-departmental public body, sponsored by the Department for Transport. It has responsibility for operating, maintaining and improving motorways and major A roads in England. Formerly known as Highways England, between 2015-2021 and Highways Agency, between 1994-2015.
National Traffic Operations Centre
3 Ridgeway
Quinton Business Park
Birmingham
NHW
UK
Website: https://www.gov.uk/government/organisations/national-highways
Email: info@nationalhighways.co.uk
Tel: 0300 123 5000
