HAPAS Certificates

HAPAS (Highway Authorities Product Approval Scheme) was set up in 1995 to establish a nationally recognised approval scheme for innovative products and systems used in highway works.

Successful HAPAS assessment results in the issue of a Certificate or Report which provides highway engineers with product performance, design and installation data invaluable to the product choice and project planning processes.

For further information, please follow the links below:

General information on HAPAS

HAPAS Product sectors and their Guidelines

HAPAS Assessment and Certification for High Friction surfacing - Alternative Aggregate

HAPAS Assessment Reports

Change in frequency to HAPAS reviews

BBA HAPAS Thin Surfacing and Highways Agency IAN 154/12


An updated Guideline for Assessment and Certification of "Modified Bitumens for Surface Dressings, Micro-surfacings and Bond Coats" is now available.

The Guideline has been updated to ensure latest BS EN test methods are referenced in Table 2 and 3.