The British Board of Agrément is an organisation partnered with Government and whose Governing Board includes representation on behalf of the Office of the Deputy Prime Minister.

The BBA's Agrément Certificates have been providing authoritative and independent information on the performance of building products for over 35 years. Every Agrément Certificate contains important data on durability, installation and compliance with Building Regulations, not just in England and Wales, but in Scotland and Northern Ireland, too. Assessment involves three distinct areas - laboratory testing (carried out wherever possible to UKAS requirements), site inspections, undertaken by the BBA's own Inspection Services team, and factory production control.

The BBA is the UK member of the European Union of Agrément (UEAtc), represents the UK in the European Organisation for Technical Approvals, and is responsible for the issue of European Technical Approvals in this country, enabling products to achieve the commercially vital CE mark.

The BBA also operates a number of Approved Installer schemes in certain key product areas and its Test Services section can carry out a wide range of tests against the requirements of British, European or international standards, as well as trade and industry specifications.