Question to the Ministry of Housing, Communities and Local Government:

To ask the Secretary of State for Housing, Communities and Local Government, with reference to the Written Statement of 2 September 2024 on Building Safety, HCWS62, what the evidential basis is for the proposition that the European standard (BS EN 13501) is more rigorous and robust than the British fire door testing standard (BS 476-22).

The withdrawal of National Classes fire testing standards (BS 476) from Approved Document B in favour of the European Standard (BS EN 13501) aimed to enhance fire protection by simplifying compliance routes within the guidance. This change makes it easier and clearer to ensure products meet required standards and enabling simpler performance comparison.

The suitability of BS 476 and the transition to the EN standard was also scrutinised during the Grenfell Tower Inquiry. The EN suite of standards is constantly reviewed, periodically updated, and does not rely on withdrawn standards and is therefore seen as more suitable in the long term. The consultation response published alongside the Written Statement on 2 September 2024 shows a majority of respondents were in support of moving to the European Standard.

The Building Safety Regulator will keep these standards under review as part of their continuous review of Approved Document B, in line with their duty under the Building Safety Act to keep the safety and standard of buildings under review in England.