French experts involved in the French building regulation and national EPBD implementation contribute also to the EPB standards development at European level. Therefore, the French building regulation and transposition of the EPBD and the EPB standards are in line regarding the principles and the general structure. But sometimes the French regulation differ in the details, mostly due to different timelines and already existing national methods.
The differences depend on the type of standards. Standards related to the building envelope are mostly based on European standards because there is a longer experience in standardisation and lobbying of the industry to have common rules in a common market. Also, the first attention in energy performance were focused on the building envelope in the French building regulations.