Yes, with the exception of Austria; see below for more information.
AutoSock is the first snowsock product worldwide to have been tested and approved to the European standard EN16662-1:2000 for "supplementary grip devices" - this includes not only metal snow chains but also devices made from other materials. The standard covers passenger cars and light commercial vehicles up to 3.5 tonnes gross vehicle weight; we have no idea whether any other snowsocks have met this standard.
This standard has been implemented in all EU member states except for Austria, as well as in Norway, Serbia, Switzerland, and Turkey.
In France, the new “Mountain Law” (“Loi Montagne”) regulates that winter equipment must be carried on special road sections in mountainous areas between November 1st and March 31st. AutoSock for passenger cars and light commercial vehicles fully complies with this new regulation and can legally be used instead of snow chains or winter tyres when entering any of these areas.