UN regulations become effective from September 1999.The standard require all brake pad/brake disc must obtain ECE-90, then the products can sold in Europe market.

E-Mark is used in the automotive industry as a conformity mark,it is applicable for the relevant automotive spare parts in the aftermarket.
The parts must meet OE requirements.They must be tested and certified to access the E-Mark sign on the part. After the products tested as the requirements, an eligible certificate will be issued to the safety of driving. Also conform environment requirement protection.
We can find the requirements for brake pad/brake disc from ECE R90 regulation.The products are tested by independent agency. It supply the test report, the results to the corresponding government authority, where the official certificate for each brake pad/brake disc will be released.
After then,the clients in each Europe country will agree to proceed and allow these products entering into the local market.