R90 is Available for Voluntary Adoption by any National State.
What is the 
mark standard?
The standard states that the Aftermarket friction material should be within 15% of the OE performance when measured under specific conditons. Also the production facility must have systems and tests to ensure the same level of quality consistently.
In reality 15% is a wide tolerance band and the 
standard should be seen as the minimum acceptable level. As an OE manufacturer TMD Friction will always aim to be very close to the OE level on all Mintex Brake Pads sold in the Aftermarket.
Is it compulsory to have an mark?
ECE Regulation 90 is compulsory for all brake pads and shoes fitted to vehicles registered after September 1999.
Will the mark apply to all part numbers?
Only those vehicles in current production will need the mark. For example the Ford Mondeo will need an certificate but not the Ford Sierra.
How can I identify brake pads that have been approved to the new standard?
The brake pad box will show the specific approval number and material quality. The number is also branded on all four of the brake pads in the box.