Motor vehicles equipped with compression ignition (diesel) engines ... Limit values:
1. The level of concentration must not exceed the level recorded on the plate pursuant to Council Directive 72/306/EEC (2).
2. Where this information is not available or where Member States' competent authorities decide not to use it as a reference, the limit values of the coefficient of absorption are as follows: maximum coefficient of absorption for:
- naturally aspirated diesel engines = 2,5 m-1,
- turbo-charged diesel engines = 3,0 m-1 or equivalent values where use is made of equipment of a type different from that used for EC type-approval.
