The competent supervisory authority shall verify a certain number of fuel and fuel samples. The number of samples depends on the total quantities placed on the market. Sampling is carried out twice a year in accordance with the requirements of the General Administrative Regulation on the 10th BImSchV, so that both the winter and summer goods can be tested. Sampling and analysis is carried out by test laboratories accredited for this purpose (mineral oil products).
The results are collected in accordance with Section 18 (3) of the 10th BImSchV via the "FQMS – Fuel Quality Monitoring System". It is a data collection tool of the Federal Environment Agency (UBA).
The results of the country reviews are compiled annually by the UBA into a National Fuel Report. This is reported by the Member State of Germany to the European Commission.