Countries must submit a summary of fuel quality monitoring data collected during the period January to December of the previous calendar year, in accordance with Article 8(1) of Directive 98/70/EC.
Fuel Quality Directive

Countries report annually on the volumes, energy content and life cycle GHG emissions of fuels used in road transport and non-road mobile machinery, in line with their obligations under the Fuel Quality Directive 98/70/EC, Article 7a.