Since 2018, all vessels over 5.000 GT calling EU ports (including Norway and Iceland) have to provide an assessed monitoring plan. Also, they have to report data on fuel consumption, distance travelled, and time-at-sea or cargo carried in so called voyage reports. This data is to be verified at the end of each reporting period. EU MRV will become ever more important, as it is the basis of a future coverage of maritime emissions under the European Emissions Trading Scheme, EU ETS. It will thus evolve from a mere compliance issue to a commercial factor in the operation of vessels.