In order to meet the new European standards for the pollutant emission of Non-Roary Motorised Vehicles (EMNR) of Regulation (EU) 2016/1628, Navigable Routes de France/Subdivision de Lyon (VNF) plans to test an innovative system for the clean-up of engines of inland waterway vessels. VNF will conduct this experiment in real navigation condition of the motorised working pontoon (boat) dedicated to the maintenance of the waterways of the Saône and the Rhône.