Until two years ago, the Carcinogens and Mutagens Directive had been determining binding limits only for three carcinogenic substances. In so far three Tranches, the European Commission has now proposed amendments for the Directive: following the completion of the 1st Tranche, which determined 13 limits for carcinogenic substances, there has now also been a breakthrough concerning the 2nd Tranche: in the trilogue negotiations on 11 October 2018, Council and EU Parliament found agreement concerning the diesel engine emissions, which has been a controversial issue for a long time. From the workers’ point of view, a good compromise has been found. However, there is still far-reaching need for action.