The implementation of the ‘Global 0,50 % m/m Sulphur cap’, as described in article 14 of the Marpol 1 Annex VI, is very close. From 1st January 2020, the restriction of the maximum Sulphur content in ships’ fuels will come into force worldwide. The 70th MEPC2 indicates that it is not likely to be postponed. The enforcement of this requirement represents a considerable tightening of the maximum of 3,5% m/m since 2012. Moreover, it will be in addition to other strict air emission requirements that are already applicable. This article considers possible technical provisions on board to meet these requirements and how simulator-based training can contribute to raising the awareness, knowledge and technical skills of marine engineers and other experts.