The Conference of European Schools for Advanced Engineering, Education and Research (CESAER) is an association of over fifty European Technical Universities from 26 countries, mainly in Europe. Among a number of task forces, CESAER runs the Task Force for Open Science (TFOS). The Open Access Working Group within the CESAER TFOS includes representatives from TUs in ten European countries: the Netherlands, Germany, Sweden, the UK, Poland, the Czech Republic, Italy, Finland, Spain and Austria. Jointly coordinated by TIB Hannover and the University of Strathclyde, the group aims to apply a subject-based approach towards Open Access implementation that bridges the gaps across national- or institutional-level Open Access implementation policies. The presentation will describe the current work being carried out within this group and examine the specifics of Open Access in the Engineering Sciences.