This project is concerned with optimising the delivery of primary healthcare to European citizens who are migrants who experience language and cultural barriers in host countries. We focus on the implementation of evidence-based health information (e.g. guidelines to enhance communication in cross-cultural consultations) and interventions (e.g. training initiatives on interculturalism and the use of paid interpreters) designed to address language and cultural barriers in primary care settings. We explore how these are translated (or not) into routine practice in primary care settings. We will investigate and support implementation processes for these using a unique combination of contemporary social theory, the Normalization Process Theory and a participatory research methodology.