This paper presents the most important results of a research project aimed at gathering empirical evidence on current efforts to foster and develop cross-curricular competences (CCC) in Vocational Education and Training (VET) Centres located in the Basque Country (Spain). The case study research method was used, with data being gathered by means of a questionnaire completed by 473 teachers from 61 centres, as well as 16 group interviews with management teams, 16 discussion groups with students and 4 with teachers, and 3 in-depth interviews. Three general conclusions can be drawn from the results: (1) There is no common way of understanding or defining CCCs among the teachers-students-management teams of VET centres; (2) Cycles are the ideal context in which to develop processes of pedagogical change which incorporate work on CCCs in an integrated manner; and (3) Assessment continues to be the most problematic curricular element. The study also highlights a more specific set of conclusions related to organisational characteristics, the teaching-learning process and the dynamics of educational innovation.