The inclusion of an Environmental Awareness Module (EAM) within Vocational Education and Training (VET) in Spain is considered a factor of overriding importance due to the current need to incorporate environmental awareness within society as a whole but also within particular occupations and professional practices involved both in jobs relating to the environment and the entire system of production. In this study, we will tackle the changes in the educational system that are essential for sustainable development and for environmental education; we will also look at the equally essential changes that must be made to training in preparation for employment. We will analyse different dimensions of the EAM: its creation, development and evaluation, its set objectives, the function of Training Centres and the scope of students. Lastly, we shall propose a set of quality criteria. (Contains 6 tables, 1 figure and 3 footnotes.)