In the "Practical Guidance" section, the document compares the various stages of a project’s theoretical development with the reality of a series of regional health projects (Alsace, Brittany, Île-de-France, Lorraine, Pays de la Loire) focused on alcohol abuse prevention. The analysis highlights the essential role of health education organizations in these projects, in partnership with the network of departmental alcoholism prevention committees, in two key areas: serving as a resource center for documentation and educational materials, and providing methodological support, particularly in training and evaluation.