Abstract
The conventional model for the rehabilitation of addicts in Germany was characterized by a hierarchical structure consisting of counselling, detoxification stages and aftercare. As only a limited number of addicts were reached with this rigid system new rehabilitation models were devised. The result is a network of advisory centers, out patient departments and hospitals leading to a flexible client-centered approach. The interactions between the social security system and the creation of new rehabilitation models are emphasized. This is illustrated by the introduction of methadone maintenance treatment in Germany.