This document contains 19 papers from the ninth World Conference of Therapeutic Communities (TCs) that deal with the interface between the mental health establishments and the TC. Papers include: (1) "Psychiatry and the TC" (Jerome Jaffe); (2) "The Chemical Brain" (Sidney Cohen); (3) "Where Does the TC Fail?" (Ab Koster); (4) "Psychiatric Severity and Response to Treatment in a TC" (Sherry Holland); (5) "Psychiatric Disorder in TC Admissions" (Nancy Jainchill and George De Leon); (6) "Diagnosis & Treatment of the Dual Diagnosis Client" (H. L. Wilder and Christopher Dawson); (7) "The Use of Psychiatric Medications in a Drug Free TC" (Joe Lamberti and Anne Blyth); (8) "A Multi-Modality Approach to Treatment in a TC" (Robert Vaughn Frye); (9) "Working with Minorities in the TC" (Arnold Abbott); (10) "The Group Process within the Context of the TC" (Eugene Adler); (11) "Addict Rage: A Therapeutic Dilemma" (Evan Garelle); (12) "Leaving the TC: Fantasies and Emotions" (Eliseo M. Gonzalez Regadas); (13) "The Role of Art as a Therapeutic Tool" (Sue Ann Rizzo); (14) "Towards an Ethics of the TC Model in the Approach to the Addicted Patient" (Daniel A. Campagna); (15) "A Rehabilitation Program in Brazil" (Haroldo J. Rahm); (16) "Reflections on Gradiva TC in Argentina" (Juan Alberto Yaria); (17) "The Sopimusvuori Society: A System of Rehabilitation in Finland" (Markuu Ojanen); (18) "A.R.E.B.A.-Casriel Institute: A Different TC" (Pietro Ceriana); and (19) "Applications of Gestalt Therapy in the TC" (Joan Zweben). (NB)