This report seeks to inform administrators and clinicians about appropriate diagnosis and treatment approaches that will help ensure the development or enhancement of effective lesbian, gay, bisexual, and transgender (LGBT)-sensitive programs. Serving as both a reference tool and program guide, it provides statistical and demographic information, prevalence data, and case examples; suggested interventions, treatment guidelines and approaches, and organizational policies and procedures. Section I of the report includes information on sexual orientation, legal issues, and treatment approaches and modalities from an LGBT standpoint. Section II offers further information on clinical issues of LGBT clients, an introduction to strategies and methods for improving current services to LGBT individuals, and steps for starting LGBT-sensitive programs. Section III provides an overview of the issues that need to be addressed when developing an LGBT program or expanding current services. Figures, note, glossary, references, appendixes