Abstract: Chronic obstructive pulmonary disease (COPD) is a major cause of morbidity and mortality. In the European Union, COPD and asthma, together with pneumonia, are the third most common cause of death. In North America, COPD is the fourth leading cause of death, and mortality rates and prevalence are increasing. The major characteristic of COPD is the presence of chronic airflow limitation that progresses slowly over a period of years and is, by definition, largely irreversible. Most patients with COPD are, or were, cigarette smokers. Prevention by reducing the prevalence of smoking remains a priority. Although much of the damage is irreversible at the time of clinical presentation, treatments are available to improve the quality of life, the life expectancy, and perhaps the functional ability of patients with COPD. Several national and international consensus statements on optimal assessment and management of asthma have been published in recent years. These consensus statements have led to international standardization of diagnosis and management and to better care. They also form a basis for clinical audits and suggest areas of future research. However, there have been few attempts to develop consensus guidelines on management of COPD [1, 2]. The European Respiratory Society (ERS) has taken the initiative of producing a consensus statement on COPD. A Task Force of scientists and clinicians was invited to provide this European consensus. The guidelines are intended for use by physicians involved in the care of patients with COPD, and their main goals are to inform health professionals and to reverse a widespread nihilistic approach to the management of these patients. This Task Force firmly believes that treatment can significantly improve the quality and length of life of patients suffering from this chronic, progressive condition. Subcommittees of the Task Force focused on the five main sections of this project: Pathology/Pathophysiology, Epidemiology, Assessment, Treatment, and Management. Experts produced papers within each section, and these papers were brought together by the subcommittee heads. At a plenary meeting held in Wiesbaden, Germany on November 11–13, 1993, all contributions were extensively discussed, and additional working group meetings were arranged. Flowcharts for management in common clinical situations were produced. However, at all stages, members of the Task Force found themselves confronted by unresolved questions and regional differences in management across Europe. A practical approach was adopted, combining established scientific evidence and a consensus view when current data were inadequate. This approach identified more clearly those areas where further research is needed. Comments on drafts of the consensus statement were invited from participants of the original meeting, which included colleagues from North America. The edited document was sent to independent experts for external review. All members had an opportunity to comment on the document at the ERS meeting in Nice on October 2, 1994. As chairmen of the Task Force, we hope that the final document will promote better management of COPD in Europe. We would like to thank all who contributed to it. On behalf of the ERS, we also gratefully acknowledge a generous educational grant from Boehringer Ingelheim and the organizational assistance provided by M.T. Lopez-Vidriero.