Because of immigration to the United States, the number of persons who speak languages other than English has grown over the past several decades. In addition, many groups whose primary language Is not English are exhibiting rapid population growth rates. As a result, health care providers may find they require an interpreter to communicate with patients. Guidelines are presented to facilitate the effective choice and utilization of Interpreters in primary care. Suggestions are also presented to help Interpreters work effectively In the health care setting.