A study was conducted in 1983 to determine the current state of document delivery among the libraries and non-library document services of the United States and to ascertain what improvements need to be made. Of principal concern was that part of satisfaction time--the elapsed time from the library patron's lodging of a request to the time when the material is available for use--which is related to transmission of the material from the supplier to the requestor. Questionnaires were sent to 150 libraries selected at random from the "American Library Directory," the 20 Association of Research Libraries (ARL) institutions with the highest rate of supply, and 15 document delivery services; a response rate of more than 50% was obtained. A literature search and telephone interviews with major suppliers were also conducted. An average satisfaction time of 10 to 16 days and an average material transmit time of 6.3 days were found. Major problems were also found in turnaround time within supplier organizations. Nevertheless, an intensive, full-scale study of document delivery was not recommended because no evidence was found that the library and document service communities were seriously concerned about the performance of the document delivery system. This report describes the interlibrary loan (ILL) process, major document suppliers, the overall performance of the ILL system, document delivery options currently in use (telefacsimile and other image-based systems), the state of the art of electronic (full text) document delivery, and probable future document delivery trends. Also presented are a summary of significant document delivery statistics and a sample questionnaire. (ESR)