The objective of this research program was to compile a data base covering all the commercially significant organic rubber-processing chemicals produced or imported in the United States. The Rubber-Processing Chemicals Data Base contains the following elements: chemical information (identification numbers, chemical names, synonyms, and identifiers); economic information (production, sales, and unit cost); use information; product process information; and chemical producer information (company and plant site identifiers, their locations, and the associated river basins and Air Quality Control Regions). Data were compiled on 327 commercial products from a variety of sources, including on-line information retrieval systems, government statistical and research publications, standard industry handbooks, and in-house technical expertise. Correlation of data is accomplished by means of a System 2000 data base management system, which permits retrieval on the basis of various 'key' data elements.