The report identifies Federally sponsored noise technology research projects in the areas of industrial machinery, mining, and construction equipment to control occupational and environmental noise. More than 35 projects sponsored by 12 Federal agencies are identified. Only projects that were active, recently completed, or impending as of January 1980 and reported by the Federal agencies to EPA are described. Identified for each project are objectives, accomplishments, status, schedule, funding project officer, and investigator. The report also contains a bibliography of all noise technology reports on the above subject matter completed by Federal agencies, and released and available to the public in years 1978, 1979, or 1980.