The approach and the results of the work performed for the State-wide Emission Inventory for Vermont, are presented. The report details the collection, processing and reporting of emission source data for five air pollutants; sulfur oxide, particulates, nitrogen oxide, hydrocarbons, and carbon monoxide emissions. The purpose of the project was to provide the State of Vermont with input information for the preparation of Implementation Plans. The work was initiated with the mailing of Questionnaires to commercial and industrial establishments, hospitals, fuel dealers and schools. A master list was compiled of the significant source mailings, on an after-the-fact basis.