of the study. The following are the minimum reporting requirements: 1) Monthly Letter Progress Reports The contractor shall provide to SSI by first class mail five copies of a brief monthly letter progress report, postmarked no later than the fifth of each month. Letter progress reports should not exceed five double-spaced pages, and should cover the following: a. A brief summary of technical progress and milestones. b. A summary of problems encountered and plans for resolution, c. A summary of effort expended to date. 2) Midterm Report The contractor shall provide to SSI by first class mail five copies of a midterm report, postmarked no later than August 6, 1984. The midterm report shall include draft writeups for all tasks completed by midterm, suitable as first draft material for the final report. The midterm report shall also include a synopsis of plans for completion of the study. The midterm report shall be prepared in narrative format, with graphics as appropriate for complete and clear exposition of work completed. 3) Final Report The contractor shall provide to SSI by first class mail five copies of a final report, postmarked no later than February 6, 1985. The final report shall include the following: a. Executive Summary not to exceed 20 pages; this need not be separately bound. b. Study conclusions and recommendations, with particular attention to recommended further work. c. A narrative description of the results of each study task. d. References used during the course of the study.