This technical report presents the engineering research and data accomplishments that have transpired to date in support of the development of Cost Effective Composite Drill Pipe (CDP). The report presents accomplishments made from October 1, 2002 through September 30, 2003. The following have been accomplished and are reported in detail herein: ? Metal-to-Composite Interface (MCI) redesign and testing ? Successful demonstration of MCI connection for both SR and ER/DW CDP ? Specifications for a 127mm (5?) ID by 152.4 mm (6?) OD composite drill pipe have been finalized for Extended Reach/Deep Water applications (ER/DW). ? Field testing of Short Radius CDP (SR) ? Sealing composite laminate to contain high pressure ? Amendments ? Amendment for ?Smart? feature added to ER/DW development along with time and funding to complete battery of qualification tests with option for field demonstration. ? Preparation of papers for publication and conference presentations.