Since the publication of References 1 and 2, the Combustion Engineering Coal Gasification Program has progressed through completion of research and development related to process and equipment needs, detail design of a 5-ton-per-hour process development unit (PDU), and equipment procurement and construction of the PDU at C-E's Windsor, Connecticut site. Initial operation of the PDU is scheduled for August 1977. The purposes of this paper are to: Briefly review the objectives and scope of the program; summarize highlights of the program's R and D work to date; describe the PDU and its construction status; and outline the PDU test program.