Between the issuance of the first Reagan administration space policy statement in July 1982 and 1987, there were a number of significant changes, including the Challenger accident, increased emphasis on the commercial uses of space, and the report of the blue ribbon National Commission on Space. A five-month SIG (Space) review during the second half of 1987 resulted in a new statement of national space policy reflecting these and other changes. President Reagan approved the new policy statement on January 5, but witheld its release until a parallel review of commercial space policy initiatives being conducted by the Economic Policy Council was completed. The policy statement itself was classified; this unclassified summary was all that was publicly released. From the NASA Historical Reference Collection, History Office, NASA Headquarters, Washington, DC.