In April 2009, the Department of Defense decided to terminate production of the F-22A Raptor and close the production line after the last aircraft delivery. In advance of the decision, the Air Force asked RAND Project AIR FORCE to identify the costs and implications of various shutdown options on the industrial base. Because the F-22A manufacturing base is complex, shutting down the production line without making any investment in preserving key elements of production capability would make it expensive and difficult to restart production in the future, if that were desired. This monograph evaluates the implications of three shutdown options for the F-22A industrial capability: shutdown; shutdown and restart; and [beta]warm[gamma] production, in which a small number of aircraft are produced until and if a decision is made to return to full-rate production. Issues such as the availability of skilled labor, processes, facilities, and tooling used by firms supporting F-22A production, are likely to affect some suppliers.