[en] The Laboratory's Institutional Research and Development (IR and D) Program was established in 1984 to foster exploratory work to advance science and technology, disciplinary research to develop innovative solutions to support our national defense and energy missions. In FY 1988, the IR and D Program was funded by a 2% assessment on the Laboratory's operating budget. Our policy is to use these funds for researching innovative ideas in LLNL's areas of expertise and for developing new areas of expertise that we perceive to be in the national interest. The technical and scientific accomplishments of each project and of each institute funded this year are presented in this report. The projects were selected because they are expected to advance research in important areas that are too basic or too time consuming to be funded by the developmental programs or because they are somewhat risky projects that have the promise of high payoff. We are continually reappraising the IR and D Program. In particular, we seek new candidates for the Director's Initiatives, and we constantly reassess the work in progress. Each year, we make adjustments to further the Laboratory's policy of using the IR and D Program to fund innovative ideas with high potential for enhancing programmatic activities of national importance