OST asked the NRC to convene an expert committee to evaluate the effectiveness of its new peer review program and to make specific recommendations to improve the program, if appropriate. This is the first of two reports to be prepared by this committee on OST's new peer review program. OST requested this interim report to provide a preliminary assessment of OST's new peer review program. In the final report, the committee will provide a more detailed assessment of OST's peer review program after its first complete annual cycle.