NASA Lunar Programs: Significant Work Remains, Underscoring Challenges to Achieving Moon Landing in 2024, Report to Congressional Committees [open pdf - 4MB]
From the Highlights: "In March 2019, the White House directed NASA to accelerate its plans for a lunar landing by 4 years, to 2024. Accomplishing this goal will require extensive coordination across lunar programs and contractors to ensure systems operate together seamlessly and safely. In December 2019, GAO [Government Accountability Office] found that NASA had begun making decisions related to requirements, cost, and schedule for individual lunar programs but was behind in taking these steps for the Artemis III mission. The House Committee on Appropriations included a provision in 2018 for GAO to review NASA's proposed lunar-focused programs. This is the second such report. This report assesses the extent to which NASA has (1) made progress on its lunar programs, including for the 2024 lunar landing goal, and (2) addressed challenges related to its management of lunar programs. GAO analyzed lunar mission and program documents and assessed the results of a 2020 NASA-sponsored study on lunar program status. GAO interviewed NASA officials on lunar program progress and risks and on plans to address study findings."
Government Accountability Office: https://www.gao.gov/