Navy Readiness: Additional Efforts Are Needed to Manage Fatigue, Reduce Crewing Shortfalls, and Implement Training, Report to the Committee on Armed Services, House of Representatives [open pdf - 3MB]
From the Highlights: "Following two Navy ship collisions in 2017, the Navy found that sailor overwork, fatigue, and training deficiencies contributed to the accidents, and has taken steps to address these issues. House Report 116-120, accompanying a bill for the National Defense Authorization Act for Fiscal Year 2020, includes a provision for GAO [Government Accountability Office] to assess the Navy's management of surface ship sailor fatigue, crewing, and the RRL [Ready Relevant Learning] initiative. This report examines the extent to which the Navy has (1) implemented its fatigue management policy, (2) assigned sufficient crewmembers to its surface ships and tracked crew levels, (3) forecasted its personnel needs as the fleet size grows, and (4) implemented RRL training and measured its effectiveness."
Government Accountability Office: https://www.gao.gov/