The bill mandates the joint legislative audit and review committee to conduct a comprehensive study on the financial oversight of the interstate bridge replacement project by December 1, 2027. The study will focus on several key areas, including financial transparency and reporting, expenditure review and accountability, forecasting and data use, and oversight and internal controls. Specific tasks include assessing compliance with reporting requirements, analyzing funding allocations and expenditures since the project's restart in 2019, evaluating traffic and revenue projections, and reviewing the Washington State Department of Transportation's financial oversight mechanisms.

Additionally, the committee is authorized to contract for expertise in relevant fields and is required to submit a final report detailing its findings to the legislature by the specified deadline. The section outlining these requirements will expire on December 31, 2027.