This report categorizes and provides information about $340 billion in California's key retirement, infrastructure, and budgetary liabilities. In addition, this report provides a framework for the Legislature to consider in prioritizing repayment of these liabilities and makes recommendations on which liabilities to pay down first and how the state could address such costs in the future. In general, we suggest that the Legislature prioritize actions to pay down those liabilities (1) with relatively high interest rates or (2) that result in benefits for groups or entities other than the state government. Due to its massive unfunded liability and relatively high growth rate, we recommend that the Legislature make a full funding plan for the California State Teachers' Retirement System a top priority in addressing the state's key liabilities.