This user guide is a reference document for public transportation agencies using the Hazard Mitigation Cost Effectiveness Tool. The 2017 version of the tool includes the ability to estimate the financial benefits of investing in disaster resilience for multiple different types of scenarios and events. As with previous versions, the tool enables transit agencies to conduct a robust cost-benefit analysis of resilience projects being considered for funding, thereby supporting informed decisions on the benefits of investing in resilience projects. The tool also supports the consideration of resilience as a part of an agency’s transit asset management process.