Road Charge Projects
California Four Phase Demonstration
A key recommendation from the 2017 pilot was to explore whether paying at the pump could work for a road charge just like it does for the gas tax. How could the user experience be as easy as possible? With support from a federal Surface Transportation Funding Alternative grant, California is testing how road charge can work with four technologies: usage-based insurance, ridesharing, electric vehicle charging stations/pay-at-the-pump systems, and autonomous vehicles.
The Four Phase Demonstration was held January through June 2021. An evaluation of the demonstration and a final report are in development to summarize demonstration operations, findings, and next steps.
You can sign up for our email list to get a demonstration update and notifications about participation opportunities in future studies.

California Four Phase Demonstration Comprehensive Report (2022)
Appendices
- Appendix A: Independent Evaluation
- Appendix B: Concept of Operations
- Appendix C: Phase-Specific System architecture Diagrams
- Appendix D: System Requirements Specifications
- Appendix E: Business Requirements Document
- Appendix F: Systems Engineering Management Plan
- Appendix G: Interface Control Document
- Appendix H: Test Plan
- Appendix I: Testing Reports
- Appendix J: Business Partners audit Memorandum
- Appendix K: Customer Support Plan
- Appendix L: Participant Agreement
- Appendix M: Demonstration Privacy Policy
- Appendix N: Demonstration Progress Reports
- Appendix O: General Public Polling Results
- Appendix P: Focus Group Results