Hawaii’s fuel tax decline will be sharper than most since we are among the nation’s leaders in transitioning to a cleaner, more efficient vehicle fleet. Other states are facing similar challenges in funding roads and bridges. About a dozen states have examined RUC. Several have conducted statewide pilot tests, including Oregon, California, Washington, Colorado, and Minnesota. Oregon implemented a live system with more than 1,000 volunteers in 2015, and the state is expanding the program. California conducted a pilot with 5,000 volunteers testing various methods of reporting mileage in 2016. Washington recently completed a pilot with 2,000 volunteers. Internationally, New Zealand drivers of diesel cars have paid a per-mile fee to fund their roads since 1978.