they started using pay per mile in Oregon . it is an "opt in " system https://www.bendbulletin.com/localstate/oregon-s-pay-per-mile-program-could-go-from-test-to-reality/article_49adfc1a-0826-5d7b-9543-36576ea7b604.html Note the date of this article https://www.myorego.org "OReGO participants pay 1.8 cents for each mile they drive and that money goes directly into the State Highway Fund. Starting in 2019, the Legislature authorized ODOT to allow unlimited OReGO participants, and there are more volunteer perks than ever. Drivers of fuel-powered vehicles can receive a credit for fuel tax and remote emissions testing, and drivers of electric vehicles are eligible for reduced registration fees. Interested? " https://www.oregon.gov/ODOT/Programs/Pages/OReGO.aspx "Starting January 1, 2020, OReGO drivers of electric and high-mpg vehicles (40 mpg or better) can save money on registration while they are enrolled in Oregon's road usage charge program. Typically, drivers pay two to four years’ worth of registration fees in advance when purchasing a car or renewing their registration. With electric and high-mpg vehicle fee increases occurring in 2020 and 2022 (see House Bill 2017, "Keep Oregon Moving"), the combined up-front registration fee could amount to hundreds of dollars. But if they are enrolled in OReGO, electric and high-mpg vehicle owners do not have to pay the registration fee increases. Instead, they pay just the base registration ($43 per year) plus the road charge of 1.8 cents per mile. "