News A gas tax? A mileage tax? Biden wary of user fees to pay for roads, bridges and highways March 30, 2021 Maureen Groppe and Bart Jansen, USA TODAY Comments Off on A gas tax? A mileage tax? Biden wary of user fees to pay for roads, bridges and highways Transportation chief Pete Buttigieg has sent mixed signals on gas and mileage taxes, but Biden is steering clear of them in his infrastructure plan.