Following a slowly growing national movement, Pennsylvania may be ready to try the idea of charging drivers a mileage-based fee to make up millions in transportation revenue lost to more fuel-efficient hybrid and electric cars.

Melissa J. Batula, the Pennsylvania Department of Transportation’s acting executive deputy secretary, said the department is working with the General Assembly to draft legislation establishing fees for those who pay little or nothing toward road maintenance. That’s because the state gets about 75% of its road money from the gasoline tax.

A commission appointed last year by Gov. Tom Wolf recommended a series of steps to phase out reliance on the gasoline tax, including creating a method for hybrid and electric vehicle owners to help pay for transportation costs.