ANNAPOLIS, Md. (CBSDC) – Gov. Martin O’Malley wants to raise gas prices in Maryland in order to bolster transportation revenue.

Under the proposal, a six-percent sales tax would be added on top of the state’s current 23-cent per gallon flat tax on fuel. The increase would be rolled out over the course of the next three years.

The average cost of a gallon of regular unleaded gas in the state is $3.48, a 50-cent from this time one year ago.

The good news for Maryland drivers? The proposal is not expected to pass in its current fashion.

The Washington Post reports the General Assembly is not expected to approve such a steep price hike.