The Oklahoma Department of Transportation is putting a green foot forward.
Gov. Mary Fallin has announced the addition of 160 compressed natural gas vehicles to the department's fleet.
Four Honda Civics are already available for use, while 156 Dodge Ram pickups should be ready by January.
The new vehicles cost around $5 million, but the state expects to recoup the expense in fuel and maintenance costs.
State officials say they plan to replace more than 90 percent of ODOT and Oklahoma Turnpike Authority vehicleswith CNG vehicles over the next three years.
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A day after tornadoes ripped through Oklahoma, battering towns along the way, Governor Mary Fallin is set to tour the damaged area.