Gov. Martin O'Malley says the state's gas tax doesn't raise as much as it use to.
O'Malley says the state's 23.5 cent gas tax -- which hasn't been raised since 1992 -- doesn't raise as much as it used to, partly because cars are getting better gas mileage.
One option would be to apply the state's 6 percent sales tax to gas purchases, instead of taxing by the gallon.
Gas in Maryland currently sells for $3.90 per gallon, more than $1 higher than at this time in 2010. AAA Mid-Atlantic says Maryland is just 15 cents below its highest-ever gas price of $4.05, set in June 2008.
Transportation funds depend primarily on gas tax revenues.
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