On Friday, March 29, 2013, the Maryland Senate passed the first gas tax increase in 20 years. The Senate voted 27-20 to approve the increase. The cost per gallon of gas will increase by about 4¢ this summer and 13-20¢ per gallon by the year 2016. The bill had already passed the Maryland House of Delegates and was sponsored by Governor Martin O’Malley. Governor O’Malley is expected to sign it into law.