An undated file photo of a gas pump. TRENTON - New Jersey’s gas tax is going up 9.3 cents a gallon, a roughly 22% increase, Democratic Gov.
Phil Murphy’s administration said Friday.The increase to 50.7 cents a gallon from 41.4 cents goes into effect on Oct. 1.It stems from a 2016 law that requires the state fund supporting bridge and road infrastructure maintain a $2 billion program annually.