Prior to the Federal Aid Highway Act of 1956 and the establishment of the Highway Trust Fund, roads were financed directly from the General Fund of the United States Department of the Treasury. The 1956 Act directed federal fuel tax to the Treasury’s General Fund to be used exclusively for highway construction and maintenance. The Highway Revenue Act, pre-dating the Fund, mandated a tax of three cents per gallon. This original Act, also known as Highway Revenue Act, was set to expire at the end of fiscal year 1972. In the late 1950s, the gas tax was increased to four cents. The 1982 Surface Transportation Assistance Act, approved by President Ronald Reagan in January 1983, increased the tax to nine cents with one cent going into a new Mass Transit Account to support public transport. In 1990, the gas tax was increased by President George H. W. Bush with the Omnibus Budget Reconciliation Act of 1990 to 14 cents, with 2.5 cents of the increase going to the Highway Fund. The other 2.5 cents of the Omnibus Act was directed towards deficit reduction. In 1993, President Clinton increased the gas tax to 18.4 cents with the Omnibus Budget Reconciliation Act of 1993 with all of the increase going towards deficit reduction. The Taxpayer Relief Act of 1997 redirected the 1993 increase to the newer Fund.