Convention on road signs and signals done at Vienna on 8 November 1968 : Amendment 1 (incorporating the amendments to the Convention which entered into force on 30 November 1995).

The Vienna Convention on Road Signs and Signals is an international treaty designed to increase road safety and aid international road traffic by standardising the road signs, traffic lights and road markings in use internationally. This convention was agreed upon by the United Nations Economic and Social Council at the UNESC Conference on Road Traffic in Vienna 7 October 1968 to 8 November 1968, and came into force 6 June 1978. This conference also produced the Vienna Convention on Road Traffic, which complements this legislation by standardising international traffic laws. This document incorporates the amendments to the Convention which entered into force on 30 November 1995.