Egypt is party to a number of international conventions, including the 1951 Convention Relating to the Status of Refugees, the 1967 Casablanca Protocol (signed in 1981), and the 1989 UN Convention on the Rights of the Child. Egypt acceded to the 1951 Convention in 1981 with a number of reservations. There are also bilateral agreements between the Egyptian and Sudanese governments, including the 1974 Nile Valley Agreement and the 2004 Four Freedoms Agreement and the 1974 Nile Valley Agreement, permitting free movement of goods and people across the border.