.za history of usage: "ZAR" serves as the ISO 4217 currency code for the South African rand. The international vehicle code for South Africa has been "ZA" since 1936. Additionally, South African aircraft registration prefixes also start with "Z". .ZA has a Second Level Domain (SLD) Structure. ZADNA removed a number of domains from the .za zone on the 7 August 2009 Currently around 29.39% of the .za internet is served via secured HTTPS protocol, with the Let's Encrypt Authority X3 being the most popular SSL certificate. Apache is the most popular web server, serving 66.56% of the .za domains, followed
Convention on the Law of the Non-Navigational Uses of International Watercourses United Nations in 1970 to prepare viable international guidelines for water use comparable to The Helsinki Rules on the Uses of the Waters of International Rivers, which had been approved by the International Law Association in 1966 but which failed to address aquifers that were not connected to a drainage basin. After the ILC completed its project in 1994, the UN Sixth Committee drafted the Convention on the Law of Non-Navigational Uses of International Watercourses based on their proposal. The General Assembly adopted the document on 21 May 1997 with only three dissenting in a vote of 106. The document