This documents supplement contains the latest versions of arbitration's primary sources, including the New York Convention (listing the 159 country parties as of October, 2018), the UNCITRAL Arbitration Rules and UNCITRAL Model Law (including the 2006 amendments), national arbitration statutes, leading institutional rules, and Codes of Conduct for arbitrators. It contains important recent changes in these sources, such as the new 2017 ICC Arbitration Rules; the Indian Arbitration Act as amended in 2015; the 2013 amendment to the UNCITRAL Arbitration Rules; and a new document, the 2014 UNCITRAL Rules on Transparency in Treaty-Based Investor-State Arbitration.