The draft core text of Trade in Services Agreement (TiSA) contains the most general provisional language agreed by the Parties, establishing the overall legal architecture of TiSA. Specialist areas, such as maritime transport services, or electronic commerce, are dealt with in "Annexes", which are negotiated alongside the core text. WikiLeaks has previously published a large number of secret TiSA Annexes. WikiLeaks' publication of the present core text for the first time gives the public a picture of the scale and scope of TiSA, and illustrates the overarching legal framework for previously published Annexes. The draft core text dates from April 2015, shortly after the 12th round of TiSA negotiations held from 13-17 April 2015 in Geneva, Switzerland.