I would like to announce the availability of my new research paper on international expositions law. The title of this paper is Steve Charnovitz, "Why the International Exhibitions Bureau Should Choose Minneapolis for Global Expo 2023." The Bureau of International Expositions (BIE) will be making this important decision in November 2017. The working paper explains how the United States recently strengthened its bid by a remarkably rapid bipartisan action by the US Congress and Trump Administration to rejoin the BIE which the United States had quit in 2002. This paper also reviews the legislative history of US membership in the BIE treaty going back to 1968 and provides a brief overview of the role of the BIE in supervising world's fairs and expos going back to 1928. The BIE is an unusual treaty in having its own customs regime and in making decisions by a majority vote. The paper describes the three competing bids for the expo by Argentina, Poland, and the United States, and discusses the political and legal factors that may be in play in choosing the winning proposal. The paper explains why the bid by Minneapolis/United States is the superior proposal because of the salience and definiteness of its proposed theme of "Healthy People, Healthy Planet." The paper can be downloaded from SSRN at https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3053623.