The World English-Language Scrabble Players' Association (WESPA) is the overarching global body for English-language national Scrabble associations and similar entities. Formation WESPA was formed in the course of a players' meeting at the 2003 World Scrabble Championship in Kuala Lumpur, Malaysia, and formally constituted on 17 November 2005 at its first Biennial General Meeting held in London. BGMs are now held at each World Scrabble Championship (taking place every odd year), and there are currently 24 member organisations. WESPA was created to represent the interests of international Scrabble competitors and national bodies worldwide. Its main functions are to promote global recognition of Scrabble as a serious competitive activity; to provide for the benefit of members in pursuing the game; to further the best interests of Scrabble and international tournament players; to represent such players in dealings with other bodies, including the trademark owners of the game; to promulgate and encourage international convergence towards common standards and norms (including international rules, word lists and ratings); to organise global competitions and events; to publish relevant material; and to maintain a website for the benefit of the game and its players. The trademark for Scrabble is owned by Hasbro in North America and Mattel in the rest of the world. Achievements to date have included the preparation of a set of international rules, the publication of a WESPA-endorsed word list which is valid for international tournament play, and the promulgation of international Scrabble ratings. Rules Following a six-month worldwide consultation process, the first version of WESPA's rules for global Scrabble was released in August 2009. The rules were based on key elements of existing rules that were in force in various national associations, which were synthesised to create global best practice. Following feedback from their use in various international tournaments, extensive reviews took place prior to the issue of version two in November 2010, which was used at the 2011 World Scrabble Championship in Warsaw, Poland, and other international events such as the Causeway Challenge. Version three was released in 2015. A number of national associations have adopted WESPA rules for domestic use, including the Association of British Scrabble Players. Word list The word source currently in use for international play, known as Collins Scrabble Words or CSW (formerly Official Scrabble Words or OSW) is not derived from a single dictionary, but combines three components: Collins (7th edition, 2005), Chambers (1998 edition) and