The World Puzzle Federation is an association of legal bodies. The WPF follows the Olympic model if possible. Each country can be represented by one legal body only. In general the legal body has to be associated with puzzles. It could be a puzzle club, publisher of puzzles, newspaper et cetera.

Below are some additional criteria and information on the membership fee. Membership can be possible without meeting these criteria, but only as long as there are no applicants from the same country meeting all these criteria. For more information, or to request an application form, please contact the WPF's General Secretary Peter Ritmeester.

Criteria for membership (see also the WPF's Rules and Regulations)

• Conducting open, national qualifying tournaments to select members of a World Puzzle Championship team ;
• Promoting and publicizing these tournaments;
• Encouraging quality and innovation in puzzling;
• Representing the interests of the WPF in the member's country.

Membership fee

• Annual membership runs from July 1 until June 30 the next year.
• Each year at the General Assembly (usually in October) the membership fee is established for the year starting July 1 the next year.
• At present, the membership fee is a minimum of 250 Euros a year. Members that are commercial companies are encouraged to pay 1000 Euros a year. Exceptions to these fees can be made by the board.