CONSTITUTION  -  ARTICLE IV   Membership

1. The Union shall consist of a number of Adhering Bodies adequately representing organizations concerned with studies in physiological sciences.

2. The official organization representing the physiological scientists of a country or territory shall be called the Adhering Body (National Academy, Research Council, Royal Society, etc.), the societies of physiological scientists will be designated as Supporting Societies. In countries or territories with no national representation the society of physiologists itself may be the Adhering Body.

3. There shall be Regional Members which are regional federations or associations of national societies of physiological scientists from a continent or other geographical entity. Regional members may send an observer without vote to the meetings of the General Assembly.

4. There shall be Associate Members of the Union to represent physiologists in countries or territories where physiological science is not sufficiently developed to justify full membership. No dues will be required of an Associate Member, but it may send an observer without vote to the meetings of the General Assembly.

5. There shall be Affiliated Societies which are international scientific societies representing branches of science which overlap with physiology. They may send an observer without vote to the meetings of the General Assembly.

6. There shall be Special Members such as research and development institutions and laboratories, industrial organizations and production units, and any other bodies or individuals interested in the aims of the Union. They shall be admitted by vote of Council. Special Members are entitled to receive advance notice of congresses and symposia sponsored by the IUPS and other appropriate information concerning IUPS activities. Each Special Member may send an observer without vote to the meetings of the General Assembly.