Amendments to the Society's Constitution were adopted by Annual General Meetings of the Society in January 2006, 2008, 2012 and 2017.

Here is the current version as approved at an Annual General Meeting in 2017.

Some previous versions of the Society's Constitution may be found in The Phycologist No. 37 (March 1994) and The Phycologist No. 42 (November 1995. As approved at the 1996 Annual General Meeting).

Proposals for amending or altering the Constitution may be sent to the Society's Secretary: