In June-August 2015 the Council Working Group of the International Telecommunications Union (ITU) conducted an open public consultation on
IXPs.
Formally stated, the issue consulted upon was "With a view to discussing the establishment of Internet eXchange Points (IXPs) to advance connectivity, improve service quality and increase network stability and resilience, fostering competition and reducing interconnection costs, as proposed by Opinion 1 of WTPF-13 and consistent with PP-14 Resolutions 101 and 102, stakeholders are invited to elaborate and exemplify on the challenges faced and identify widely accepted best practices for the design, installation and operation of IXPs."
The Internet eXchange Federation (IX-F) submitted a formal contribution to this consultation on behalf of the global IXP operator community, which sets out the role of IXP associations in developing best practices, as well as other functions.
You can read the submission here