Associates
The IAU status of "Associate" is offered by invitation exclusively to individuals who are not IAU members, but are actively involved in the work of the IAU, as members of a Working Group, a Commission, or a Division. The status is temporary and must be reconfirmed at the time of the General Assemblies. Associates are invited and appointed by the leadership of an IAU Working Group, Commission, or Division with which they are working, according to the IAU Working Rules (Section XII).