Recently the IOA has introduced the Research Member grade currently as a specific subset of the Associate Membership grade. Attached is an IOA Bulletin article that was published in the March-April issue of the Acoustics Bulletin.
For specifics on various grades of membership including the new Research Member grade, go to https://www.ioa.org.uk/membership
For membership queries, you can contact membershipioa [dot] org [dot] uk (membership[at]ioa[dot]org[dot]uk)
Attached Documents