RC51 is a Research Committee of the International Sociological Association.
Joining RC51, therefore, means joining ISA and choosing RC51 in the affiliation section of the registration form.
Dues for category A countries: USD 25 (students USD 15) for a 4-year period.
Dues for category B and C countries: USD 10 for a 4-year period.
A life membership in RC51 is a onetime payment of USD 50 (USD 20 for country category B or C) after the age (70) when ISA life-membership becomes possible according to the ISA rules.