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.
Information about joining ISA could be find on ISA website both for individual and collective members.
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.