Any academic, industrial, or individual entity engaged in research in any country or region, and willing to abide by the USS Constitution, is eligible to join the USS.

Membership is categorized into individual, institutional, and society members.

Membership fees are determined based on the income group of the member's country. We follow the World Bank Country and Lending Groups classification. For reference, please visit: https://datahelpdesk.worldbank.org/knowledgebase/articles/906519-world-bank-country-and-lending-groups.