Key Takeaways:
- The Supreme Federal Court (STF) unanimously declared UEA regional quotas unconstitutional.
- The ruling struck down requirements favouring candidates from specific Amazonan regions and ethnic groups.
- Effects will apply only to future selection processes to preserve legal certainty.
The Supreme Federal Court (STF) of Brazil has unanimously declared that certain regional quota provisions for the State University of Amazonas (UEA) are unconstitutional. The decision, issued in Direct Action of Unconstitutionality (ADI) 5650 brought by the Attorney-General’s Office, struck down rules that had reserved places and set eligibility requirements based solely on local geographic and ethnic criteria.
UEA regional quotas ruled unconstitutional
The Court invalidated provisions that required proof of completion of basic or compensatory education within the state, as well as a rule that reserved 50% of places in health courses for students from the interior of Amazonas. Another clause that confined Indigenous quotas to members of ethnic groups located exclusively within the state was also struck down.
Reporting the judgment, Justice Nunes Marques said affirmative action measures remain valid where they adopt ethnic‑racial or socio‑economic criteria intended to reduce structural inequalities arising from historical disadvantage. He stressed, however, that measures based purely on geography or regional origin create distinctions between Brazilians that the Federal Constitution does not permit.
To protect legal certainty and avoid retroactive disruption, the STF limited the decision’s effects to future selection processes. Students already enrolled or graduated under the former rules will retain their rights. The plenary also considered part of the analysis moot regarding a provision that had previously been declared unconstitutional in a separate extraordinary appeal which sought to reserve 80% of vacancies for candidates who completed their entire secondary education in Amazonas.
Implications for university policy and access
The ruling forces UEA and state lawmakers to review admissions policies that relied on strict regional criteria. Universities and public authorities will need to consider alternative affirmative action measures that align with constitutional standards, such as criteria based on socio‑economic disadvantage or race and ethnicity when those categories reflect historic exclusion.
Legal experts say the decision clarifies the boundary between legitimate affirmative action and measures that risk fragmenting national citizenship by privileging applicants solely on the basis of local origin. Advocates for regional access had argued that the measures sought to address the Amazon’s geographic isolation and unequal educational opportunities. Opponents maintained those rules discriminated against Brazilians from other states and contravened constitutional guarantees of equality.
Administrative authorities now face a period of adjustment. Admissions guidelines for future selection cycles will have to be rewritten and public information campaigns will be necessary to explain the new rules to applicants. State legislators who drafted the invalidated provisions may consider revisiting them to craft lawful policies that target socio‑economic disadvantage without relying exclusively on regional origin.
Next steps and broader context
The STF decision is narrowly tailored to the specific provisions under review and does not bar affirmative action more broadly. It sets a precedent concerning the limits of geographically based reservation schemes and reinforces that affirmative action in Brazil must be anchored to constitutionally recognised criteria. For the time being, the immediate practical effect will be felt in forthcoming UEA admission cycles, while current students remain unaffected.
As institutions adapt, the ruling will likely prompt debates at state and national levels about how to reconcile local access concerns with constitutional equality. The Court’s emphasis on race and socio‑economic criteria signals the accepted pathways for crafting future policies that aim to widen higher education access in Brazil.

















