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Supreme Court validates 8-1 law reducing Pará park for Ferrogrão railway construction

2 sources · 22 May 2026
2 agreed · 2 partial · 0 conflicts

The Federal Supreme Court validated by 8 votes to 1 on Thursday (May 21, 2026) Law 13.452/2017 that reduced by 862 hectares the Jamanxim National Park in Pará to enable construction of the Ferrogrão railway linking Sinop (MT) to the Port of Miritituba (PA). The decision was made in Direct Action of Unconstitutionality (ADI) 6553, reported by Justice Alexandre de Moraes.

Press quotes (2)
Poder360

"O Supremo Tribunal Federal validou nesta 5ª feira (21.mai.2026) a lei que reduziu os limites do Parque Nacional do Jamanxim, no Pará, para permitir a construção da Ferrogrão, ferrovia que ligará o Estado ao Mato Grosso. Por 8 votos a 1, a Corte declarou a constitucionalidade da Lei 13.452 de 2017"

Noticias

"O tema é discutido na Ação Direta de Inconstitucionalidade (ADI) 6553, relatada pelo ministro Alexandre de Moraes."

PSOL had questioned the law's constitutionality, alleging that the conservation unit's reduction could not have been implemented by provisional measure and that the proposal affects indigenous community rights. Rapporteur Alexandre de Moraes understood there was no irregularity because the park's boundary alteration only occurred after converting the provisional measure into law, also dismissing allegations of environmental protection loss.

Press quotes (2)
Exame

"Segundo o partido, a medida retirou cerca de 862 hectares da unidade de conservação e não poderia ter sido implementada por meio de medida provisória, mesmo após a conversão em lei. A legenda também alegou que a proposta afeta direitos de comunidades indígenas."

Noticias

"O ministro Alexandre de Moraes entendeu que não houve irregularidade, porque a alteração dos limites do parque só ocorreu após a conversão da medida provisória em lei. [...] O relator também afastou a alegação de perda de proteção ambiental"

The Ferrogrão project was formulated during the Dilma Rousseff government and later integrated into the Investment Partnership Program (PPI) under Michel Temer's administration, which issued the provisional measure converted into the questioned law. The railway is defended by agribusiness representatives as infrastructure for transporting soybean and corn production from the Center-West, while environmentalists and indigenous leaders argue the route crosses an integral protection area.

Press quotes (2)
Exame

"O projeto foi formulado durante o governo da ex-presidente Dilma Rousseff (PT). Em 2016, após o impeachment, a iniciativa passou a integrar o Programa de Parcerias de Investimentos (PPI) da gestão de Michel Temer (MDB)."

Exame

"Representantes do agronegócio defendem a Ferrogrão como uma estrutura voltada ao transporte da produção de soja e milho do Centro-Oeste. Ambientalistas e lideranças indígenas argumentam que o traçado previsto atravessa uma área de proteção integral."

Justices clarified during the trial that the decision does not represent immediate authorization for construction start, which still depends on environmental licensing compliance and other legal authorizations. The trial had begun in October 2025 and resumed after Justice Flávio Dino's request for more time to analyze.

Press quotes (2)
Exame

"Durante o julgamento, os ministros afirmaram que a decisão não representa autorização imediata para o início das obras. O projeto ainda depende do cumprimento de etapas legais, incluindo licenciamento ambiental e demais autorizações previstas na legislação."

Exame

"O julgamento começou em outubro do ano passado."

1. What we know (2)

Decision was made by 8 votes to 1 maintaining the law's constitutionality

2 sources Poder360 Exame

Project still depends on environmental licensing to start construction

2 sources Exame Jovem Pan
2. Where coverage thins out (2)

Covered by only some sources, or where the accounts diverge.

Covered by only some sources (2)

Justice Flávio Dino proposed conditions for the law's validity

Reported by: Jovem Pan
Did not cover: Exame

Federal deputies from PL-MT celebrated the STF decision

Reported by: Jovem Pan
Did not cover: Exame
3. What we don't know yet (3)
  • What were the specific grounds of the votes from other justices besides the rapporteur?

    Why it's still unknown: Sources mention the final score but do not detail each justice's arguments individually

    Did not cover: Exame Jovem Pan
  • What is the timeline and total investment planned for Ferrogrão construction?

    Why it's still unknown: Attempt to obtain technical project specifications failed: FactCard marked as RETRIEVAL_REQUIRED

    Did not cover: Exame Jovem Pan
  • What are the next procedural steps after the STF decision?

    Why it's still unknown: Sources do not specify available appeals or deadlines for implementing the decision

    Did not cover: Exame Jovem Pan

All sources

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