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How to read legal citations in Brazil

Brazilian court decisions are identified by the court, the kind of action and a number. Statutes are cited by number and year, with the article.

Updated October 2026. Spotted a mistake? Tell us.

Style guide: ABNT standards and court conventions. Brazilian citations use the court's abbreviation and the type of action with its number.

Real citations, decoded

Click or hover over any underlined piece to see what it means.

A Supreme Federal Court decision Case

, ()

  1. Court STF
    Supremo Tribunal Federal, the Federal Supreme Court.
  2. Type of action ADI
    Ação Direta de Inconstitucionalidade, a direct action asking the court to strike down a law.
  3. Number 4277
    The case number. This case recognised same-sex stable unions, together with ADPF 132.
  4. Year 2011
    The year of the judgment.
Full citation: STF, ADI 4277 (2011)

A Civil Code article Statute

(Código Civil),

  1. Statute Lei nº 10.406/2002
    Law number 10,406 of 2002, which is the Civil Code.
  2. Article art. 186
    Article 186, on unlawful acts.
Full citation: Lei nº 10.406/2002 (Código Civil), art. 186

A constitutional article Constitution

,

  1. Document CF/1988
    Constituição Federal of 1988.
  2. Article art. 5º
    Article 5, the list of fundamental rights. º marks the ordinal numbers up to nine.
Full citation: CF/1988, art. 5º

Things to remember

  • RE means recurso extraordinário (an appeal on constitutional grounds). HC means habeas corpus. REsp is a special appeal to the Superior Court of Justice (STJ).
  • Súmulas are short statements of settled case law, cited by number, such as Súmula 11 do STF.

Where to find the text, free

To understand how courts and law fit together in Brazil, read the Brazil profile in the Legal Families Atlas.

Other legal systems

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TheLawToKnow Tools’s citation guide is an educational overview of standard conventions. Courts and journals sometimes vary, so check the style guide before submitting or publishing. It is not legal advice. Report a mistake.