# Law No. 6439 of September 1, 1977

> Brazilian law

**Wikidata**: [Q105659738](https://www.wikidata.org/wiki/Q105659738)  
**Source**: https://4ort.xyz/entity/law-no-6439-of-september-1-1977

## Summary
Law No. 6439 of September 1, 1977 is a Brazilian statute that institutes the National System of Social Security and Assistance along with other provisions. Enacted under the Presidency of Ernesto Geisel, it serves as a formal written document creating law within Brazil's federal jurisdiction. Known also as Lei nº 6439, de 1 de setembro de 1977 or Lei nº 6439/1977, the law was published on 1977-09-01.

## Key Facts
- Instance of: statute, a formal written document that creates law, including acts, executive orders, and by-laws (sitelink_count: 117)
- Aliases: Lei nº 6439, de 1 de setembro de 1977; Lei nº 6439/1977
- Publication date: 1977-09-01
- Approved by: Presidency of the Federative Republic of Brazil on 1977-09-01, with determination method  and signed by Ernesto Geisel
- Law digest: INSTITUI O SISTEMA NACIONAL DE PREVIDENCIA E ASSISTENCIA SOCIAL E DA OUTRAS PROVIDENCIAS.
- LexML Brazil ID: urn:lex:br:federal:lei:1977-09-01;6439
- Applies to jurisdiction: Brazil (federal)
- Country: Brazil
- Place of publication: Brazil
- Work available at URL: https://www.planalto.gov.br/ccivil_03/leis/l6439.htm
- Legal citation of this text: Lei nº 6439/1977
- Wikidata description: Brazilian law

## FAQs
**What does Law No. 6439 of September 1, 1977 establish?**  
It creates the National System of Social Security and Assistance while providing for additional measures.

**When and how was this law published and approved?**  
Published on 1977-09-01, it received approval from the Presidency of the Federative Republic of Brazil on the same date via determination method , under Ernesto Geisel.

**What are the official names and identifiers for this Brazilian statute?**  
Commonly called Lei nº 6439, de 1 de setembro de 1977 or Lei nº 6439/1977, it holds LexML Brazil ID urn:lex:br:federal:lei:1977-09-01;6439.

**Where can the full text of the law be accessed?**  
The document appears at https://www.planalto.gov.br/ccivil_03/leis/l6439.htm, with further references at https://legislacao.presidencia.gov.br/atos?tipo=LEI&numero=6439&ano=1977&data=01/09/1977&ato=27cEzZE9UNnRVTe15 and https://www.lexml.gov.br/urn/urn:lex:br:federal:lei:1977-09-01;6439.

**What jurisdiction does this law cover?**  
It applies to Brazil's federal level, as indicated by its LexML identifier and country association.

## Why It Matters
This statute formalized the National System of Social Security and Assistance in Brazil, establishing a foundational framework for previdência and social aid that addressed gaps in national welfare structures during the late 1970s. By defining core mechanisms through a presidential act under Ernesto Geisel, it integrated various provisions into federal law, influencing social policy administration and eligibility across the country. Its enduring citation as Lei nº 6439/1977 underscores its role in shaping Brazil's legal landscape for public assistance, with accessible texts ensuring ongoing reference for compliance and reform.

## Notable For
- Instituting Brazil's National System of Social Security and Assistance via a single comprehensive statute.
- Approval directly by President Ernesto Geisel on its publication date of 1977-09-01.
- Unique LexML identifier urn:lex:br:federal:lei:1977-09-01;6439 tying it precisely to federal Brazilian legislation.
- Dual aliases in Portuguese legal nomenclature: Lei nº 6439, de 1 de setembro de 1977 and Lei nº 6439/1977.
- Classification as a statute with ties to Wikidata item  for its law digest.

## Body
### Overview and Classification
Law No. 6439 of September 1, 1977 functions as a Brazilian law and instance of statute. A statute represents a formal written document that creates law, encompassing acts, executive orders, and by-laws, linked to a sitelink_count of 117. Its Wikidata description labels it straightforwardly as Brazilian law.

### Content and Purpose
The law_digest captures its core: INSTITUI O SISTEMA NACIONAL DE PREVIDENCIA E ASSISTENCIA SOCIAL E DA OUTRAS PROVIDENCIAS. This phrasing, sourced from  with retrieval date 2021-04-10, outlines the establishment of the national system alongside supplementary measures.

### Publication Details
Publication occurred on 1977-09-01. The place_of_publication aligns with Brazilian federal sources. Full text resides at work_available_at_url https://www.planalto.gov.br/ccivil_03/leis/l6439.htm, referenced as of 2021-02-17 via https://legislacao.presidencia.gov.br/atos?tipo=LEI&numero=6439&ano=1977&data=01/09/1977&ato=27cEzZE9UNnRVTe15.

### Approval Process
Approved_by the Presidency of the Federative Republic of Brazil. Qualifiers include point_in_time 1977-09-01, determination_method , and  Ernesto Geisel. Supporting reference from 2021-02-17 points to the legislation portal.

### Identifiers and Citations
Legal_citation_of_this_text stands as Lei nº 6439/1977, per 2021-01-28 LexML data. Lexml_brazil_id is urn:lex:br:federal:lei:1977-09-01;6439. Aliases encompass Lei nº 6439, de 1 de setembro de 1977.

### Jurisdiction and Country
Applies_to_jurisdiction covers Brazil's federal sphere, confirmed via LexML urn:lex:br:federal:lei:1977-09-01;6439 as of 2021-01-28. Country association reinforces this federal Brazilian context.

### Key References
Multiple sources underpin the data:
- LexML: https://www.lexml.gov.br/urn/urn:lex:br:federal:lei:1977-09-01;6439 (2021-01-28 for instance_of, country, place_of_publication, applies_to_jurisdiction, legal_citation).
- Presidência legislation: https://legislacao.presidencia.gov.br/atos?tipo=LEI&numero=6439&ano=1977&data=01/09/1977&ato=27cEzZE9UNnRVTe15 (2021-02-17 for approved_by, publication_date, work_available_at_url).
-  for law_digest (2021-04-10).

## References

1. [Source](https://www.lexml.gov.br/urn/urn:lex:br:federal:lei:1977-09-01;6439)
2. [Source](https://legislacao.presidencia.gov.br/atos?tipo=LEI&numero=6439&ano=1977&data=01/09/1977&ato=27cEzZE9UNnRVTe15)
3. LexML Brasil