# Law No. 4221 of May 8, 1963

> Brazilian law

**Wikidata**: [Q105648464](https://www.wikidata.org/wiki/Q105648464)  
**Source**: https://4ort.xyz/entity/law-no-4221-of-may-8-1963

## Summary
Law No. 4221 of May 8, 1963 is a Brazilian federal statute enacted to amend specific provisions of the Brazilian Aeronautical Code (Código Brasileiro do Ar). Promulgated by President João Goulart, this legal document was published on May 8, 1963, and applies to the jurisdiction of Brazil. It is formally classified as a statute and is officially cited as Lei nº 4221/1963.

## Key Facts
- **Official Title:** Lei nº 4221, de 8 de maio de 1963
- **Alternative Name:** Lei nº 4221/1963
- **Classification:** Instance of a statute
- **Country:** Brazil
- **Jurisdiction:** Applies to Brazil
- **Subject:** Amends provisions of the Brazilian Aeronautical Code ("ALTERA DISPOSITIVOS DO CODIGO BRASILEIRO DO AR")
- **Promulgation Date:** May 8, 1963
- **Approved By:** Presidency of the Federative Republic of Brazil
- **Signatory:** João Goulart
- **Place of Publication:** Brasília
- **Language:** Brazilian Portuguese
- **Lexml Brazil ID:** urn:lex:br:federal:lei:1963-05-08;4221
- **Official URL:** https://www.planalto.gov.br/ccivil_03/leis/1950-1969/l4221.htm

## FAQs
**What is the primary purpose of Law No. 4221?**
The law was enacted to alter and amend specific provisions within the Brazilian Aeronautical Code (Código Brasileiro do Ar), which governs civil aviation regulations in Brazil.

**Who signed and promulgated Law No. 4221?**
The law was promulgated by the Presidency of the Federative Republic of Brazil, with João Goulart serving as the head of state who approved the legislation on May 8, 1963.

**Where can the official text of Law No. 4221 be accessed?**
The full text of the law is available at the official Planalto Palace website at https://www.planalto.gov.br/ccivil_03/leis/1950-1969/l4221.htm and is identified by the Lexml Brazil ID: urn:lex:br:federal:lei:1963-05-08;4221.

## Why It Matters
Law No. 4221 of May 8, 1963 holds significance as a specific legislative instrument that modified the Brazilian Aeronautical Code, reflecting the evolving regulatory needs of Brazil's aviation sector during the early 1960s. As a statute, it represents the formal legal mechanism through which the federal government, under President João Goulart, updated national aviation policies. The law is part of the broader framework of Brazilian federal legislation and contributes to the body of statutory law that governs the country. Its existence demonstrates the ongoing refinement of legal codes essential for the safety, administration, and operation of civil aviation, a critical component of national infrastructure and development.

## Notable For
- **Amendment of the Brazilian Aeronautical Code:** Specifically targeted and altered provisions within this foundational aviation law.
- **Historical Context:** Enacted during the presidency of João Goulart, a significant period in Brazilian political history.
- **Federal Statute:** Represents a formal exercise of federal legislative power in Brazil.
- **Official Digital Record:** Preserved and accessible through the official Brazilian government's legal database (Planalto) and assigned a unique Lexml identifier.

## Body

### Legislative Classification and Formal Identification
Law No. 4221 of May 8, 1963 is formally classified as an instance of a **statute**, a type of formal written document that creates or amends law. As a statute, it is a subclass of written work, document, and rule. Its function is to act as a manifestation of statutory law. The law's legal citation is "Lei nº 4221/1963," and it is cataloged under the Lexml Brazil ID `urn:lex:br:federal:lei:1963-05-08;4221`. This unique identifier ensures its precise identification within Brazil's vast legal framework. The language of the document is Brazilian Portuguese.

### Historical and Political Context
The law was promulgated on **May 8, 1963**, and was published in **Brasília**, the federal capital of Brazil. Its approval was granted by the **Presidency of the Federative Republic of Brazil**, with the promulgation signed by President **João Goulart**, who served as the head of state at that time. This period in Brazilian history, the early 1960s, was marked by significant political and social developments, and this law represents a specific legislative action taken during Goulart's administration.

### Subject Matter and Jurisdiction
The primary subject of Law No. 4221 is **change**, specifically stated as an "Alteração" (alteration or amendment). The law's main function, as defined in its law digest, is to "ALTER DISPOSITIVOS DO CODIGO BRASILEIRO DO AR" (Alter Provisions of the Brazilian Aeronautical Code). The **Brazilian Aeronautical Code** (Código Brasileiro do Ar) is the principal set of regulations governing civil aviation in the country. By amending this code, Law No. 4221 played a direct role in updating and refining the legal standards for aviation. The law's application is specific to the jurisdiction of **Brazil**.

### Accessibility and Official Resources
The full text of Law No. 4221 is an official legal document that is part of the public record. It is available for public access via an official government URL hosted by the **Planalto Palace** (the seat of the executive branch of the Brazilian government). The URL is `https://www.planalto.gov.br/ccivil_03/leis/1950-1969/l4221.htm`. This accessibility aligns with the principle that statutes, as "edicts of government," are generally in the public domain, ensuring citizens have access to the laws that govern them. The law is also tracked within Wikimedia projects as part of the "WikiProject Brazilian Laws."

## References

1. [Source](https://www.lexml.gov.br/urn/urn:lex:br:federal:lei:1963-05-08;4221)
2. [Source](https://legislacao.presidencia.gov.br/atos?tipo=LEI&numero=4221&ano=1963&data=08/05/1963&ato=813cXTq50MVRVTf10)
3. LexML Brasil