# Part II, Title VI: Constitutional Guarantees
**Articles: 134-139**

## Core Idea
Constitutional guarantees ensure the supremacy of the Constitution and protect the fundamental structure of the Republic. The Constitutional Court is the central institution for constitutional review, while the amendment procedure protects the Constitution from arbitrary changes, with special protection for the republican form.

## Frameworks Introduced

### Constitutional Court
- **Composition**: 15 judges elected by: 5 by Parliament (3 by Chamber of Deputies, 2 by Senate), 5 by President of Republic, 5 by supreme ordinary and administrative courts (Art. 135)
- **Term**: 9 years from date of oath, cannot be re-elected, office incompatible with membership in Parliament or Regional Council
- **Jurisdiction**: 
  - Judges constitutionality of laws and acts with force of law (State and Regions)
  - Resolves conflicts of attribution between powers of State and between State and Regions
  - Judges accusations against President of Republic (high treason, attack on Constitution)

### Constitutional Review
- **Abstract Review**: Can review constitutionality of laws before their application
- **Concrete Review**: Judges can raise questions of constitutionality during proceedings
- **Effects**: Declarations of unconstitutionality have erga omnes effect (bind all)

## Constitutional Amendment
- **Initiative**: Can be proposed by members of Parliament, Government, Regional Councils, or 500,000 voters
- **Procedure**: Each chamber approves text twice with interval of at least 3 months between readings
- **Majority**: Second approval requires absolute majority in each chamber
- **Referendum**: If requested by one-fifth of members of either chamber, one million voters, or five Regional Councils, constitutional law is submitted to popular referendum
- **Limitations**: No amendment can alter the Republican form of the State (Art. 139)

## Key Concepts
- **Constitutional Laws**: Special category of laws that amend or supplement the Constitution, requiring aggravated procedure
- **Rigid Constitution**: Constitution is difficult to amend, requiring special majorities and procedures
- **Eternity Clause**: Republican form is unamendable (Art. 139)
- **Constitutional Supremacy**: Constitution is supreme norm of legal order

### Amendment History
- 1948: Original Constitution enters into force
- Multiple amendments since, including on regional autonomy, parliamentary composition, and judicial system

## Mental Models
- Use **Constitutional Court as guardian** — final interpreter and protector of Constitution
- Think of **amendment as exceptional** — Constitution is meant to be stable and enduring
- Apply **republican form protection** — some principles are fundamental and unchangeable

## Anti-patterns
- **Judicial activism**: Court exceeding its constitutional role
- **Amending republican form**: Any attempt to change republican nature violates Art. 139
- **Ignoring Court rulings**: Public powers must comply with constitutional interpretations

## Key Takeaways
1. Constitutional Court is guardian of constitutional supremacy with 15 judges
2. Constitutional review ensures laws conform to Constitution
3. Amendment procedure is rigid with multiple stages and special majorities
4. Republican form cannot be amended under any circumstances
5. Constitutional guarantees protect both structure and rights

## Connects To
- **All Parts**: Constitutional Court interprets and applies entire Constitution
- **Fundamental Principles**: Guarantees protect the constitutional values and structure
- **Part I**: Constitutional Court protects fundamental rights