Various international and supranational organizations (like the EU and the ILO) as a member of, several international agreements concerning the employment law of Portugal has signed. Other agreements and contracts that are more general, but also affect the employment rights:
the United Nations Charter and Universal Declaration of Human Rights (particularly articles 23, 24 and 25), the International Covenant on Civil and Political Rights (in particular 8 in article 22) and Economic, Social and Cultural Rights and Human Rights (ratified by adequate reserves, the Portuguese Constitution, in particular by prohibiting the lockout), the European Convention. In addition, Portugal several countries (Germany, Belgium, France, Netherlands and Luxembourg) have signed bilateral agreements with migrant workers signed the rules, and in 1971 Brazil is a signatory to the similarities between Brazil and Portuguese.
Portuguese international law applicable in national law is the Constitution, the full integration of international law is governed by a general provision of Article 8, regulations and principles of international law in general or to become an integral part of Portuguese law. Therefore, the international conventions duly ratified or after its official publication, and international level, such as Portugal automatic binding rules of law enforcement.
The hierarchy of international law in national legislation a matter of some controversy among scholars of both law and jurisprudence. The authors present the most reasonable theory which states that in accordance with the law of international conventions on the national prevalence of common law. This ensures that the Rules of Portugal's international obligations and in line with automated recording system is contained in the Constitution.
On the other hand, from the perspective of international labor standards to the ILO's objectives and purposes appears to be the only solution.
International law and sovereign states, the Holy See and international organizations such as the structure and behavior of similar institutions is concerned.
The study has two main branches of international law (jus gentium) and international agreements and conventions (jus inter gentes) that combines theory is different and should not be confused.
International law is not "international private law", which refers to resolve the conflict of laws confused with..