[Part 0] Fundamental Principles

Article 8 International law

1. The rules and principles of general or common international law shall form an integral part of Portuguese law.

2. The rules set out in duly ratified or passed international agreements shall come into force in Portuguese internal law once they have been officially published, and shall remain so for as long as they are internationally binding on the Portuguese state.

3. Rules issued by the competent bodies of international organisations to which Portugal belongs shall come directly into force in Portuguese internal law, on condition that this is laid down in the respective constituent treaties.

4. The provisions of the treaties that govern the European Union and the rules issued by its institutions in the exercise of their respective responsibilities shall apply in Portuguese internal law in accordance with Union law and with respect for the fundamental principles of a democratic state based on the rule of law .