Question

Which of the following customary principles of International law has been codified and mentioned in Article 26 of the Vienna Convention on the Law of Treaties, 1969?

• A. Theory of consent
• B. Auto limitation theory
• C. Theory of Fundamental Rights
• D. Pacta Sunt Servanda

Hint:

Article 26 of the Vienna Convention is based on Pacta Sunt Servanda, meaning treaties must be performed in good faith.

Answer 1

The Correct Option is D

Concept: Article 26 of the Vienna Convention on the Law of Treaties, 1969 embodies the principle that treaties must be performed in good faith.

Step 1: Understand Pacta Sunt Servanda.
Pacta sunt servanda means agreements must be kept. \[ \text{Pacta Sunt Servanda} = \text{Treaties must be observed} \]

Step 2: Connect it with Article 26.
Article 26 states that every treaty in force is binding upon the parties and must be performed by them in good faith. \[ \text{Article 26} \Rightarrow \text{Binding force of treaties} \]

Step 3: Choose the correct option.
The customary principle codified in Article 26 is Pacta Sunt Servanda.