Vienna Convention (CISG): What is it and how does it affect your international contracts?

In an increasingly globalized world, international commercial transactions are part of the daily routine for many companies. However, the diversity of legal systems can generate uncertainty and disputes. This is where the United Nations Convention on Contracts for the International Sale of Goods of 1980 comes into play, better known as the Vienna Convention or CISG (by its English acronym).

Understanding the CISG is essential for any company or professional involved in cross-border trade, as it may determine the applicable law to their sales contracts and, ultimately, how potential disputes will be resolved.

1. What is the Vienna Convention (CISG)?

The CISG is an international treaty that establishes a uniform set of rules for contracts for the international sale of goods. Its main purpose is to facilitate international trade by providing a common legal framework, thus avoiding the need to determine which national law governs a contract. Currently, over 90 countries are parties to the Convention, including Spain.

2. When does the CISG apply?

The CISG applies automatically to contracts for the sale of goods between parties whose places of business are located in different States that are Contracting States to the Convention. It may also apply when the private international law rules of the forum lead to the application of the law of a Contracting State, even if one of the parties does not have its place of business in a Contracting State. However, some countries have made reservations regarding this basis of application, so its applicability must be assessed on a case-by-case basis.

It is essential to note that the parties may exclude the application of the CISG, in whole or in part, or modify its effects, through an express clause in their contract. If they do not do so, the Convention will apply by default.

3. What matters are governed by the CISG?

The CISG covers the following key aspects of contracts for the international sale of goods:

• Formation of the contract: It governs the offer, acceptance, and the moment the contract is concluded.
• Obligations of the seller: It includes the delivery of the goods, their conformity with the contract, and the obligation to transfer ownership.
• Obligations of the buyer: It encompasses payment of the price and taking delivery of the goods.
• Passing of risk: It determines when the risk of loss or damage to the goods passes from the seller to the buyer.
• Breach of contract and remedies: It establishes the consequences of breach and the parties’ rights, such as avoidance of the contract, damages, or specific performance.

It is important to note that the CISG does not govern the validity of the contract or the effects of the contract on the property in the goods (except for the passing of risk), nor does it regulate liability for death or personal injury caused by the goods. These aspects are governed by the applicable national law.

4. Advantages of applying the CISG

Applying the CISG offers several advantages:

• Uniformity and predictability: It provides a clear and uniform set of rules that reduce legal uncertainty and the costs associated with determining the applicable law.
• Neutrality: As an international treaty, it avoids the application of one party’s domestic law, which can be perceived as more fair and balanced.
• Flexibility: It allows the parties to adapt their contractual terms to their specific needs, provided that they do not contravene the fundamental principles of the Convention.
• Promotion of trade: By simplifying the legal framework, it facilitates international transactions and reduces trade barriers.

5. How does the CISG affect contract drafting?

Since the CISG applies automatically unless expressly excluded, familiarity with it is essential when drafting international sales contracts. Here are some key considerations:

• Exclusion clause: If the parties wish for a specific national law to apply instead of the CISG, they must include a clear and explicit clause in the contract. For example: “This contract shall be governed by Spanish law, with the express exclusion of the United Nations Convention on Contracts for the International Sale of Goods (CISG).”
• Consistency with the CISG: If the parties intend for the CISG to apply, it is advisable that the contractual clauses be compatible with its provisions to avoid contradictions.
• Contracts with non-signatory parties: If one of the parties is located in a country that is not a Contracting State to the CISG, the choice of the applicable law becomes even more relevant.

6. Conclusion

The Vienna Convention (CISG) is a fundamental pillar of international trade, providing a harmonized legal framework that simplifies cross-border transactions. For any company operating internationally, understanding its principles and knowing how it affects sales contracts is crucial to avoid surprises and ensure a smooth and secure commercial operation.

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