Certified Translation in France and Japan: Understanding Different Requirements

Whether for work, study, legal proceedings or a move abroad, there are plenty of reasons why official documents need to cross international borders. These days, documents can cross borders in seconds. However, getting a translation officially accepted at the other end can be more complicated.

For individuals and businesses moving documents between France and Japan, the difficulty is that the two countries approach official translations differently. While terms such as ‘certified’, ‘sworn’, ‘notarised’ and ‘official’ may sound interchangeable, they can refer to quite different processes. Meeting the requirements in one country does not necessarily mean meeting them in the other.

This matters when translated documents are being submitted to courts, government departments, universities or other official bodies. An accurate translation is essential, but so is understanding what the receiving organisation will actually accept.

In this article, we’ll explain the differences between certified translations in France and Japan and how you can determine which process applies to your documents.

What is a traduction assermentée in France?

In France, an official translation is commonly referred to as a traductions assermentée, or sworn translation. These are produced by translators who have been formally approved as judicial experts (experts judiciaires) and are registered with a French Court of Appeal (cour d’appel).

This status is an important part of the French system. Rather than any professional translator being able to certify their own work for official purposes, approved translators appear on lists maintained by the French courts. The Cour de cassation provides access to these lists, where written translation is recognised as a specific area of judicial expertise.

A translation completed by an approved translator can therefore be used where French authorities specifically require an official translation. Depending on the procedure, this might include civil-status documents such as birth and marriage certificates, documents used in nationality or immigration applications, or evidence submitted in legal and administrative proceedings.

However, not every foreign document used in France automatically requires a sworn translation. Requirements vary by document and procedure, so it is important to check what the receiving authority requests before arranging the translation.

How does certified translation work in Japan?

Japan takes a different approach to official translations. Unlike France, official translation requirements in Japan are not based on an equivalent nationwide register of court-appointed sworn translators.

Instead, Japanese requirements depend largely on the organisation receiving the document. In some cases, a translation may be accompanied by a signed declaration confirming its accuracy. However, this does not give the translator the same formal status as a French traducteur assermenté.

In fact, Japan’s Ministry of Foreign Affairs (MOFA) advises applicants to check directly with the receiving organisation. Depending on the circumstances, an organisation may accept a translation prepared by the applicant, require a notarised declaration or stipulate who is permitted to translate it.

This means that a “certified translation” should not be understood as a single, universally recognised category in Japan. Depending on where the document is going and how it will be used, additional forms of authentication may be required.

What about notarisation and apostilles?

Two terms that commonly appear when preparing Japanese documents for official use are notarisation and apostille. However, neither describes the quality or accuracy of the translation itself.

• Notarisation: A notary is a legally authorised official who can authenticate certain documents, signatures and declarations. In the context of translation in Japan, a translator may sign a declaration stating that they have faithfully translated the attached document. A notary can then authenticate that declaration, essentially confirming that it was signed or acknowledged by the person named — not that the translation itself is accurate.
• Apostille: An apostille is a form of official authentication used when public documents are sent between countries that participate in the Hague Apostille Convention. In Japan, apostilles are issued by the Ministry of Foreign Affairs (MOFA) and can authenticate eligible Japanese public documents for use abroad. Rather than verifying the contents of the document, an apostille confirms the authenticity of the relevant official signature, seal or stamp.

For this reason, certification, notarisation and apostilles should not be treated as different levels of the same process. Which, if any, are required depends on the document, its destination and the requirements of the organisation receiving it.

France and Japan: the key difference

The clearest difference between the French and Japanese approaches is not necessarily the standard of translation but the source of official recognition.

In France, the system centres on the translator's status. Japan, on the other hand, has no directly equivalent nationwide system for recognising translators. Instead, whether a translation is accepted depends more heavily on the requirements of the organisation receiving it.

This distinction is particularly important when documents move between the two countries. A translation that satisfies the requirements of a Japanese organisation will not necessarily meet those of a French authority, and vice versa.

Rather than looking for a direct Japanese or French equivalent, the starting point should therefore be the requirements of the organisation that will ultimately receive the document.

What translation do you need?

If you are submitting a Japanese document to a French authority, do not assume that a translation certified in Japan will automatically meet French requirements. Similarly, a French sworn translation may not necessarily be what a Japanese organisation requires.

Before arranging a translation, check with the organisation receiving the document and confirm:

• What type of translation is accepted: Does it require a sworn or certified translation, or will another form be accepted?
• Who can provide the translation: Does the organisation specify an approved translator, translation company or other provider?
• Whether additional authentication is required: Does the original document or accompanying paperwork need to be notarised, apostilled or otherwise authenticated?

Checking these requirements first can prevent unnecessary costs, delays and, most importantly, the risk of your documents being rejected.

Navigating different translation requirements

France and Japan take different approaches to official translation, but neither system is inherently more rigorous than the other. What matters is ensuring that your translation meets the requirements of the organisation that needs to accept it.

When documents cross borders, linguistic accuracy is only part of the process. Understanding requirements around certification, notarisation and authentication can help avoid delays, additional costs and rejected paperwork.

If you need documents translated between French and Japanese for official use, Word Connection can help you navigate the relevant requirements and identify the appropriate translation process for your documents.