What Is a Certified Translation? Certified vs. Notarized vs. Sworn

If you have been asked to provide a "certified translation" of a birth certificate, diploma, or contract, you have probably also seen the terms notarized and sworn used as if they mean the same thing. They do not. Ordering the wrong kind can delay an immigration filing, a court case, or a university application by weeks.

This article explains what each term means in the United States, what USCIS and other agencies expect, and how to make sure the translation you receive will be accepted.

Certified translation

A certified translation is a translation accompanied by a signed statement from the translator or the translation company. The statement, often called a certificate of accuracy, attests that the translation is complete and accurate to the best of the signer's knowledge and that the signer is competent to translate between the two languages.

Certification is about accountability. It puts a named person or company on record as responsible for the accuracy of the document. In the United States, there is no government license required to certify a translation; what matters is that the certification is complete and that the translator is genuinely qualified.

A typical certificate of accuracy includes:

• A statement that the translation is accurate and complete.
• The source and target languages.
• A description of the document translated, such as "Birth certificate issued in Guadalajara, Jalisco."
• The translator's or company representative's name, signature, and contact details.
• The date of certification.

Notarized translation

A notarized translation is a certified translation whose certificate has been signed in front of a notary public. The notary verifies the identity of the person signing the certificate and witnesses the signature. The notary does not read the translation, does not speak the language, and makes no judgment about accuracy.

Notarization adds a layer of formality that some institutions request, such as certain universities, foreign consulates, and courts. It does not make the translation more accurate. If an institution asks for a notarized translation, ask whether they also require an apostille, which is a separate authentication for documents that will be used abroad.

Sworn translation

Sworn translation is a concept from civil-law countries such as Spain, France, Germany, Italy, and Brazil. In those systems, a sworn translator (traductor jurado, traducteur assermenté, and so on) is appointed by a court or government ministry and has the authority to produce translations that carry official legal standing, usually with a stamp and registration number.

The United States has no equivalent system. If a foreign authority requests a sworn translation, a certified translation from a U.S. company will often need to be supplemented with notarization, an apostille, or a translation produced by a sworn translator in the destination country. Let your translation provider know where the document will be used so they can advise on the right path.

What USCIS requires

U.S. Citizenship and Immigration Services has a clear and relatively simple rule. Any document written in a foreign language that is submitted with an application or petition must be accompanied by a full English translation. The translator must certify that the translation is complete and accurate and that they are competent to translate from the foreign language into English.

A few practical points follow from that rule:

• USCIS does not require notarization. A certified translation is sufficient.
• The translation must be complete. Stamps, seals, handwritten notes, and margin text must be translated or described, not skipped.
• Summaries and partial translations are not accepted for supporting documents.
• Applicants should not translate their own documents. Using a third-party professional avoids questions about impartiality.
• Submit a copy of the original document together with the translation and the certificate.

The most common reason a translated document is questioned is not a mistranslated word. It is a missing seal, an untranslated stamp, or a certificate with no signature.

Documents that usually need certification

• Birth, marriage, divorce, and death certificates
• Passports, national ID cards, and driver's licenses
• Academic transcripts, diplomas, and degree certificates
• Police clearance and criminal record certificates
• Medical records submitted for immigration or legal purposes
• Contracts, court judgments, and affidavits
• Bank statements and financial records for visa applications

How to order the right translation

1. Ask the receiving institution exactly what they require: certified, notarized, apostilled, or sworn.
2. Send a clear, complete scan of every page, including the back if it carries stamps or text.
3. Tell the provider how names should be spelled, matching the spelling in the passport or other identity document.
4. Confirm turnaround. Short personal documents are usually quick; long legal or medical files take longer.
5. Ask for a digital copy for electronic filing and a signed hard copy if the institution requires one.

A note on translator credentials

You may see translators described as "ATA-certified." That refers to an individual credential awarded by the American Translators Association after a rigorous examination in a specific language pair. It is a mark of professional competence, but it is separate from the certificate of accuracy attached to a document. A certified translation can be produced by a qualified translator with or without ATA certification, and an ATA-certified translator still has to attach a certificate for the translation to be "certified."

Focus Interpreting produces certified translations in more than 120 languages for USCIS filings, courts, schools, and employers, with notarization available on request. Our translators follow the ATA Code of Ethics, and every document is reviewed for completeness before the certificate is signed. Request a quote to get started.