The One Sentence That Governs Everything
People filing with US Citizenship and Immigration Services often arrive expecting a formal accreditation scheme: an approved provider list, a government stamp, a registry to check against. None of that exists. The entire requirement sits in a single sentence of the Code of Federal Regulations, and once you have read it carefully, most of the questions answer themselves.
“Any document containing foreign language submitted to USCIS shall be accompanied by a full English language translation which the translator has certified as complete and accurate, and by the translator’s certification that he or she is competent to translate from the foreign language into English.”
Read it again and notice what it asks for. A full English rendering. A certification that it is complete and accurate. A certification that the translator is competent. That is the whole obligation. There is no mention of notaries, no mention of professional bodies, and no mention of who the translator may or may not be.
The Four Elements of a Compliant Translation
The single sentence unpacks into three requirements plus one matter of practice. If any one of them is missing, an officer reviewing the file has grounds to ask for corrected work, which usually arrives as a Request for Evidence and costs weeks.
1. A complete translation
Everything visible on the source must appear in the English version. That includes the printed text, but also the parts people routinely skip: official stamps, embossed or inked seals, marginal annotations, registrar signatures, and handwritten entries. Where something cannot be rendered as text, it is described in brackets, so the reader knows a seal was present and what it said.
Summaries do not satisfy this. Neither does translating only the fields that seem relevant to the petition. A Thai house registration with eight residents listed does not become compliant by rendering only the applicant’s line.
2. A statement that the translation is complete and accurate
The translator states, in writing, that the English version is both complete and accurate. Both words matter and both appear in the regulation. A statement claiming accuracy while saying nothing about completeness is a partial certification.
3. A statement of competence
The translator separately certifies competence to translate from the source language into English. This is the element most often left out of self-prepared translations, because it feels redundant next to the accuracy statement. The regulation treats it as distinct, and so do officers.
4. Identification and signature
The certification carries the translator’s name, contact details, signature, and the date. Note that this fourth element is not in the regulation — the quoted sentence says nothing about signatures, dates or names. It comes from the certification format USCIS itself publishes and from individual form instructions, and an unsigned or unattributed statement is what officers question in practice. Treat it as required, but know where the requirement comes from.
Our house practice is to sign certifications by hand on company letterhead. The federal rule requires a signed certification but does not mandate ink over a digital signature. If a specific form’s instructions say otherwise, the form instructions govern.
What the Rule Does Not Require
Three widespread beliefs about certified translation for immigration filings have no basis in the regulation. Each one costs applicants money or time.
Notarization is not required
A notary verifies the identity of the person signing a document. A notary does not verify accuracy and, in most cases, cannot read the source language. Adding one adds a fee and a signature that the regulation never asked for.
There is a real exception worth knowing. Other authorities involved in the same case may have their own rules. A Thai government office, a foreign embassy, or a court may want notarization even though the immigration filing does not. The correct move is to tell whoever prepares the translation where every copy is going, so the right version is produced once.
Membership of a professional body is not required
Certification by the American Translators Association, or any equivalent organization, is not a condition of the regulation. Such credentials are a reasonable proxy for competence and many good translators hold them, but the rule asks the translator to attest to competence rather than to prove membership.
A special government stamp does not exist
There is no US government seal that makes such work official. When a service advertises one, what they are actually selling is their own company seal, which is a presentation convention rather than a legal requirement.
Can You Translate Your Own Documents?
The regulation does not prohibit it. If you are genuinely competent in both languages and you attach a proper certification, self-prepared work satisfies the text of the rule.
In practice, applicants often choose not to. The reason is not legal but practical: an officer reviewing an English version signed by the beneficiary of the petition is being asked to accept an interested party’s word on the contents of the evidence. That is a reasonable thing to be cautious about, and it introduces a discretionary question that independent work simply does not raise. Applicants translating a family member’s documents face a milder version of the same issue.
Reading a Certification Statement
A compliant certification is short. If you want to check one before filing, look for each of these:
- The translator’s full name and contact information
- An explicit statement of competence in the source and target languages
- An explicit statement that the English version is complete and accurate
- A signature
- The date it was prepared
If a statement in front of you is missing the competence line, or is dated but unsigned, it is worth fixing before the file goes in rather than after.
Where Requirements Differ From the Federal Rule
The regulation sets a floor, not a ceiling. Individual form instructions occasionally add requirements, and consular posts abroad publish their own document checklists that may go further. A document heading to a US embassy interview and a document going into a domestic petition can face different expectations even when the underlying rule is identical.
Because of that, the useful habit is to check two sources rather than one: the regulation, and the current instructions for the specific form being filed.
The controlling text is at 8 CFR 103.2(b)(3). Also read the current USCIS filing guidance and the instructions for your specific form, which can add requirements beyond the general rule. Procedures change; this guide was last checked 19 August 2026.
How We Prepare Translations
Bangkok Translation and Interpretation Service has prepared Thai–English translations for US immigration filings since 2008. Each translation is produced by a Thai–English translator, checked by a second team member for names, dates and seal descriptions, and delivered with a signed certification statement on company letterhead. If an officer raises a question about our translation or our certification, we review the notice and correct our work at no charge.