Submitting a medium-of-instruction letter to the United States — how must it be translated and certified?

The case under review is “Submitting a medium-of-instruction letter to the United States”, so it flags what usually causes documents like this to be rejected before summarising the general practice. Before starting, ask in advance which category of certified translator the destination accepts, then plan the timeline so certification finishes before the real filing deadline, then keep a digital copy of every page, including seals and signatures. The biggest risk in cases like this is doing the certification steps out of order, which forces a restart. The deciding factor is the receiving body's requirement, not only the format of the Thai-side document. The terms that frame this page are Submitting · medium-of-instruction · letter · United. The specifics here are document type: Medium; destination: Us, and those decide which translation and certification level applies. Degree titles, field names and grading scales follow the issuing institution's official wording rather than a fresh interpretation. Education files normally pair a transcript with a qualification certificate, and institutions check both together. Note who signed each certification and on what date for later reference. Attach a document index to the bundle so nothing is lost during review. Plan the schedule with room for at least one review cycle at the receiving office. When several certification layers are required, start with the slowest one. If any requirement is still unclear, send a sample image to the receiving body before producing the full set. A Thai educational document intended for overseas use is normally translated into the language the destination requires, then legalised by the Legalisation Division of the Department of Consular Affairs, Ministry of Foreign Affairs, and where the destination requires it, further legalised by that country's embassy or consulate. Many credential-evaluation bodies require the institution itself to send documents in a sealed envelope or through the institution's own electronic channel; an applicant or translator copy is not accepted as a substitute, so the body's own handbook must be read before translation is ordered. Thailand deposited its instrument of accession to the Hague Apostille Convention on 30 June 2026, but the Convention is not yet in force for Thailand, so consular legalisation through the Ministry of Foreign Affairs and the relevant embassy remains the working route; always confirm the current requirement with the receiving authority before filing. Cost and lead time depend on page count, language pair and the certification steps the receiving authority requires, so every file is quoted before work starts. Send a scan of the documents together with the receiving institution's own instructions via LINE @NAATI, call +66 80-557-8887 or email ilc@thainotary.co.th.

ปรึกษาฟรี — LINE @NAATI · โทร 080-5578887 · อีเมล ilc@thainotary.co.th