Khmer interpreting for a refugee generation now in its sixties and seventies, in clinics, courtrooms and USCIS offices, and certified translation of Cambodian civil records.
Prism Linguistics provides Cambodian (Khmer) interpreters for medical appointments, court hearings, immigration court and USCIS interviews anywhere in the United States, in person, by phone or by video, together with USCIS-compliant certified translation of Cambodian birth certificates, family books and the affidavits that replace records lost in the Khmer Rouge years.
Last reviewed September 2, 2026 by Sarah J, Prism Linguistics
Cambodian is the word on the booking; Khmer is the language the interpreter speaks. The people who need one came to the United States through the Thai border camps in the early 1980s, settled in Long Beach, Lowell, Stockton and Philadelphia, and are now the age at which cardiology, oncology and memory clinics fill the calendar. Their grandchildren speak English, and should not be asked to carry a diagnosis in Khmer. Our office is in New York and our Cambodian interpreters are spread across the country; for in-person work we assign one based near you, and phone or video is usually available the same day.
Around 360,000 people identified as Cambodian on 2023 Census estimates, with roughly 193,000 speaking Khmer at home in 2020. Long Beach holds the largest community outside Cambodia itself and Lowell, Massachusetts the second largest in the country; the Central Valley, Philadelphia, Providence, Tacoma and the Twin Cities carry the rest. That is where our Cambodian interpreting requests come from.
Khmer has registers, and a court hears the difference. The words a speaker uses to a monk, to an official and to family are not the same words, and an interpreter who raises a witness's plain speech into polite officialese has changed the testimony. Trauma history is the other constant. Older Cambodians carry the Khmer Rouge years into every mental health intake, and an interpreter needs the composure to render an account of a labor camp without flinching or editing.
Most of our Cambodian work is medical, and most of it is for patients over sixty: diabetes and heart disease, cancer treatment, PTSD and depression clinics where the history goes back to Pol Pot. Any provider that takes federal funding must supply a Khmer interpreter at no cost, and families should ask before paying privately. A hospital's phone line will often produce a Khmer speaker; what it will not always produce is someone who can sit with an elder through a mental health assessment. We send an interpreter in person for those, for consent conversations and for discharge planning, and cover routine follow-ups by video.
California is the one state that certifies Khmer court interpreters through the Judicial Council's exam, so a judge in Long Beach or Stockton will expect a certified Cambodian interpreter and we supply one where the roster allows. Elsewhere, no Khmer exam exists and courts use registered or otherwise qualified interpreters; we confirm the standard for the specific court before the date. A distinct line of Cambodian court work is removal defense: long-term residents with old convictions have faced deportation to Cambodia under the 2002 repatriation agreement, and those immigration court hearings need an interpreter fluent in the legal vocabulary and the register the respondent actually speaks. We work for courts and attorneys as a private agency, not through any court-appointed vendor list.
Cambodian naturalization interviews are unusual in how often they involve a medical disability exception. An applicant whose physician has certified on Form N-648 that PTSD or another condition prevents them learning English takes the interview in Khmer, and the interpreter has to render the officer's questions to an elder who may fear uniforms and forms for reasons that predate this country. That takes patience and a plain register. We also cover marriage-based interviews for spouses recently arrived from Cambodia and affirmative asylum interviews. In every setting the interpreter renders what is said and does not prompt, explain or reassure.
Start with what the family actually holds. A birth certificate from Cambodia is issued in Khmer only by the commune (khum) or sangkat office, where the commune chief serves as civil registrar; alongside it sits the family book, the household register Cambodians use as everyday proof of identity, and a marriage certificate from the same office. The forms have changed over the years, most recently under the 2023 civil registration law, so an older and a newer record from one family will not look alike. We translate the commune, district and province as printed, keep the register entry number, and render every stamp.
The harder file is the one with no certificate at all. The Khmer Rouge destroyed civil records wholesale, and a person born in 1975 in Battambang or in a Thai camp in 1982 may have nothing but a later family book entry and the memory of relatives. USCIS accepts affidavits and secondary evidence when a primary record is unobtainable, so we translate sworn statements, temple records and camp documents and certify each one. Khmer has no single romanization, so Sok, Sokh and Sock can be one person across three papers; we follow the passport or the existing US record and note the Khmer spelling. Every translation carries a signed Certificate of Translation Accuracy; the full document service is at certified translation.
Tell us the date, the city and the setting, or send a clear scan of the document. We reply with a fixed price and, for interpreting, a named linguist. Call +1 (833) 282 8883, email info@prismlinguistics.com, or use the quote form and you will hear back within 60 minutes during business hours.
Our only office is in New York, and our Cambodian interpreters work nationwide. For in-person work we assign someone based in or near the city. These are the areas where Cambodian work is concentrated; the full list of 288 cities is below it.
Prism Linguistics is rated 4.6 out of 5 across 67 client reviews for its interpreting and translation work in the United States. That is the company-wide figure; we do not publish a separate rating per language because there is no honest way to measure one. If a Cambodian assignment ever falls short, tell us and we put it right.