Mandarin Chinese is the world's most spoken native language — 1.12 billion native speakers. Is your content reaching them?
Free quote in 10 minSimplified or Traditional, Mandarin or Cantonese — the Chinese your audience reads is not interchangeable. We assign native linguists by target region and certify every project to the standard USCIS, courts, hospitals, and the FDA accept.
From USCIS-certified immigration documents to enterprise software localization across the Great Firewall — Day Translations handles every Mandarin and Cantonese project with native expertise in both Simplified and Traditional Chinese.
USCIS-accepted certified translations for immigration documents, birth certificates, marriage certificates, diplomas, and all official records. Includes signed certification statement in both Simplified and Traditional Chinese.
Contracts, court filings, depositions, patents, regulatory submissions, and legal correspondence — translated by subject-matter experts with legal training in both US common law and Chinese civil law traditions.
Clinical documents, patient consent forms, medical records, pharmaceutical labels, IFUs, and FDA submissions. HIPAA-compliant. Translated by medical professionals with clinical expertise in Chinese medical terminology.
Consecutive, simultaneous, over-the-phone (OPI), and video remote interpretation (VRI) in Mandarin and Cantonese. Court-certified interpreters for legal proceedings. Available 24/7 for medical emergencies.
Website, software, app, and marketing localization for Simplified Chinese (mainland China) and Traditional Chinese (Taiwan, Hong Kong). Includes cultural adaptation, date/number formatting, and UI/UX review.
Audio and video transcription, subtitling, dubbing, and voice-over in Mandarin and Cantonese. Broadcast-quality output for streaming platforms, corporate video, and e-learning in both script variants.
With over 3.5 million Chinese speakers in the United States — and a significant portion classified as Limited English Proficient (LEP) — the demand for qualified Chinese medical interpreters and translators is both a legal obligation and a patient safety imperative.
Section 1557 of the Affordable Care Act (42 U.S.C. § 18116) requires all healthcare providers receiving federal funding to provide qualified interpreters and translated vital documents free of charge to LEP patients. Using family members or unqualified interpreters exposes providers to significant legal liability and compromises patient safety.
Across medical and legal — our specialists have already touched every type you’re likely to send.
Legal translation between English and Chinese requires deep knowledge of both the US common law system and the Chinese civil law tradition. A contract translated without understanding these structural differences can expose your client to significant legal risk. China's legal system, based on the civil law tradition with socialist characteristics, differs fundamentally from US common law in contract interpretation, dispute resolution, and liability standards.
Requires language access for LEP individuals in all federally funded programs. Chinese is among the top five most requested languages.
28 U.S.C. § 1827 requires federal courts to provide certified interpreters. Mandarin and Cantonese are among the most frequently requested languages in federal courts.
All Chinese-language documents submitted to USCIS must include a certified translation with a signed statement of accuracy. Day Translations' certifications are accepted by all USCIS field offices nationwide.
Requires federal agencies to provide meaningful language access. Chinese is among the most requested languages across federal agencies, particularly in immigration, healthcare, and social services.
Every Chinese-speaking market, served by linguists who grew up speaking the language — not translators who learned it in a classroom.
China's GDP of $18.5 trillion makes it the world's second-largest economy — and its e-commerce market, at over $1.5 trillion annually, is the largest in the world. Yet Chinese consumers are highly resistant to content that is not localized for their market. A 2020 CSA Research study found that 75% of consumers prefer to buy products in their native language, and this preference is even stronger in China where cultural alignment is a key purchasing factor.
Chinese localization is not simply translation — it requires adaptation for the Great Firewall (no Google, Facebook, or YouTube), local platforms (WeChat, Weibo, Baidu, Tmall), Chinese date and number formats, and cultural values around collectivism, face (面子, miànzi), and relationship-building (关系, guānxi). Day Translations' localization team includes in-country reviewers in both mainland China and Taiwan.
USCIS filings, court interpretation, contract translation, IP filings
Patient communication, clinical trials, medical records, pharmaceutical
Public communications, diplomatic documents, federal agency materials
Investment documents, regulatory filings, KYC/AML, M&A due diligence
Software localization, user manuals, patent filings, technical documentation
Technical documentation, safety materials, supply chain communications
Academic transcripts, student communications, e-learning localization
Product listings, marketing materials, customer service, Tmall/JD.com
We assess your content type, target region, script requirement, and deadline to assign the right linguist team.
We assign a native Chinese linguist with subject-matter expertise in your industry and target region.
Translation is performed by a human expert — never machine translation without post-editing. Terminology consistency is enforced via glossaries.
A second qualified linguist reviews the translation under ISO 17100 standards. All changes are tracked and documented.
Final delivery with certificate of accuracy (for certified translations), project glossary, and quality assurance report.
“Day Translations handled our entire USCIS immigration package for our Chinese employees — birth certificates, marriage certificates, academic transcripts. Every document was accepted on the first submission. Their Simplified Chinese team is exceptional.”
“We needed Mandarin interpretation for a complex commercial litigation involving a Chinese counterparty. Day Translations provided a court-certified interpreter who understood both the legal terminology and the cultural nuances. Outstanding.”
“Our software localization into Simplified Chinese for the mainland China market was handled flawlessly. Day Translations' team understood the Great Firewall implications, local platform requirements, and cultural adaptation needs. Highly recommend.”
Real answers — not boilerplate. If you don’t see your question, our team responds in under 60 minutes, 24/7.
Ask a specialistSimplified Chinese uses characters that were reformed by the People's Republic of China in the 1950s–60s to improve literacy. It is used in mainland China, Singapore, and Malaysia. Traditional Chinese retains the full, unmodified characters and is used in Taiwan, Hong Kong, Macau, and most overseas Chinese communities. Using the wrong script for your audience signals cultural insensitivity and can undermine trust. Day Translations assigns linguists by target region to ensure the correct script and register.
Yes. Section 1557 of the Affordable Care Act (42 U.S.C. § 18116) requires all healthcare providers receiving federal funding to provide qualified interpreters and translated materials free of charge to patients with limited English proficiency (LEP). Mandarin Chinese is consistently among the top five languages requested in US hospitals. Title VI of the Civil Rights Act (42 U.S.C. § 2000d) also prohibits language-based discrimination in federally funded programs.
USCIS requires certified translation for all foreign-language documents submitted with immigration applications. This includes birth certificates, marriage certificates, divorce decrees, adoption records, police clearances, academic transcripts, financial documents, and any other supporting documents. Day Translations provides USCIS-accepted certified translations with a signed statement of accuracy, completed within 24–48 hours.
Chinese translation typically results in text contraction rather than expansion — Chinese text is generally 15–25% shorter than equivalent English text because Chinese characters are information-dense. However, when translating from Chinese to English, significant text expansion occurs. This has major implications for UI/UX design, packaging, and document layout. Day Translations' localization team accounts for these differences in all software and website localization projects.
Day Translations provides translation and interpretation services for Mandarin (Putonghua), Cantonese, Shanghainese (Wu), Hokkien/Taiwanese, Hakka, and other Chinese dialects. For written translation, the choice between Simplified and Traditional Chinese is the primary consideration. For interpretation, we match interpreters by dialect and regional origin to ensure natural, accurate communication.
Standard certified Mandarin Chinese translation is delivered within 24–48 hours for documents under 10 pages. Rush same-day delivery is available for urgent immigration or legal needs. Complex technical or legal documents may require additional review time. Day Translations provides 24/7 project management support and real-time order tracking.
The highest-demand industries for Mandarin Chinese translation include legal (immigration, contracts, litigation), healthcare (patient communication, medical records, clinical trials), finance and banking (investment documents, regulatory filings, KYC/AML), technology (software localization, user manuals, patent filings), manufacturing (technical documentation, safety materials), and government (public communications, diplomatic documents).
Yes. Day Translations provides certified court interpreters for Mandarin Chinese and Cantonese for depositions, hearings, trials, and arbitration proceedings. The Court Interpreters Act (28 U.S.C. § 1827) requires federal courts to provide certified interpreters for defendants and witnesses with limited English proficiency. Our interpreters are trained in legal terminology and court protocols.
Get a free quote in under 60 minutes. ISO 17100 certified. Available 24/7.
