Certified Translation Services

Ensure Certified Translation Accuracy with Translation Quality Assurance

LanguageLine delivers rigorous quality assurance with ISO-certified processes, dual review, and certified translations. From AI evaluation to legal filings, we ensure multilingual content is accurate, consistent, and trusted worldwide.

Expert linguists vetted for sector-specific accuracy
Dual review with editing and proofreading by two professionals
Client-specific glossaries and style guides for consistency
Automated QA checks to flag issues before delivery
ISO + ASTM compliance for global standards
Certified translations with official certificates of accuracy

In high-stakes environments, this level of rigor is essential. In a recent high-profile court case, LanguageLine supported a global law firm by delivering tens of thousands of translated words under significant time constraints — maintaining certified accuracy, confidentiality, and strict quality controls throughout the process. See how certified translation and structured QA workflows ensured documents were ready for submission without compromise. Read the legal translation case study.

99.9%

Translation accuracy across projects
ISO

ISO 9001:2015, ISO 17100, ISO 27001, ISO 18587 and ASTM F2575 aligned
580+

Language combinations supported across all industries

Where certified translation makes the difference

Legal

Contracts, affidavits, immigration forms, court documents, IP filings

Finance

Mortgage paperwork, account statements, loan applications and audit reports

Healthcare

Patient records, eligibility notices, discharge instructions, consent forms

Government

Civil records, compliance reports, ID documentation, licences and certificates

Corporate

HR policies, regulatory submissions, business registrations, NDAs

Education

Diplomas, academic records, certifications, enrolment forms

man reading certified translation document

Why Certified Translations Matter

Certified translations are more than accurate language versions — they include a signed Certificate of Accuracy from a qualified linguist, verifying that the translated document is complete and defensible. They’re required by courts, immigration authorities, regulators, and institutions where trust, compliance, and legal admissibility matter.

Understand what makes certified translation different.
See why organisations rely on certification for official documents.
Learn how expert review and structured workflows deliver trustworthy results.

Explore our blog: From Machine to Meticulous: The Indispensable Role of Certified Translations - Read the full article

Certified Translations, Simplified

We understand the urgency and importance of certified documents, especially when AI is so prevalent in content creation. That’s why we’ve created a streamlined, fully managed service that pairs expert linguists with an automated process that meets official requirements in every region.

What sets our certified service apart:

Official Certificates of Accuracy provided for all certified translations
Pre-approved linguists who meet regulatory and legal standards
End-to-end traceability and tamper-proof deliverables
Automated order and routing system for faster turnaround and less admin burden
Human review + structured templates to meet legal and government acceptance criteria

A man waves to the camera while he's in a video meeting

A linguist reviews the source documentation for a project in front of her computer.

Certified Accuracy. Built for Trust. Delivered at Scale.

LanguageLine helps organizations confidently translate their most sensitive and vital content—everything from legal filings to healthcare records, immigration forms, financial documents, and more.

Certified translations require more than fluency. They demand precision, compliance, and documented accountability. That’s why every certified project is backed by our ISO 9001:2015, certified Quality Management System (QMS), our ASTM compliance, and a quality-first approach that ensures your documents are accurate, accepted, and protected.

With industry-specific linguists, structured review cycles, and automation that simplifies workflows, we make it easy to scale certified translation without sacrificing integrity.

Certified Translation FAQs

What is certified translation?

Certified translation is a professional translation accompanied by a signed Certificate of Accuracy from a qualified linguist, affirming that the translation is complete and accurate. It’s required for official, legal, and regulatory use cases.

When do I need certified translation services?

Certified translations are typically required for legal proceedings, immigration filings, regulatory submissions, court documents, academic transcripts, and other official uses where accuracy must be formally attested and accepted by third-party institutions.

How does LanguageLine ensure accuracy in certified translations?

LanguageLine combines rigorous quality controls, expert linguists with subject-matter expertise, structured review processes, and a Certificate of Accuracy to ensure translations meet compliance and acceptance standards for official use.

What languages does certified translation support?

LanguageLine supports certified translation across a wide range of languages, enabling accurate, defensible translations for multilingual documents used in global, legal, academic, and regulatory contexts.

How long does a certified translation take?

Turnaround depends on document length, language pair, and complexity, but LanguageLine offers flexible delivery timelines and can expedite when needed to meet deadlines without compromising quality.

Accuracy That Holds Up Where It Matters

When documents must be accepted by courts, government agencies, regulators, or institutions, accuracy isn’t optional — it must be defensible.

LanguageLine delivers certified translations backed by professional linguists and a signed Certificate of Accuracy, ensuring your documents meet official requirements quickly, securely, and with confidence.

Whether you’re filing court documents, submitting regulatory paperwork, or preparing multilingual patient records, we’re ready to help.