Day Translations Review: Is It Right for USCIS Certified Translation?

Day Translations is one of the larger general-purpose translation agencies operating in the United States, handling document translation across dozens of industries and languages. If you’re looking for certified translation for a USCIS filing, immigration court, or NVC packet, the question isn’t whether Day Translations is a legitimate company — it is — but whether a large generalist agency is the right fit for high-stakes USCIS document work.

This review compares Day Translations and Corpus Localization on the dimensions that matter for immigration-related certified translation: USCIS compliance, pricing structure, turnaround, attorney workflow, and local support for NY/NJ clients.

Day Translations vs. Corpus Localization: Key Differences

USCIS specialization

Day Translations handles certified translations across many domains — legal, technical, medical, commercial, and government. USCIS immigration document translation is one part of a broad service catalog. Corpus Localization is built specifically for USCIS and immigration-related certified translation: birth certificates, marriage certificates, divorce decrees, passports, police clearances, diplomas, and the document types that appear in I-130, I-485, N-400, and NVC filings. Corpus translators know the specific CFR requirements, civil registry formats by country, and formatting requirements for USCIS submission.

Certification and credentials

Corpus Localization is ATA-certified (American Translators Association) and provides a signed Certificate of Translation Accuracy that meets the requirements of 8 CFR 103.2(b)(3) with every certified translation. Day Translations offers certified translations and is a member of multiple industry organizations. For USCIS purposes, the critical requirement is a signed certification from a competent translator — both companies provide this. The difference is depth of USCIS-specific process knowledge on the Corpus side.

Pricing transparency

Corpus Localization publishes a flat rate: $19.99 per page (physical page side) or 8¢ per word, whichever is lower. No rush fees for standard documents. A single birth certificate is $19.99; a two-sided marriage certificate is $39.98. Day Translations uses a per-word pricing model that varies by language pair, document type, and requested turnaround. Per-word pricing can produce significantly higher costs for documents with dense text.

Turnaround

Corpus Localization delivers standard certified documents digitally within 24 hours after order confirmation, backed by a delivery guarantee (document is free if the deadline is missed). Day Translations offers various turnaround options with premium pricing for faster delivery. For standard immigration documents with clear scans, Corpus’s 24-hour flat rate without rush fees is typically faster and cheaper than expedited per-word pricing from a generalist agency.

Immigration attorney support

Corpus operates firm accounts for immigration attorneys and law firms, with volume pricing, priority turnaround, and full RFE support. If a USCIS Request for Evidence is issued citing a translation, Corpus works directly with the firm to resolve it at no additional cost. Day Translations handles enterprise clients across industries; USCIS RFE support is not a specialized offering in the same way. For NY/NJ immigration attorneys, Corpus is specifically built for the Hudson County, Queens, Brooklyn, and Manhattan immigration court dockets. See our certified translation for immigration attorneys page.

Local NY/NJ presence

Corpus Localization serves the NY/NJ metro area with specific knowledge of the courts and communities: Manhattan (26 Federal Plaza, Varick Street Immigration Court), Brooklyn, Queens (120-55 Queens Blvd court), The Bronx, Jersey City, Newark, Elizabeth (Elizabeth Immigration Court), and Paterson. Day Translations is a national agency without NY/NJ-specific immigration court orientation.

When Day Translations might be the right choice

Day Translations is a solid choice for enterprise translation needs outside the immigration context: large-volume technical or legal document translation, multilingual website content, marketing localization, and projects requiring project management at scale. If your primary need is high-volume corporate translation beyond USCIS and immigration filings, a large generalist agency may offer the project infrastructure you need.

When Corpus Localization is the right choice

Choose Corpus Localization when you need:

• Certified translation for a USCIS filing, NVC packet, or immigration court submission
• A flat-rate price with no surprises ($19.99/page or 8¢/word, whichever is lower)
• 24-hour delivery backed by a guarantee
• A translator who knows the difference between a Cuban acta de nacimiento and a Dominican acta de nacimiento, or between a Soviet-era свидетельство and a post-Soviet Ukrainian certificate
• RFE support if USCIS questions the translation
• An attorney-ready firm account with volume pricing and priority turnaround

Frequently Asked Questions — Day Translations vs. Corpus Localization

Is Day Translations certified for USCIS?

Day Translations provides certified translations that include a signed certificate of accuracy, which is the standard requirement under 8 CFR 103.2(b)(3) for USCIS filings. Both Day Translations and Corpus Localization can provide certifications that meet USCIS’s stated standard. The difference is in USCIS-specific process expertise and document format knowledge.

How does Day Translations pricing compare to Corpus Localization?

Day Translations typically uses per-word pricing that varies by language pair and turnaround. Corpus Localization charges $19.99 per page (physical page side) or 8¢ per word — whichever is lower — with no rush fees for standard documents. For typical immigration documents like birth certificates and marriage certificates, Corpus’s per-page pricing is often lower than per-word alternatives.

Does Corpus Localization have an acceptance guarantee for USCIS?

Yes. Corpus Localization’s Corpus Guarantee includes a USCIS acceptance guarantee: if USCIS rejects a translation for a reason related to translation quality or certification, Corpus will rework or replace it at no cost. This guarantee is backed by ATA certification and USCIS-specific expertise.

What other certified translation services should I compare?

For USCIS certified translation, the main services you’ll encounter include Corpus Localization, RushTranslate, ImmiTranslate, Day Translations, and various local agencies. See our guide to the best certified translation services for USCIS, our RushTranslate review, and our ImmiTranslate alternative page for detailed comparisons.

Is Day Translations ATA-certified?

Day Translations employs translators who may hold ATA certification, and the company is a member of industry associations. Corpus Localization is ATA-certified at the organizational level. For USCIS purposes, what matters is the signed certification of competency and accuracy on the delivered translation, not the certification of the agency itself.