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How do I include recommendation letters in the I-129 petition?

In the O-1 I-129 petition, recommendation letters serve as supplemental evidence: properly identified, translated when necessary, and organized with an index. Learn how to assemble them to facilitate the review.

Written by

Victoria Harper

Editor-in-Chief

Updated on July 17, 2026
1 min read
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In the I-129 petition for the O-1 visa, recommendation letters are submitted as part of the evidence demonstrating the applicant’s extraordinary ability. They are not filed loosely: they are presented alongside the other supporting documents as supplemental evidence of recognition of your work.

To make each letter count during adjudication, pay close attention to identification. Ideally, each letter should include the signatory’s name, title, institution, and contact information, and concretely describe how your contributions stand out in the field. Letters written in a language other than English must be accompanied by a certified English translation and the original document.

Organization also matters. Building an index that lists the documents and explains what each one represents makes it easier for immigration officers to review the case and demonstrates careful preparation.

  • Treat the letters as supplemental evidence, integrated with the full package.
  • Identify each signatory and their relationship to you.
  • Translate any document not in English and include the original.

Since submission guidelines may change, it is worth checking the official USCIS instructions for the correct format and, if needed, seeking specialized assistance in assembling the petition.

Learn more about O-1

Requirement
Extraordinary ability
Initial validity
3 years
Extension
1 year at a time (unlimited)
Processing
2-4 months
All about O-1

About the author

Victoria Harper

Editor-in-Chief

Meet the author

As a journalist and lead editor at Visto n’ Visa, Victoria helps ensure that immigration topics are covered in a clear, trustworthy, and easy-to-understand way. Her focus is on delivering useful, human, and relevant content for people exploring new paths abroad.

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How do I include recommendation letters in the I-129 petition?

In the O-1 I-129 petition, recommendation letters serve as supplemental evidence: properly identified, translated when necessary, and organized with an index. Learn how to assemble them to facilitate the review.

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