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How does filling out Form I-129 work for the O-1?

Form I-129 opens the O-1 petition process: it is the petition that the employer or agent submits to the USCIS. Learn what to fill in, what evidence to attach, and where to find the latest official version.

Written by

Victoria Harper

Editor-in-Chief

Updated on July 17, 2026
1 min read
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Form I-129 (Petition for a Nonimmigrant Worker) is the starting point of an O-1 petition. Through it, an employer or agent in the United States asks the USCIS for authorization for a professional with extraordinary ability to work temporarily in the country.

When completing the petition, the form gathers information about the petitioner (the company or agent) and the beneficiary (the professional), along with a description of the activity to be performed. Each section must contain accurate data that is consistent with the supporting documents.

The following evidence is submitted alongside Form I-129:

  • Materials demonstrating the recognition and significance of the work.
  • Statements and letters from experts or organizations in the field.
  • Contracts, itineraries, and the schedule of activities in the U.S.

Since the form and its instructions are updated periodically, always use the most recent version on the official USCIS website and follow the guidance provided there, including regarding applicable fees. Given the complexity involved, many petitioners rely on specialized assistance to organize everything before filing.

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 does filling out Form I-129 work for the O-1?

Form I-129 opens the O-1 petition process: it is the petition that the employer or agent submits to the USCIS. Learn what to fill in, what evidence to attach, and where to find the latest official version.

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