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What type of union issues the advisory opinion letter for musicians in O-1?

In the O-1 for musicians, the advisory opinion letter comes from a peer union or association in the field, such as the American Federation of Musicians (AFM). Learn about the role of this opinion in the overall body of evidence for the petition.

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Victoria Harper

Editor-in-Chief

Updated on July 17, 2026
1 min read
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In the O-1 process for musicians, an advisory opinion letter issued by a union or association representing professionals in the music field is typically included as part of the petition. It functions as an industry assessment of the artist’s relevance and excellence.

In practice, this opinion comes from a recognized peer organization in the music world. One frequently cited example is the American Federation of Musicians (AFM), but the appropriate entity depends on the artist’s profile and area of work.

The purpose of the letter is to attest, according to industry standards, that the professional meets the level of distinction expected for the visa and that their work has a significant impact in the field. It is part of the overall body of evidence, alongside awards, reviews, publications, and expert letters.

Since the appropriate organization and the specifics of the opinion may vary by case, it is worth checking the latest guidance on the official USCIS website or consulting a specialist before requesting the letter.

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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What type of union issues the advisory opinion letter for musicians in O-1?

In the O-1 for musicians, the advisory opinion letter comes from a peer union or association in the field, such as the American Federation of Musicians (AFM). Learn about the role of this opinion in the overall body of evidence for the petition.

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