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USCOO O-1A preparation

Evidence & documents

Are more recommendation letters better? Can a famous recommender make the difference?

Updated: October 29, 2026

There is no standard number of letters for every applicant. A letter should explain how the recommender knows your work, your specific contribution and its significance, with objective supporting exhibits where possible. Reputation cannot replace facts, and general praise cannot fill every evidence gap. Check that each letter has specific, verifiable content and prepare objective support.

Next step

Organize letter facts and supporting exhibits.

Organize letter facts and supporting exhibits →

Official policy resources

Use the official rules applicable at filing and the notices for your individual case.

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