Corrections Policy

To USA aims to correct factual errors promptly, clearly, and in proportion to their significance.

How corrections are handled

• typographical, punctuation, and obvious technical errors may be fixed without a separate notice;
• a material factual error receives a correction note in the article;
• if an error changes the central conclusion, the note explains what changed and why;
• updates to information that changed over time are identified by an updated date.

How to report an error

Use the Contact and Cooperation page. Include the URL, the disputed passage, and, when possible, a source supporting the correction. Every substantiated request is reviewed, but disagreement with an author’s opinion is not a factual correction.

Updated: August 17, 2026.