Informational reference only. Not legal advice. Verify with the governing authority before you build.
Trust

Report an error

Found a number, citation, or link that looks wrong or out of date? Tell us and it goes into the review queue for that record. A person re-checks it against the source before anything changes.

Reader corrections are one of the main ways an entry gets fixed after it is published. The more specific you are, the faster we can verify and correct it. If you have a primary source that shows the right value, please add it.

On any requirement page you can also use the Flag this fact link next to a specific fact, which scopes the report to that exact record.

Have a general question or a partnership inquiry instead? Use contact. Want to understand how records are checked in the first place? See how we verify.