Terms of use

Informational use. The directory is provided for informational and research-reference use. It is offered as-is, without warranty of accuracy, completeness or fitness for any purpose.

No commercial relationship. We accept no placement fees, affiliate revenue or sponsorship from indexed sources. Inclusion is not a commercial relationship and exclusion is not a judgement.

Third-party content. Certificates, prices and descriptions originate with third parties. Links to external storefronts are references, not recommendations, and we are not responsible for their content or conduct.

Corrections. Sources and researchers may submit corrections with supporting documentation. Reviewed corrections update the record and its review date; we do not remove accurate records on request.

Permitted use. You may read, cite and link to records. Bulk scraping, redistribution of the dataset, or presenting records as an endorsement is not permitted.