A document established through consensus-based activities of an accredited organization is known as?

The correct term that describes a document established through consensus-based activities of an accredited organization is "An International Standard." This term typically refers to standards that are developed by international standard-setting bodies, ensuring consistency and quality on a global scale. These standards are created to facilitate international trade, enhance product safety, and improve compatibility across different markets.

While an American National Standard does imply that it has undergone a consensus-based process within a national context, the broader and more inclusive nature of international standards allows them to apply across various countries and regions, making them more universally recognized.

In contrast, "A Contract Management Standard" is a specific type of standard focusing on contract management practices, which may or may not have the same consensus-based background as international standards. "A Regulatory Standard" typically refers to standards set forth by government agencies to regulate industry practices, which may not involve the same consensus-driven approach as international or national voluntary standards.