Which term defines standards that are optional but recognized?

The term that defines standards that are optional but recognized is consensus standards. These standards are typically developed through a collaborative process among various interest groups, including industry representatives, government agencies, and technical experts. Because they are established through consensus, they are often respected and seen as best practices within a specific field, although adherence to them is not legally required.

Consensus standards are valuable because they accommodate a variety of perspectives and foster cooperation among stakeholders. While model codes may also provide guidance, they are often more prescriptive and may be adopted as legal requirements in certain jurisdictions. Mandatory regulations, on the other hand, are enforceable laws that require compliance, making them distinct from the voluntary nature of consensus standards. Local ordinances refer to regulations enacted by local governments that can vary widely and may or may not reference consensus standards, thus further highlighting the unique position of consensus standards as essentially recognized yet optional guidelines.