The NCC is a voluntary certification and is not required for supervised or independent practice, it identifies counselors who have voluntarily sought and met established professional standards.

Tournament organizers may apply for voluntary certification.

Here are the examples of voluntary certification:

The Academy of Certified Archivists offers voluntary certification for archivists.

The CRC is a voluntary certification and is not required for supervised or independent practice, although it may be a hiring requirement of certain employers.

Dietary management is not usually subject to professional regulation, although voluntary certification is preferred by many employers.

In the United States, voluntary certification is available through many private organizations.

TUV GS Mark, a voluntary certification and recognized symbol in Germany for safety-tested products.

By the voluntary certification it is the manufacturer who chooses the parameters on which to certificate.

Green Seal's flagship program is voluntary certification of products and services to its standards.