The Six Sigma Green Belt operates in support or under the supervision of a Six Sigma Black Belt, analyzes and solves quality problems, and is involved in quality improvement projects. A Green Belt has at least three years of work experience and wants to demonstrate his or her knowledge of Six Sigma tools and processes.


  • Six Sigma and the Organization
  • Six Sigma – Define
  • Six Sigma – Measure
  • Six Sigma – Improve and Control
  • Six Sigma – Analyze


Three years of work experience in one or more areas of the Six Sigma Green Belt Body of Knowledge. This certification is NOT a requirement for Six Sigma Black Belt Certification.


Each certification candidate is required to pass a written examination that consists of multiple-choice questions that measure comprehension of the Body of Knowledge. The Six Sigma Green Belt examination is a four-hour, 100-question exam. It is offered in the English language only.