Six Sigma Yellow Belt Certification Guide

A Six Sigma Yellow Belt is an individual who usually has a small role in Lean Six Sigma improvement projects. He or she should understand the basics of the Lean Six Sigma Methodology and support larger improvement projects led by Green or Black Belts. A Six Sigma Yellow Belt should demonstrate understanding and competence in using the tools illustrated in the following map:


Here are examples of the tools that are taught in any Six Sigma Yellow Belt training:

  • SIPOC (PDF).
  • Gantt charts (PDF).
  • Process mapping (PDF).
  • Value analysis (PDF).
  • Fishbone diagram (PDF).
  • Check sheets (PDF).
  • Affinity diagram (PDF).
  • Descriptive statistics (PDF)..
  • Scatter plots (PDF).
  • Pareto analysis (PDF).

See all our downloadable PDFs which only cover the tools part of the Yellow Belt Certification. The other topics can be found on the left side of this web page.

The Certified Six Sigma Yellow Belt Body of Knowledge (BoK) also includes the following topics which are required for the certification exam (SSYB):

  • Six Sigma foundation and principles.
  • Six Sigma roles and responsibilities.
  • Lean foundation and principles.
  • Type of teams.
  • Stage of developing teams.
  • Communication methods.
  • Communication plan for projects.
  • Quantitative and qualitative data.
  • Common and special cause of variation.

For more information about how to prepare for the exam and how to apply for the certification, visit the official Yellow Belt webpage on the American Society for Quality website.