Traditionally, certification in the Six Sigma methodology was intended to be a dual and non-standard responsibility.  It was the responsibility of the company deploying Six Sigma and that of a currently practicing Master Black Belt. This was to make it relevant and effective to the organization that was funding the effort.   

Six Sigma is NOT a “one size fits all” discipline.  It is culturally adaptive and can be used across all industries depending on the needs.  It is a broad and robust methodology that contains many tools and activities that may or may not be used by an organization to address performance issues depending on the diverse nature and needs of that industry, its customers and its challenges.  Many organizations have attempted to standardize the methodology, eliminate the need for Master Black Belt reviews and become the central organization of certification. This has worked to degrade Six Sigma’s ability to perform as it was originally intended.

The Cii has maintained its adherence to the original intent of the Six Sigma discipline yet formulated a standardized certification that applies across industries.  To that end, its certification process is organization, and/or industry specific and review and validation is still conducted by a practicing Master Black Belt who ensures adherence to the Define, Measure, Analyze, Improve, Control (DMAIC) problem-solving structure.  Embedded within all levels of Cii training are lessons in Change Management and continuous improvement mind-set (how to think) and behavior-set (how to act and not to act).



White Belt - Entry Level Six Sigma and Process Improvement

  • This certification requires delivery of a narrow scoped process improvement project that shows competency with the tools and techniques learned.
  • Focuses on the successful application of the most commonly used Six Sigma tools: Straight-Talk and Exit Strategy (Cii required), Charter, Baseline Evidence, Introduction to "Process Door" Analysis, and Introduction to "Data Door" Analysis.
  • Solution narrowing, selection and confirmation
  • Control Planning
  • May or may not include and written exam (depending on the organization 

Yellow Belt - Process Efficiency Improvement Focus

  • Requires previous Cii White Belt Certification and the satisfactory performance on a written exam
  • Requires delivery of a process specific waste reduction or efficiency improvement project
  • Focuses on the successful application of the previously used White Belt tools and the commonly used waste reduction and efficiency improvement tools: (9 types of wastes, 5s technique, Value Stream Mapping, Takt Time Analysis, and Theory of Constraints and Process Flow
  • Visual Control which includes: Change Management, Measures and Graphs and Standard Operating Procedures.


Green Belt - Process Effectiveness Improvement Focus

  • Requires previous Cii White and Yellow Belt Certification, satisfactory performance on a written exam, delivery of a two process specific defect reduction projects that show competency with root-cause analysis using descriptive and basic statistics, and the successful application of the previously used White and Yellow Belt tools (when applicable)
  • Critical to Quality characteristics and the Voice of the Customer
  • Change Acceleration
  • Focus on advanced analytical tools and techniques: Failure Mode and Effect Analysis (FMEA), Measure System Analysis and Validation, Gauge R&R, Cause and Effect Matrix, Shape and Normality, Root-Cause Analysis (RCA), Hypothesis Development and Testing, Continuous Data, Attribute Data Testing, Piloting, Statistical Process Control (SPC) and Management and Reaction Planning.

Note: All exams and testing are conducted under proctoring and is automatically corrected, providing immediate feedback upon completion.