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The Certified Six Sigma Black Belt is a professional who can explain Six Sigma philosophies and principles, including supporting systems and tools. A Black Belt should demonstrate team leadership, understand team dynamics and assign team member roles and responsibilities.
Black belts have a thorough understanding of all aspects of the define, measure, analyze, improve and control (DMAIC) model in accordance with Six Sigma principles. They have basic knowledge of lean enterprise concepts, are able to identify non-value-added elements and activities and are able to use specific tools.
Note: Six Sigma Black Belt certification requires that you complete at least one Six Sigma project and submit a project affidavit. Review frequently asked questions regarding projects and the affidavit/verification.
Download the Six Sigma Black Belt Certification Brochure (PDF, 383 KB).
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Download an Application (CBT Delivered Exams) (PDF, 148 KB).
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Here are the experience and exam specifics for the Certified Six Sigma Black Belt.
Six Sigma Black Belt requires two completed projects with signed affidavits or one completed project with signed affidavit and three years of work experience in one or more areas of the Six Sigma Body of Knowledge. For more information, please see the list of Six Sigma Project Affidavit FAQs. You do not need to be a Certified Six Sigma Green Belt.
Work experience must be in a full time, paid role. Paid intern, co-op or any other course work cannot be applied towards the work experience requirement.
These are the minimum expectations of a Certified Six Sigma Black Belt.
I: Organization-wide Planning and Deployment
II: Organizational Process Management and Measures
III: Team Management
IX: Design For Six Sigma (DFSS) Framework and Methodologies
The topics in this Body of Knowledge include additional detail in the form of subtext explanations and the cognitive level at which test questions will be written. This information will provide guidance for the candidate preparing to take the exam.
The subtext is not intended to limit the subject matter or be all-inclusive of what might be covered in an exam. It is meant to clarify the type of content to be included in the exam. The descriptor in parentheses at the end of each entry refers to the maximum cognitive level at which the topic will be tested. A complete description of cognitive levels is provided at the end of this document.
Please Note: The Body of Knowledge for certification is affected by new technologies, policies, and the changing dynamics of manufacturing and service industries. Changed versions of the examination based on the current Body of Knowledge are used at each offering.
Download the Certified Six Sigma Black Belt Body of Knowledge
ASQ designed these resources to help you get ready to take the exam. Have you already reviewed these items? Then choose an exam date below.
Review a list of references that provide the basis for the exam questions. These items give you a better idea of the material covered in the exam.
Take an interactive sample exam to receive additional feedback on the questions that appear in the sample exam. Print out the paper-and-pencil sample exam (PDF, 349 KB) to see the actual test format, including instructions and test questions from past exams.
ASQ offers many books and training opportunities to help you prepare.
Need more training options? ASQ Sections and ASQ Forums/Divisions offer more training opportunities.
Each certification candidate is required to pass an examination that consists of multiple-choice questions that measure comprehension of the Body of Knowledge.
Computer Delivered - The CSSBB examination is a one-part, 165-question, four-and-a-half-hour exam and is offered in English only. 150 questions are scored and 15 are unscored.
Paper and Pencil - The CSSBB examination is a one-part, 150-question, four-hour exam and is offered in English only.
All examinations are open book. Each participant must bring his or her own reference materials. Use of reference materials and calculators is explained in the FAQs.
To maintain the integrity of your Six Sigma Black Belt certification, ASQ requires that you recertify every three years. Find out the steps you need to take for recertification.
ASQ certification examinations are delivered by ASQ's testing partner, Prometric. The examination scheduling instructions in your eligibility letter will direct you to a section of Prometric's website, where you can select and schedule your examination date and location.