CSSGB exam outline: six BoK sections
The ASQ Certified Six Sigma Green Belt (CSSGB) exam is ASQ's exam for people who run or support improvement projects with the DMAIC method. ASQ's CSSGB Body of Knowledge spreads its 100 scored questions over an overview section and the five DMAIC phases, with Define and Measure the largest. Use your free check to find the phase where your score trails.
- Questions
- 110
- Time
- 258 minutes
- Exam fee (paid to ASQ, not us)
- $483
- Where
- Prometric test centers and Prometric live remote proctoring (ProProctor)
The six sections
- Define Phase (20 questions) and Measure Phase (20 questions): project selection and charters, process mapping, data collection, measurement systems and basic statistics.
- Analyze Phase (18 questions): finding root causes with data, including hypothesis testing and correlation.
- Improve Phase (16 questions) and Control Phase (15 questions): choosing and testing solutions, then holding the gains with control charts and control plans.
- Overview: Six Sigma and the Organization (11 questions).
The exam in brief
- Length: 110 multiple-choice questions in 4 hours 18 minutes, 10 of them unscored pretest questions mixed in at random.
- Book: open book with your own references and notes, bound and staying bound. No electronic copies.
- Calculator: a basic scientific calculator is on screen.
- Where you test: computer-based through Prometric, at a test center or by live remote proctoring.
- Passing score: a scaled score of 550.
Heading further into quality engineering? The CQE exam outline covers ASQ's quality engineer exam.
Try one question
Question 1 of the free 10-question check on ASQ CSSGB. No signup. Then ask Mic, the AI study assistant, why the answer is right and the others are wrong.
Define Phase
A team builds a SIPOC for a hotel's room-cleaning process. Where does "the linen service that delivers clean sheets" belong?
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See which of the six sections to work on first. Take the free 10-question CSSGB check. It is weighted to the BoK, needs no signup and explains every answer.
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Sources
Show the list
- Certified Six Sigma Green Belt, ASQ, read 9 November 2026.
- CSSGB Body of Knowledge, ASQ, read 9 November 2026.
- ASQ certification candidate handbook, ASQ, read 9 November 2026.
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The ASQ CSSGB course
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- 6modules of lessonsEvery task on the outline
- 2full-length timed exams110 questions in 258 minutes each
- 300practice questionsEach one explained
- 1week-by-week study planSet to your exam date
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Exam facts
| Questions | Computer-based: 110 multiple-choice questions, 100 scored and 10 unscored pretest questions in random order, English only. Paper-based: 100 questions, no pretest, offered in Mandarin at some locations |
| Time | 258 minutes |
| Book | Open book: candidates bring their own references, notes included, bound and staying bound (stitched or glued, or ring, spiral or plastic snap binders, brads or screw posts; hand-stapled documents do not count). No electronic copies. Post-it notes only as tabs, attached before arrival. No collections of questions and answers or refresher quizzes unless the questions are removed or obscured. No blank or unbound tablets, unbound notes, slide or wheel charts |
| Calculator | A basic scientific calculator is on screen in every computer-based exam, and Prometric staff can hand out a basic calculator on request. Your own must be silent, hand-held and battery-operated with no programmable memory; TI-89-class calculators are not allowed |
| Passing | Scaled passing score of 550. The outcome is set by the total raw score on the form; passing points are carried between forms by pre-equating. Passing candidates are not told their number correct |
| Where you test | Prometric test centers and Prometric live remote proctoring (ProProctor) |
| Exam fee (paid to ASQ, not us) | $483 |
| Retakes | Retake fee $283 each attempt, no limit on attempts. The retake must be within two years of the last attempt (otherwise a new application at full fee) and not in the same testing window as the attempt before |
| Eligibility | Three years of full-time, paid on-the-job experience in one or more areas of the CSSGB Body of Knowledge. No education waivers |
What the exam covers
| Overview: Six Sigma and the Organization | 11% |
| Define Phase | 20% |
| Measure Phase | 20% |
| Analyze Phase | 18% |
| Improve Phase | 16% |
| Control Phase | 15% |
Facts come from ASQ's own documents (sources above); the latest source retrieval was . If something has changed, tell us and we will correct it within 2 business days.
Your next step
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