CSSGB Practice Test 2026 — Free CSSGB Exam Prep Questions
The ASQ Certified Six Sigma Green Belt exam is taken by quality, operations and engineering professionals who support or lead DMAIC improvement projects. Our practice questions follow the 2022 ASQ Green Belt Body of Knowledge from the organizational overview through Define, Measure, Analyze, Improve and Control, with worked calculations for sigma level, capability indices, control limits and DOE effects.
An insurance back office audits 200 claims every day. Over 20 days, 240 of the 4,000 claims audited were defective. What is the UCL of the p chart?
CSSGB format, scoring & key facts
Computer-based through Prometric, at a test center or with online remote proctoring, in English: 4 hours 18 minutes of exam time in a 4.5-hour appointment. The exam is open book (bound references only; Post-it notes allowed only as tabs). It has an on-screen basic scientific calculator, and silent non-programmable hand-held calculators are allowed. A paper-and-pencil version (100 questions, 4 hours) is offered in Mandarin in certain locations.
| Questions | 110 multiple-choice (100 scored + 10 unscored), one correct answer each |
|---|---|
| Exam time | 4 hours 18 minutes (4.5-hour appointment) |
| Body of Knowledge | 2022 CSSGB BoK, six domains (in use since August 2022) |
| Passing score | 550 out of a possible 750 |
| Open book | Bound references only; no question-and-answer collections |
| Calculator | On-screen basic scientific; silent non-programmable hand-held allowed |
| Delivery | Prometric test center or online remote proctoring (English) |
| Fee | $483 ($383 ASQ members); retake $283 |
| Experience | 3 years in Body of Knowledge areas; no education waivers |
| Recertification | None: CSSGB is a lifetime certification |
Facts last verified Oct 18, 2026. Source: www.asq.org/cert/six-sigma-green-belt. Always confirm details with ASQ before your exam.
When can you take the CSSGB?
Computer-based CSSGB exams run in month-long testing windows in even-numbered months, each with an application deadline a few weeks before. Upcoming windows: December 1–31, 2026 (apply by November 9, 2026); February 1–28, 2027 (apply by January 11, 2027); April 2027 (apply by March 8, 2027).
What the CSSGB covers
Every PrepBanq CSSGB test mirrors the official domain weights.
Domain distribution
% of the exam| Content domain | Weight | ≈ Questions on exam | Our practice questions |
|---|---|---|---|
Overview: Six Sigma and the Organization11 scored questions: the value of Six Sigma, organizational goals and metrics, lean principles and value stream mapping, DFSS road maps and FMEA. | 11% | ~11 | 16 questions → |
Define Phase20 scored questions: project identification and SIPOC, voice of the customer, project management basics, management and planning tools, business results (DPU, RTY, DPMO) and team dynamics. | 20% | ~20 | 30 questions → |
Measure Phase20 scored questions: process mapping, probability and statistics, distributions, collecting and summarizing data, measurement system analysis, and process capability. | 20% | ~20 | 30 questions → |
Analyze Phase18 scored questions: multi-vari studies, correlation and regression, hypothesis testing, gap analysis and root cause analysis. | 18% | ~18 | 27 questions → |
Improve Phase16 scored questions: design of experiments, implementation planning, and lean tools for waste elimination and cycle-time reduction. | 16% | ~16 | 24 questions → |
Control Phase15 scored questions: statistical process control, control plans and other ways to sustain improvements, and TPM and the visual factory. | 15% | ~15 | 23 questions → |
How to register for the CSSGB
Eligibility
3 years of full-time, paid, on-the-job experience in one or more areas of the CSSGB Body of Knowledge. Educational waivers are not granted.
Retake policy
Retakes within two years of your previous attempt are charged the reduced retake fee.
Score release
Computer-based exams show your result on screen when you finish, and ASQ follows up by email. Candidates who don't pass get a performance summary broken down by Body of Knowledge subtopic.
Credential renewal
Lifetime certification: the CSSGB has no recertification requirement.
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CSSGB FAQ
How many questions are on the CSSGB?
The CSSGB has 110 questions (100 of them scored) and you have 4 hours 18 minutes to finish. Question types: Multiple choice with one correct answer: 100 scored and 10 unscored questions covering the six domains of the 2022 CSSGB Body of Knowledge..
How long is the CSSGB exam?
Testing time for the CSSGB is 4 hours 18 minutes.
What is the passing score for the CSSGB?
CSSGB passing standard: 550 out of a possible 750. Score range: Scaled score out of a possible 750.
How much does the CSSGB cost?
The CSSGB registration fee is $483 exam fee (ASQ members save $100, so $383). Retake $283. Rescheduling costs $130 and must be done at least 5 days before the appointment.. Check the official site for current fees before you register.
What is on the CSSGB?
The CSSGB covers Overview: Six Sigma and the Organization (about 11%), Define Phase (about 20%), Measure Phase (about 20%), Analyze Phase (about 18%), Improve Phase (about 16%), Control Phase (about 15%).
Who administers the CSSGB?
The ASQ Certified Six Sigma Green Belt (CSSGB) Exam is administered by ASQ. Delivery: Computer-based through Prometric, at a test center or with online remote proctoring, in English: 4 hours 18 minutes of exam time in a 4.5-hour appointment. The exam is open book (bound references only; Post-it notes allowed only as tabs). It has an on-screen basic scientific calculator, and silent non-programmable hand-held calculators are allowed. A paper-and-pencil version (100 questions, 4 hours) is offered in Mandarin in certain locations..
Can you retake the CSSGB?
Retakes within two years of your previous attempt are charged the reduced retake fee.
Is there a free CSSGB practice test?
Yes. PrepBanq has 15 free CSSGB practice tests with 150 exam-style questions in the real CSSGB formats, and every answer is explained. No credit card is needed.
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