Certified Lean Six Sigma Black Belt (CLSSBB)
Exam Code: CLSSBB-001
The Certified Lean Six Sigma Black Belt (CLSSBB) certification validates knowledge of Lean Six Sigma methodology, DMAIC, process improvement, project leadership, statistical analysis, waste reduction, quality management, team leadership, control plans, hypothesis testing, and business performance improvement.
- Exam Breakdown
- Domain Breakdown
- Access Breakdown
Exam Format
- Exam Code: CLSSBB-001
- Certification Level: Professional
- Exam Duration: 120 minutes / 2 hours
- Passing Score: 70% / 70 out of 100 correct answers
- Unscored Content: GAQM does not officially state separate unscored questions for this exam. Candidates should treat all exam questions as scored.
Exam Details
- Question Types: Multiple choice
- Number of Questions: 100 questions
- Hands-On Questions: The exam does not officially list hands-on lab questions. It assesses Lean Six Sigma knowledge through multiple-choice questions.
Exam Policies
- Offline Proctoring: This exam is not listed as an offline Pearson VUE or test-center exam. It is conducted in AI-proctored online mode through GAQM.
- Online Proctoring: The exam can be taken anytime, anywhere within the voucher validity period through GAQM’s AI-proctored online exam system.
- Waiting Period: The exam voucher includes two attempts. If a candidate does not pass within two attempts, a new voucher must be purchased.
- Retake Fee: A new exam voucher must be purchased if the candidate fails both included attempts.
Certification Validity and Renewal
- Validity: Valid for life
- Renewal Options: No renewal is required because the certification is valid for life.
Exam Fee
- Base Fee: $220 USD for the Exam Voucher
- Premium Package with E-Book: $300 USD
- Standard E-Course Package: $85 USD
- Taxes: Country-specific taxes may apply
. Example: In India, 18% tax applies, making the exam voucher total $259.60 USD ($220 + $39.60 tax), the premium package total $354 USD ($300 + $54 tax), and the standard e-course package total $100.30 USD ($85 + $15.30 tax)
Prerequisites
There are no formal prerequisites for taking the CLSSBB-001 exam. However, it is recommended to have:
- Understanding of Lean Six Sigma concepts and process improvement methods
- Knowledge of DMAIC phases and quality management principles
- Experience participating in or leading process improvement initiatives
- Familiarity with statistical analysis, control charts, hypothesis testing, and project leadership concepts
Exam Topics
- Organizational Roadblocks and Lean Management: Resistance analysis, continuous improvement approaches, Lean, Six Sigma, TAKT time, cycle time, PCE, lead time, SWIP, setup time, changeover time, 5S, Kaizen, SMED, and Heijunka
- Pre-define DMAIC: DMAIC versus DFSS, project prioritization matrix, enterprise-wide view, line-of-business view, NPV, and IRR
- Define Phase: Project charter, team dynamics, SIPOC/COPIS, VOC, VOB, VOP, CTQ, CTC, CTS, Kano Model, Quality Function Deployment, Rolled Throughput Yield, and Six Sigma definition
- Measure Phase: Data types, distribution models, central tendency, dispersion, measurement systems analysis, Variables GAGE RR, Attribute RR, Cp, Cpk, Cpkm, variation, variability, and capability
- Analyze Phase: Linear regression, multiple regression, curvilinear regression, fishbone diagrams, Pareto charts, common causes, special causes, hypothesis tests, and statistical validation
- improve Phase: Cost-benefit analysis, solutions prioritization matrix, Pugh Matrix, design of experiments, full factorial experiments, fractional factorial experiments, and response surface designs
- Control Phase: Taguchi’s Loss Function, control charts, measurement system re-analysis, control plan, project storyboard transfer, project closure, total productive maintenance, and Lean process improvement
Intended Audience
- The CLSSBB certification is ideal for professionals leading Lean Six Sigma process improvement projects, including roles such as:
- Project Manager
- Quality Manager
- Process Improvement Manager
- Lean Six Sigma Consultant
- Continuous Improvement Specialist
Career Impact
Jobs You Can Get:
- Lean Six Sigma Black Belt, Process Improvement Manager, Quality Manager, Operations Manager, Project Manager, Business Process Analyst, Continuous Improvement Consultant, and Operational Excellence Specialist.
Average Salary:
- Varies by country — U.S.: $85,000–$125,000 USD,
- India: ₹8,00,000–₹22,00,000 INR,
- United Kingdom: £45,000–£75,000 GBP,
- UAE: 150,000–280,000 AED per year.
Why It’s Valuable:
- Recognized process improvement certification that validates Lean Six Sigma knowledge, DMAIC expertise, statistical analysis capability, quality leadership, and ability to lead measurable business improvement projects.
Exam Mode
The exam is proctored and can be taken:
- Online through GAQM’s AI-proctored exam system
- Through the “My Exam(s)” tab in the candidate’s GAQM profile after applying the voucher code
Exam Booking Link
- Book your CLSSBB Exam via GAQM — Click here (https://gaqm.org/certifications/lean_six_sigma/clssbb)
Once you pass the exam
- Receive the Certified Lean Six Sigma Black Belt (CLSSBB) certificate
- Receive an e-certificate and digital badge if you qualify in the exam
- Access certification details through your GAQM profile
- The certificate remains valid for life
Offers
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Top Reasons to Choose
Certified Lean Six Sigma Black Belt (CLSSBB)
Strong Lean Six Sigma Leadership
The CLSSBB certification builds advanced Lean Six Sigma knowledge, DMAIC expertise, statistical analysis skills, waste reduction methods, and project leadership capability for professionals leading measurable process improvement initiatives.
Useful for Quality and Process Roles
This certification supports project managers, quality professionals, engineers, supervisors, consultants, operations leaders, IT managers, and business professionals responsible for reducing defects, improving efficiency, and leading process improvement.
Career Growth and Global Relevance
Lean Six Sigma skills remain valuable across manufacturing, healthcare, logistics, IT, education, sales, purchasing, and service industries where organizations focus on quality, productivity, cost reduction, and customer satisfaction.
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FAQ
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Who should take the Certified Lean Six Sigma Black Belt (CLSSBB) exam?
The CLSSBB exam is suitable for professionals who lead Lean Six Sigma process improvement projects or want advanced improvement knowledge. It is useful for project managers, quality professionals, engineers, supervisors, managers, directors, process owners, consultants, and professionals in manufacturing, operations, IT, healthcare, logistics, education, sales, and services.
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How difficult is the CLSSBB exam?
The CLSSBB exam is considered intermediate to advanced because it covers DMAIC, Lean tools, statistical analysis, process capability, hypothesis testing, regression, design of experiments, control charts, and project leadership. Candidates must answer 100 multiple-choice questions in 120 minutes and score at least 70% to pass successfully.
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Why does GAQM offer the CLSSBB certification?
GAQM offers CLSSBB to validate professional knowledge in Lean Six Sigma project execution, quality improvement, waste reduction, statistical analysis, and leadership. The certification helps candidates demonstrate understanding of DMAIC, Lean principles, team dynamics, process capability, control methods, and measurable business performance improvement through structured improvement projects.
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What tools and resources can be used to prepare for the CLSSBB exam?
Candidates can prepare using the official GAQM course outline, e-course, e-book or premium package, sample exam, and structured study of Lean management, Six Sigma, DMAIC, project charters, SIPOC, VOC, measurement systems analysis, regression, hypothesis testing, design of experiments, control charts, and process improvement tools.
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Is the CLSSBB certification still valuable in 2026?
Yes, CLSSBB remains valuable in 2026 because organizations continue to prioritize quality, efficiency, cost reduction, customer satisfaction, and process improvement. Professionals who can reduce variation, remove waste, lead improvement teams, analyze data, and deliver measurable results remain valuable across manufacturing, healthcare, logistics, IT, and services.
