- AALSSC's LSSGB exam is 60 questions, 90 minutes, and requires a 75% passing score.
- Process mapping, Facilitation, and Problem solving are each weighted 20% - 60% of the exam combined.
- The exam is open book/open notes with a calculator allowed, but remote proctoring is prohibited.
- Exam fee is USD 395; recertification via documentation runs USD 59 every three years.
Quick Facts Snapshot
If you only have five minutes before scheduling your test, this is the section to read. Every number below comes directly from the AALSSC Lean Six Sigma Green Belt program - not a generic industry average.
| Item | Detail |
|---|---|
| Certifying body | American Association for Lean Six Sigma Certification (AALSSC) |
| Exam format | 60 multiple-choice questions, including scenario-based items |
| Time limit | 90 minutes |
| Passing score | 75% |
| Exam fee | USD 395 |
| Delivery | Online, with a candidate-arranged approved in-person proctor |
| Resources allowed | Open book, open notes, calculator permitted |
| Certification validity | 3 years |
| Renewal cost | USD 59 (documentation route) |
For the full context behind each of these numbers - including how the fee compares to renewal costs - see the LSSGB Certification Cost 2026 breakdown and the dedicated page on the LSSGB passing score.
Domain Weights at a Glance
The exam blueprint is organized into six domains. Three of them are tied for the largest share of the test, which should directly shape how you allocate review time.
| Domain | Weight |
|---|---|
| 1. Basics/Background of Lean Six Sigma | 10% |
| 2. Process mapping | 20% |
| 3. Facilitation | 20% |
| 4. Analyze data | 15% |
| 5. Problem solving | 20% |
| 6. Lean Six Sigma countermeasures | 15% |
For a domain-by-domain walkthrough with example task statements, read the LSSGB Exam Domains 2026 guide. If you're still deciding whether the workload is manageable given your schedule, How Hard Is the LSSGB Exam? breaks down the difficulty factors in more detail.
Registration & Exam-Day Mechanics
The AALSSC LSSGB exam has a few procedural requirements that trip up candidates who assume it works like a typical remote-proctored test. It doesn't.
- Application approval comes first. You cannot simply pay and sit for the exam - your application must be approved before scheduling.
- You arrange your own proctor. The exam is delivered online, but requires a candidate-arranged, approved in-person proctor - not an automated remote-proctoring service.
- Remote proctoring is explicitly prohibited. This is a firm rule under the current proctor policy (Version 10, 2025), not a suggestion.
- Location matters. A public, distraction-free location is required. Testing at home is only permitted through an approved accommodation.
- Browser restrictions apply. Only the exam browser may be open during the test - no secondary tabs, apps, or reference software beyond your physical notes.
- Self-study is permitted. There's no mandated training course requirement to sit the exam, though AALSSC does offer training resources if you want structured instruction.
Key Takeaway
Book your proctor and testing location before you finalize a study timeline - logistics can take longer to arrange than the review itself. Confirm eligibility details early using the LSSGB Requirements guide and check open windows via the LSSGB Exam Dates 2026 page.
One-Line Summary of Each Domain
Use this as a rapid-fire refresher, not a substitute for full domain study. Each entry reflects what the blueprint actually tests, based on the GB-2 job-task analysis in the current Green Belt study guide.
Domain 1: Basics/Background of Lean Six Sigma (10%)
Foundational vocabulary and history - DMAIC structure, roles (Green Belt vs. other belts), and the core philosophy connecting Lean waste elimination with Six Sigma variation reduction.
- Know the purpose of each DMAIC phase before diving into tool-level detail
Domain 2: Process mapping (20%)
Visual representation of workflows - SIPOC diagrams, value stream mapping, flowcharts, and identifying non-value-added steps.
- Be able to read a map and identify bottlenecks or handoff failures, not just draw one
Domain 3: Facilitation (20%)
Leading teams through improvement work - meeting structure, stakeholder engagement, brainstorming techniques, and managing group dynamics during process discussions.
- Expect scenario questions asking how you'd respond to a disengaged or resistant team member
Domain 4: Analyze data (15%)
Interpreting basic statistical and graphical tools to find root causes - Pareto charts, histograms, run charts, and simple variation concepts.
- Focus on interpretation over calculation; the exam favors reading outputs correctly
Domain 5: Problem solving (20%)
Structured root-cause techniques - fishbone diagrams, 5 Whys, and applying the Analyze/Improve phases of DMAIC to real scenarios.
- Practice scenario items where you must choose the next logical step, not just the correct tool name
Domain 6: Lean Six Sigma countermeasures (15%)
Sustaining improvements - mistake-proofing (poka-yoke), standard work, control plans, and other measures that prevent problems from recurring.
- Know the difference between a temporary fix and a durable countermeasure
A deeper look at question phrasing, sample scenario logic, and preparation sequencing is available in the LSSGB Study Guide 2026.
Recertification & Renewal Numbers
Certification doesn't end at the exam. LSSGB credentials issued by AALSSC are valid for three years, and renewal follows a documented, non-arbitrary path.
- Documentation-based renewal: USD 59, requiring one professional-development activity plus two Lean Six Sigma projects or events that you led or facilitated.
- Retesting alternative: If you haven't accumulated the required project/activity documentation, retaking the exam is an acceptable substitute path.
For the complete cost comparison between initial certification and renewal cycles, see LSSGB Certification Cost 2026: Complete Pricing Breakdown. If you're weighing whether the ongoing investment pays off, Is the LSSGB Certification Worth It? lays out the ROI considerations.
A Compressed Final-Review Schedule
This isn't a full study plan - it's a short final-review sequence for candidates who already understand Lean Six Sigma concepts and need a structured pass before exam day. Notice the time allocation mirrors domain weight, not domain order.
Process mapping + Facilitation
- Review SIPOC/value stream examples and re-work at least three scenario questions per domain
- Practice facilitation scenarios involving conflict or stalled discussions
Problem solving + Analyze data
- Drill root-cause tools (fishbone, 5 Whys) against realistic case prompts
- Practice reading Pareto charts and run charts for interpretation, not construction
Countermeasures + Basics/Background
- Study mistake-proofing and control-plan concepts
- Do a light pass on DMAIC vocabulary and belt-role terminology
Logistics + timed practice
- Confirm proctor, location, and browser setup meet the current Version 10 proctor policy
- Run at least one full 60-question, 90-minute timed simulation
Notice that Week 1 covers two 20%-weighted domains, while the final content week covers two lighter domains combined. That's intentional - spend review time proportional to blueprint weight, not personal comfort level. For a broader breakdown of study sequencing logic, revisit the LSSGB Study Guide 2026.
Who Actually Uses This Credential
LSSGB credential holders typically work in process improvement, operations, quality, and manufacturing support roles where facilitation and process mapping skills are used directly - not just tested. Because Facilitation and Process mapping are both weighted at 20%, the exam reflects the reality that Green Belts are often expected to run improvement meetings and document workflows, not just crunch numbers behind a desk.
If you're evaluating how this credential fits into a career path or job search, the LSSGB Jobs overview and LSSGB Salary Guide 2026 go into more depth on typical role types and compensation considerations. For a plain-language explanation of the credential itself, start with What Is LSSGB Certification? or the shorter LSSGB Meaning explainer.
Key Takeaway
Before your final review, run a handful of timed practice questions on our LSSGB practice test platform to confirm your pacing across all six domains, not just the ones you find easiest.
FAQ
Only through an approved accommodation. Standard testing requires a public, distraction-free location with a candidate-arranged in-person proctor - remote proctoring is prohibited.
Yes. The exam is open book and open notes, and a calculator is allowed. However, only the exam browser may be open during testing - no other software or tabs.
There are 60 multiple-choice questions, including scenario-based items, with a 90-minute time limit and a required passing score of 75%.
You can renew through documentation (USD 59, plus one professional-development activity and two led/facilitated Lean Six Sigma projects) or retake the exam as an alternative path.
Process mapping, Facilitation, and Problem solving each carry 20% weight and together make up 60% of the exam - prioritize these before the lower-weighted domains.
Keep this cheat sheet handy as a quick reference, but pair it with full-length review using the LSSGB Exam Domains 2026 guide and timed practice on our practice test site before you lock in your exam date.