Lean Six Sigma Green Belt (IASSC ICGB) Pass Rate 2026
Complete analysis of Lean Six Sigma Green Belt (IASSC ICGB) exam difficulty, pass rates, and strategies to pass on your first attempt.
Pass Rate
Difficulty Verdict
Challenging
Recommended Study Time
8-12 weeks
Typical Attempts
1-2 attempts average
With only Not published of candidates passing, Lean Six Sigma Green Belt (IASSC ICGB) is a demanding exam even for experienced professionals. The majority who fail cite insufficient preparation depth or gaps in specific domains. IASSC (International Association for Six Sigma Certification) designs this exam to validate real competency, not just textbook knowledge. At $350-$402 per attempt, failing is costly. The certification is valid for Recognised perpetually; Current status lasts 3 years, so investing in solid prep pays off long-term.
Top Reasons Candidates Fail Lean Six Sigma Green Belt (IASSC ICGB):
Do This for Lean Six Sigma Green Belt (IASSC ICGB)
- 100 closed-book questions in 3 hours, minimum score 70 percent, no prerequisites to sit
- Roughly 20 questions come from each DMAIC phase, so no phase can be skipped
- Analyze is the heaviest study load: t-tests, ANOVA, Mann-Whitney, Kruskal-Wallis, chi-squared
- A non-programmable four-function or scientific calculator is allowed, Minitab and phone calculators are not
Avoid This
- Answering based on real-world experience instead of PMI methodology
- Ignoring Agile/hybrid questions — they're ~50% of the exam
- Only reading the PMBOK without practicing situational questions
- Skipping the process of elimination technique on tricky questions
Ready to Beat the Odds?
Get our complete Lean Six Sigma Green Belt (IASSC ICGB) study guide with practice questions.