IASSC Certified Lean Six Sigma Black Belt (ICBB) (ICBB) Exam Blueprint

ICBB

150Questions
240 minDuration
70/Percentage (IASSC: 70% fixed; ASQ: scaled score per exam cycle)Passing Score
$395Price
3 yearsValid For
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Exam Domains

1 Define Phase (project selection, VOC, SIPOC, charter) 15%
2 Measure Phase (process capability, MSA, data collection) 30%
3 Analyze Phase (hypothesis testing, root cause analysis) 25%
4 Improve Phase (DOE, solution implementation) 15%
5 Control Phase (control plans, SPC, sustainment) 15%

Exam Details

Question TypesMultiple Choice
FormatLinear (fixed-form, Pearson VUE or online proctored)
Online ProctoringAvailable
ID RequirementsGovernment-issued photo ID required. Name on ID must match registration exactly.
RenewalRequired -- IASSC: 3-year renewal cycle; no CEU/CPE required — renewal is knowledge-based via a renewal exam or by retaking the full exam. ASQ: 3-year recertification cycle requiring 18 Continuing Development Units (CDUs); or recertification by exam. Both organizations require active standing with their respective bodies.
PrerequisitesNo formal prerequisites; training strongly recommended (recommended)
Retake PolicyIASSC: no mandatory waiting period specified; standard retake fee applies. ASQ: retake available at next scheduled exam window; retake fee is the same as the initial exam fee.

Official Study Resources