Lean & Process Excellence · CLSSBB
Certified Lean Six Sigma Black Belt (CLSSBB)
For experts who lead complex improvement projects and coach Green Belts.
TrackLean & Process Excellence
Career stageAdvanced
AssessmentOnline exam
MaintenanceRenewal & CPD
Overview & who should apply
About the CLSSBB certification
The CLSSBB certification recognises advanced competence in Lean Six Sigma — leading complex, cross-functional projects, applying advanced statistical tools and mentoring improvement teams.
Who should apply: Experienced Green Belts, continuous improvement managers and operational excellence leads.
Body of knowledge
Core competence areas
The CLSSBB exam assesses applied competence across the following areas.
1
Project Selection & Business Case
2
Advanced Statistical Analysis
3
Design of Experiments
4
Hypothesis Testing & Regression
5
Lean Enterprise & Flow
6
Coaching & Leading Improvement Teams
How to get certified
Your path to CLSSBB
- Review the eligibility requirements for CLSSBB.
- Submit your application to IAQP.
- Prepare using the body of knowledge, an Approved Training Partner or self-study.
- Sit the independent online exam.
- Receive your verifiable CLSSBB certificate and maintain it through renewal and CPD.
Fees, validity & renewal
Application and exam fees, certificate validity and renewal requirements for CLSSBB are confirmed when you apply. Contact the IAQP team for current details.
Preparation
Related certifications in Lean & Process Excellence
Ready to earn your CLSSBB?
Submit your application and the IAQP team will confirm your eligibility and next steps.