The GAQM Certified Lean Six Sigma Black Belt (CLSSBB) exam spans 7 domains, and they are not weighted equally. The top areas are Pre-define / Define Phase, Measure Phase, Organizational Roadblocks and Lean Management. Budget your study hours to match those weights; the full domain list is in the outline section further up this page.

The CLSSBB-001 exam is GAQM's official certification test, and passing it earns the GAQM: Lean Six Sigma credential at the Advanced / Black Belt level. In career terms, it is verified proof of skill — the kind that moves you up the shortlist when your company works with GAQM technologies, or when you apply to one that does. The same track also includes Certified Lean Six Sigma Yellow Belt (CLSSYB), Certified Lean Six Sigma Green Belt (CLSSGB), Certified Lean Six Sigma Master Black Belt (CLSSMBB), so this exam can anchor a longer certification plan.

You pass the GAQM Certified Lean Six Sigma Black Belt (CLSSBB) exam at 70% (70/100 correct answers), and each attempt costs USD 220 (voucher price) — fail, and that fee is due again in full for the retake. Treat mock exams as insurance: keep practicing with ITExamDownload until your scores sit comfortably above 70% (70/100 correct answers) twice in a row, then schedule the real CLSSBB-001 exam.

Please do. ITExamDownload offers a free demo download for the GAQM Certified Lean Six Sigma Black Belt (CLSSBB) exam — grab it from the product page or leave your email and we will send it over. Purchases come with 365 days of free updates; after that year, extending the update service costs 50% of the original price in your member zone.

The GAQM Certified Lean Six Sigma Black Belt (CLSSBB) exam packs 100 questions into 120 minutes. That ratio leaves almost no room for stalling, so time management is a trained skill, not luck. Our suggestion: rehearse full-length timed sessions in the ITExamDownload engine, learn to park a question and return later, and walk into the CLSSBB-001 exam with a pacing plan already rehearsed.

No formal prerequisites; e-course recommended but not mandatory. Since GAQM revises these rules from time to time, confirm the current prerequisites on the official exam page (https://gaqm.org/certifications/lean_six_sigma/clssbb) before booking your GAQM Certified Lean Six Sigma Black Belt (CLSSBB) exam.

Delivery is effectively instant: your CLSSBB-001 download link is emailed within one minute of payment, with no cap on how many computers you install it on. If the email has not shown up within 2 hours, check spam and contact our 7x24 support — we reply quickly and resend immediately. If you fail the GAQM Certified Lean Six Sigma Black Belt (CLSSBB) exam itself, the refund policy applies when you took the corresponding exam within 60 days of purchase: submit a scanned enrollment slip and the official Score Report PDF within 2 days after the exam, and the refund is processed within 7 days. Not covered: attempts within 3 days of purchase, exams never actually taken, free materials, and expired orders — and the candidate name must match the payer name. Prefer material over money? Exchange for two free exam products of equal value and keep the update service on your original purchase.