Yes — the free trial exists so customers can fully understand the system before buying. Download the sample CLSSBB practice questions at no cost, explore the interface, and check the verified answers yourself. Once you purchase, 365 days of free updates are included, and if the product expires, the update service renews at a 50% discount from your member zone.

The GAQM Certified Lean Six Sigma Black Belt (CLSSBB) blueprint is organized into 4 domains, led by Leadership and Project Management, Lean Six Sigma Tools and Techniques, and DMAIC Methodology. The complete weighted syllabus appears above on this page — it is the checklist your preparation should be measured against.

You will face 100 questions within 90 minutes on the CLSSBB exam. The real exam pressure comes from that ratio — knowledge alone does not finish exams on time. Rehearse with the iPassleader test engine's timed mode, repeat the same question sets until the answers consolidate, and pacing stops being a risk factor.

No formal prerequisite. Completion of the GAQM e-course is not mandatory but is highly recommended, as many exam questions are drawn from the course material.

Eligibility rules do get revised, so before booking, verify the current requirements on the official GAQM exam page.

Delivery takes effect immediately: download right after payment, with an email copy arriving within one minute. If 2 hours pass with no email, check spam and contact customer service — professional staff can remotely guide installation and use if needed. Downloads and simultaneous use are not limited, so every device you own can carry the material.

If you sit the CLSSBB exam within 60 days of purchase and do not pass, the iPassleader money back guarantee covers you: file within 2 days of the exam with a scanned enrollment slip and the official score report (PDF), and the claim is processed within 7 days. The candidate name must match the payer name; the policy excludes exams taken within 3 days of purchase, purchases never used in an actual exam attempt, free materials, and expired orders. If you prefer to keep preparing, exchange the product for two free exam packages of equal value and retain the update service on your original purchase.

The CLSSBB exam — full title Certified Lean Six Sigma Black Belt (CLSSBB) — is GAQM's own certification test, and passing it awards the GAQM certification certification at the Professional level. The certificate is valuable precisely because it is demanding: it proves to employers that your skills survived a vendor-built examination. It also serves as a stepping stone toward Certified Lean Six Sigma Yellow Belt (CLSSYB), Certified Lean Six Sigma Green Belt (CLSSGB), Certified Lean Six Sigma Black Belt (CLSSBB), Certified Lean Six Sigma Master Black Belt (CLSSMBB).

The passing score is 70%, and the official registration fee is Not officially specified (varies by package/voucher purchase). Note that the fee pays for a single attempt — a retake is charged at full price again, which is the expensive way to discover weak spots. The cheaper discovery method is self-testing: drill 357 practice questions at iPassleader in timed mode until your scores clear the passing mark with room to spare, then register.