CMBB study guide
CMBB · Work through your exam, one topic at a time.
The ASQ Master Black Belt (MBB) certification, listed by ASQ as the Master Black Belt (CMBB), is the highest-level Six Sigma credential described on ASQ's certification page. ASQ defines a Certified Master Black Belt as a high-level Six Sigma expert who leads strategic improvement initiatives and mentors Black Belts and Green Belts, combining deep technical knowledge with leadership and coaching skills. It is aimed at candidates who are or have been employed as MBBs within their organization, or well-qualified certified Six Sigma Black Belts (CSSBB) with substantial experience in each major topic area of the portfolio. Certification is a two-stage process: a portfolio review by an independent panel of Master Black Belts, scored against three key performance indicators - Teaching, Coaching, Mentoring; Occupational Experience & Responsibility; and Technical Experience/Innovation - followed by the examination once the portfolio is approved. Topics on this exam: Teaching, Coaching, Mentoring, Occupational Experience & Responsibility, and Technical Experience/Innovation. The CMBB study guide has 3 sections and about 2,001 words.
01Teaching
Teaching in CMBB practice is about creating durable Lean Six Sigma capability, not delivering a polished lecture. The exam probes instructional design, delivery, assessment, and transfer: how a Master Black Belt prepares Green Belts, Black Belts, leaders, and process owners to use methods correctly and independently.
394 words, about 2 min02Coaching
Coaching tests structured, goal-focused conversations that improve a belt's or project leader's own capability. The exam distinguishes coaching from consulting: a coach builds the coachee's judgment and ownership rather than taking over the analysis or writing the deliverable.
388 words, about 2 min03Mentoring
Mentoring tests longer-term development of a person's career, judgment, and professional identity. It is distinct from coaching: coaching usually targets a defined performance goal or project, while mentoring addresses capability, career direction, networks, and professional standards over time.
1,219 words, about 6 min