• Dec 7, 2026: Applications for the January 2027 CSSBB testing window are due December 7, 2026; the deadline for the March 2027 window is February 8, 2027. (ASQ)
• Jan 1, 2027 – Jan 31, 2027: The next open computer-based testing window for the ASQ Certified Six Sigma Black Belt (CSSBB) exam runs January 1–31, 2027, followed by March 1–31, 2027. (ASQ)

Facts verified Oct 19, 2026 against ASQ. Dates that have passed are removed automatically.

• The computer-delivered CSSBB exam has 165 multiple-choice questions, of which 150 are scored and 15 are unscored. (ASQ)
• Candidates need a scaled score of 550 out of 750 to pass an ASQ certification exam such as the CSSBB. (ASQ)
• There is no limit on CSSBB retakes, and for 2 years after a previous attempt candidates can reapply at ASQ's reduced retake rate. (ASQ)
• ASQ certifications, including the CSSBB, must be recertified every three years, or they lapse. (ASQ)
• To recertify the CSSBB, holders earn 18 recertification units within each three-year period or retake the exam at the end of that period. (ASQ)
• The CSSBB exam is delivered by computer through ASQ's testing partner Prometric, and a 150-question paper-based version in Mandarin is offered in some locations. (ASQ)
• CSSBB candidates who take the computer-based exam see their result as soon as they submit it, and ASQ emails confirmation within 3–5 business days. (ASQ)
• Applications for the January 2027 CSSBB testing window are due December 7, 2026; the deadline for the March 2027 window is February 8, 2027. (ASQ)

Facts verified Oct 19, 2026 against ASQ. Dates that have passed are removed automatically.