ASQ Certified Six Sigma Green Belt (CSSGB) Practice Test

ASQ requires candidates to have three years of full-time, paid work experience in one or more areas of the CSSGB Body of Knowledge. A waiver is available if you have completed a Six Sigma project, but verification is required. It is critical to review the latest requirements on the official ASQ website prior to application, as they are subject to change.

The exam is a closed-book, multiple-choice test consisting of 110 questions (100 scored, 10 unscored pretest questions) to be completed in 4 hours (5 hours for non-English exams). The passing score is determined through a psychometric process and is not a fixed percentage; it typically corresponds to demonstrating minimum competency across the Body of Knowledge. The questions are weighted across the DMAIC phases as outlined in the official certification blueprint.

A Green Belt typically works on improvement projects part-time or leads smaller-scale projects under the guidance of a Black Belt. A Black Belt is a full-time change agent who leads complex, high-impact projects, mentors Green Belts, and possesses a deeper mastery of advanced statistical methods and organizational change management. The CSSGB is often a stepping stone to the CSSBB certification.

Effective preparation involves a multi-faceted approach: formal training through an ASQ-endorsed or reputable provider, thorough study of the official Body of Knowledge and recommended references, hands-on participation in a Six Sigma project, and consistent practice with sample exam questions. Joining a local ASQ section or study group can also provide valuable peer support and insights.

The ASQ CSSGB certification is valid for three years. To recertify, you must earn 18 recertification units (RUs) within that period through activities such as professional development, work experience, publishing, teaching, or volunteering in the quality field. This ensures certified professionals remain current with evolving methodologies and industry practices.