ASQ (American Society for Quality)

Six Sigma Green Belt

ASQ Certified Six Sigma Green Belt (CSSGB)

ASQ's mid-level process improvement credential for professionals who support or lead smaller Six Sigma projects within a function. Validates command of the DMAIC methodology and statistical problem-solving tools.

$4834 hours 18 minutes exam time

What's on the exam

2022 CSSGB Body of Knowledge

Six Sigma and the Organization (Overview)

11 questions

Six Sigma fundamentals and goals · Lean principles · Project selection and metrics · Organizational drivers · Roles and responsibilities

Define Phase

20 questions

Project identification and charter · Voice of the customer · Project management basics · Stakeholder and team tools · Business and project metrics

Measure Phase

20 questions

Process analysis and documentation · Probability and statistics · Data collection and types · Measurement system analysis · Process capability

Analyze Phase

18 questions

Exploratory data analysis · Hypothesis testing · Correlation and regression · Root cause analysis · Multi-vari studies

Improve Phase

16 questions

Design of experiments (DOE) · Lean improvement methods · Kaizen and waste reduction · Implementation planning · Solution selection

Control Phase

15 questions

Statistical process control (SPC) · Control plans · Sustaining improvements · Visual management · Standard work and documentation

Frequently asked questions

How much does the Six Sigma Green Belt cost?

The Six Sigma Green Belt costs $483. Non-member rate; ASQ members save US$100 (US$383). Retake fee is US$283.

How long is the Six Sigma Green Belt and how many questions does it have?

110 questions (100 scored) on CBT; 100 on paper — 4 hours 18 minutes exam time.

What do you need to pass the Six Sigma Green Belt?

Scaled score of 550 of 750 (no published percentage).

Can you retake the Six Sigma Green Belt?

Allowed in a later testing window with a reduced retake fee.

What is the best way to study for the Six Sigma Green Belt?

Study the official blueprint, not random material: the exam is weighted by domain (Six Sigma and the Organization (Overview) 11 questions, Define Phase 20 questions, Measure Phase 20 questions, Analyze Phase 18 questions, Improve Phase 16 questions, Control Phase 15 questions). Spaced-repetition flashcards built domain-by-domain against that blueprint are the most time-efficient way to cover everything the exam tests.

Program in development

We're building a blueprint-complete program for this exam. Meanwhile, explore live programs across 11 exam.

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