Clearing Up the Confusion — Why ASQ’s Certification Covers It All

If you’ve been exploring process improvement certifications, you’ve probably come across two terms: Six Sigma and Lean Six Sigma. Many wonder, “Are they different? Which one should I pursue?” At 3FOLD, we often get this question—and here’s the straightforward answer from the experts at ASQ®  (American Society for Quality):

There is no difference between Six Sigma and Lean Six Sigma when it comes to ASQ certification.

Why is this important?

Many training providers use the term “Lean Six Sigma” to emphasize a combined focus on reducing waste (Lean) and minimizing variation (Six Sigma). But when it comes to ASQ’s Six Sigma certifications, including the Green Belt, the curriculum already integrates both Lean and Six Sigma principles into one comprehensive Body of Knowledge (BoK).

This means:

• • You don’t have to choose between Lean or Six Sigma if you want the gold-standard ASQ certification.

ASQ’s Six Sigma Green Belt training covers Lean tools like 5S, value stream mapping, Just-In-Time (JIT), and waste elimination techniques alongside traditional Six Sigma methods.

What does the ASQ Six Sigma Body of Knowledge include?

The ASQ Six Sigma Green Belt BoK blends the best of both worlds, ensuring you gain skills in:

• • DMAIC methodology (Define, Measure, Analyze, Improve, Control)
    
  • Statistical analysis and data-driven problem solving
  • Lean concepts to eliminate waste and optimize flow
  • Tools like 5S, Kanban, Takt time, SMED, Jidoka, Andon, and Gemba walks
  • Project management and team leadership techniques

Why does this matter for professionals?

Understanding that ASQ’s Six Sigma certification is truly Lean Six Sigma integrated means:

• • You get a well-rounded skill set applicable to diverse industries—from manufacturing and healthcare to IT and services.
    
  • You’re equipped to lead both quality improvement and operational excellence initiatives.

Your certification holds global recognition and credibility as it aligns with the latest industry best practices.

Choosing the right certification partner

When you train with 3FOLD, you’re getting a program that follows the official ASQ BoK. Our virtual live classes ensure you learn the full spectrum of Six Sigma and Lean tools so you can confidently tackle real-world challenges.

If you want to earn an internationally recognized Six Sigma Green Belt certification that truly covers Lean Six Sigma, ASQ’s program (and our 3FOLD training) is the perfect choice.

Download ASQ  BoK Six SIgma Green Belt | Ready to get started with your ASQ Six Sigma Green Belt certification?