In today’s fast-paced business environment, organizations are constantly seeking ways to improve efficiency, reduce waste, and deliver value to customers. Lean Six Sigma (LSS) has emerged as a powerful methodology to achieve these goals. It combines the waste-reduction principles of Lean with the process-improvement tools of Six Sigma, making it a popular framework for continuous improvement in manufacturing, services, healthcare, IT, and other industries. If you’re considering Lean Six Sigma certification, you’ve likely encountered terms like Yellow Belt, Green Belt, Black Belt, and Master Black Belt. But which one is right for you? This guide will help you understand each certification level, its roles and responsibilities, and how to choose the best fit for your career aspirations.