Hello Pijush, thank you for your inquiry. You can obtain a Green Belt certification first. However, to qualify for our Black Belt course, your Green Belt certification must be from either IASSC (iassc.org) or ASQ (asq.org). Alternatively, if you don’t currently hold a Green Belt certification, you can enroll in our Public Lean Six Sigma Green Belt course. Completing this course will allow you to attend our Black Belt course directly without the need for prior Green Belt certification. This option is part of our Fast-Track program to Lean Six Sigma Black Belt certification. If your goal is to achieve Black Belt certification, you can find more details about our Fast-Track program here: https://sixsigmadsi.com/six-sigma-black-belt-fast-track-program/.