The different levels of six sigma certification are a white belt, yellow belt, green belt, black belt, and master black belt.
White belt- White belt is the basic level of the six sigma course that gears knowledge toward lean six sigma that involves improvement, process, performance etc.
Yellow belt- Yellow belt signifies basic methodologies of the six sigma course that advances candidates' knowledge of important tools and techniques metrics.
Green belt- Green belt equips candidates' knowledge on how to prepare charts, and maps for six sigma within the organization.
Black belt- Black belt is the advanced level certification which allows candidates to perform multiple regression, business process optimization and experiments on factorial demands.