White Belts have a basic awareness of Six Sigma concepts and terminology. They understand how Six Sigma works and can support improvement projects in a limited capacity.

Yellow Belts have a deeper understanding of Six Sigma techniques and can assist Green and Black Belts with data collection and analysis for improvement projects.

Green Belts lead improvement projects within their functional area while maintaining their regular job responsibilities. They apply statistical tools to analyze processes and implement solutions.

Black Belts are full-time process improvement experts who lead complex projects across multiple functional areas. They have advanced statistical knowledge and mentor Green Belts.

Master Black Belts are the highest technical experts in Six Sigma methodology. They train and mentor Black Belts, develop Six Sigma curriculum, and provide strategic guidance on complex projects.

Champions are senior executives who sponsor and drive Six Sigma initiatives throughout the organization. They provide resources, remove barriers, and align projects with business objectives.