Lean capability is measured by the level of martial arts belt achieved.
The Lean White Belt requires:
11 days of lean training by JCM Work Designs
22 topics with homework
Working as a lean team on projects from time-to-time
The Lean Green Belt requires:
The Lean White Belt (or equivalent)
5 additional days of training by JCM Work Designs
A Major Kaizen Lean Green Belt Project + Lean Training (fully documented)
Working ½ time on lean projects
The Lean Black Belt requires:
The Lean Green Belt (or equivalent)
Score of 700+ on the LBB Assessment
A Personal Portfolio of Lean project….. “proof”
Working full time on lean projects for 5+ years
Also see Lean White Belt, Lean Green Belt, and Lean Black Belt Certification