https://scrummaster.jp/certified-less-basics-clb-course-description-jp/
認定LeSS基礎研修（CLB）(Certified LeSS Basics) - スクラムマスター
certified less basics
https://agilemania.com/certified-less-basics-clb-certification-training
Certified LeSS Basics (CLB) Certification Training - Agilemania
Certified LeSS Basics is an interactive training course introducing the LeSS Framework, principles, rules, and guides for effective large-scale Scrum adoption.
certified less basicsclb