Lean Yellow Belt

This belt level is suitable for anyone who wishes to learn the basic Lean principles. Lean Yellow Belts are experienced with the processes in daily practices and are therefore often involved in leading Kaizen projects or they are team member in a Lean Green Belts or Lean Black Belts projects.

This belt level contains only theoretical examination.

Exam Rules

  • Multiple choice format
  • 40 questions per paper
  • 25 marks or more required to pass
  • Open book exam
  • 60 minutes duration
  • The exam is available in English and in Dutch.
  • Online exam with an invigilator is possible.
  • Simple calculators are permitted for this exam

Lean Green Belt

Lean Green Belts are specialists in executing Lean projects. With the right combination of specialist expertise and structured Lean methodology, the Lean Green Belts are able to achieve significant improvements in performance and quality. A Lean Green Belt might work alone or as a junior project manager in a team or as a team member in larger Lean Black Belt project.The certification consists of a theoretical element and a practical element. The full Lean Green Belt certificate requires sufficient achievement in both theoretical and practical elements.

Education level required: Higher vocational education / university level

Theoretical Exam Criteria

  • 40 Multiple choice questions per paper
  • 25 marks or more required to pass
  • 120 minutes duration
  • Open book: only Lean reference book and training handouts (no eBook or Pdf’s)
  • Simple calculators are permitted for this exam
  • Online exam with an invigilator is possible
  • The exam is in English and Dutch

Practical Exam Criteria

  • The project should have a significant impact to the organization. This means that it has a financial impact of € 10,000 on an annual basis or another relevant CTQ (like lead time) has substantially been improved.(A 5S implementation or a single Kaizen project are not adequate for submission).
  • The project must follow the PDCA or DMAIC roadmap templates that can be downloaded from the LSSA website.
  • The project should be signed off by the Champion to declare that the project has been carried out professionally and that improvements are achieved and sustainable.
  • The language of the submitted project is English or Dutch.
  • Each submitted project shall only have one Project Manager.
  • The project must be submitted no later than three years after passing the theoretical examination.


Lean Black Belt

Lean Black Belts are experts in executing Lean projects. As a program manager they are responsible for managing complex breakthrough projects and supporting improvement teams with tools and techniques. They have both skills for applying analytical tools and skills for leading change.

Education level required: Higher vocational education / university level

The certification consists of a theoretical element and a practical element. The full Lean Expert certificate requires sufficient achievement in both theoretical and practical element.

Theoretical Exam Criteria

  • 40 Multiple choice questions per paper
  • 25 marks or more required to pass
  • 120 minutes duration
  • Open book: only Lean reference book and training handouts (no eBook or Pdf’s)
  • Simple calculators are permitted for this exam
  • The exam can be taken online and offline.
  • The exam is available in English and Dutch

Practical Exam Criteria

  • The project should have a significant impact to the organization. This means that it has a financial impact of € 20,000 on an annual basis or another relevant CTQ (like lead time) has substantially been improved.(A 5S implementation or a single Kaizen project are not adequate for submission).
  • The project must follow the PDCA or DMAIC roadmap templates that can be downloaded from the LSSA website.
  • The project should be signed off by the Champion to declare that the project has been carried out professionally and that improvements are achieved and sustainable.
  • The language of the submitted project is English or Dutch.
  • Each submitted project shall only have one Project Manager.
  • The project must be submitted no later than three years after passing the theoretical examination. 

Lean Six Sigma Yellow Belt

This belt level is suitable for anyone who wishes to learn the basic Lean Six Sigma principles and the most important Lean Six Sigma instruments. Yellow Belts are experienced with the processes in daily practices and are therefore often involved in leading Kaizen projects or they are team member in a Green or Black Belt projects.

This belt level contains only theoretical examination.

Theoretical Exam Criteria

  • 50 Multiple choice questions per paper
  • 32 marks or more required to pass 
  • Open book exam
  • 60 minutes duration
  • This exam is availble in English and Dutch
  • Calculators are not permitted for this exam
  • This exam can be taken online and offline 

Lean Six Sigma Orange Belt

Lean Six Sigma Orange Belts are executing Kaizen and Lean projects or less complicated Six Sigma projects in their immediate environment. Orange Belts are often team leaders or supervisors with in-depth knowledge of a process, product or equipment. Therefore they will also be valuable team members in Green or Black Belt projects.

This belt level contains only theorectical examination.

Exam Format

  • Multiple choice format
  • 50 questions per paper
  • 32 marks or more required to pass – 63%
  • Open book
  • 90 minutes duration
  • This exam is availble in English and Dutch
  • Calculators are not permitted for this exam

Lean Six Sigma Green Belt

Lean Six Sigma Green Belts are specialists in executing Lean Six Sigma projects. With the right combination of specialist expertise, statistical analysis and structured Lean Six Sigma methodology, the Green Belt is able to achieve significant improvements in performance and quality. A Green Belt might work alone or as a junior project manager in a team or as a team member in larger Black Belt project. Education level required: Higher vocational education / university level

The certification consists of a theoretical element and a practical element. The full Lean Six Sigma certificate requires sufficient achievement in both theoretical and practical element.

Theoretical Exam Format

  • Multiple choice format
  • 60 questions per paper
  • The exam is in English and Dutch
  • 38 marks or more required to pass – 63%
  • 180 minutes duration
  • Open book: only CTM reference book and training handouts (no eBook or Pdf’s)
  • A laptop with statistical software (e.g. Minitab) is permitted for some exam institutions.
  • Calculators are permitted for this exam.

Practical Exam Format

  • Two successful projects at Level-III or higher. 
  • Each project has resulted in significant savings (e.g. € 20,000.- on a yearly basis). 
  • Projects follow the DMAIC roadmap, and consists of a maximum of 25 pages. The LSSA review template can be downloaded at the LSSA website (www.lssa.eu). 
  • The candidate should complete the self-assessment criterion that are listed in the LSSA review template prior to submission. A detailed overview of the assessment criteria are described in Appendix A. 
  • Each project has been signed by the Champion and Financial controller, thereby declaring that the project is carried out professionally and that the savings have been achieved. 
  • Projects must be submitted no later than three years after theoretical examination.

Lean Six Sigma Black Belt

Lean Six Sigma Black Belts are experts in executing Lean Six Sigma projects. As a program manager they are responsible for managing complex breakthrough projects and supporting improvement teams with tools and techniques. They have both skills for applying analytical tools and skills for leading change.

Education level: Higher vocational education / university level and field experience

The certification consists of a theoretical element and a practical element. The full Lean Six Sigma certificate requires sufficient achievement in both theoretical and practical element.

Theoretical Exam Criteria

  • 60 multiple choice questions per paper
  • 38 marks or more required to pass
  • 180 minutes duration
  • Open book exam
  • A laptop with statistical software (e.g. Minitab) is permitted for some exam institutions
  • The exam is available in English and Dutch
  • Simple calculators are permitted for this exam
  • This exam can be taken online and offline 

Practical Exam Criteria

  • Lean Six Sigma Black Belts have to submit two practical projects that meet the following criteria: 
  • Two successful projects at Level-III or higher. One of the projects needs to be Level-IV or higher. 
  • Each project has resulted in significant savings (e.g. € 50,000.- on a yearly basis). 
  • Projects follow the DMAIC, DMADV or IDOV roadmap, and consists of a maximum of 25 pages. The LSSA review template can be downloaded at the LSSA website (www.lssa.eu). 
  • The candidate should complete the self-assessment criterion that are listed in the LSSA review template prior to submission. A detailed overview of the assessment criteria are described in Appendix A. 
  • Each project has been signed by the Champion and Financial controller, thereby declaring that the project is carried out professionally and that the savings have been achieved. 
  • Projects must be submitted no later than three years after theoretical examination.

Lean Six Sigma MBB

The Lean Six Sigma Master Black Belt is a process improvement expert. He is responsible for deploying the overall Lean Six Sigma program and performs the Lean Six Sigma training programs at all levels. The Master Black Belt will have at least 5 years of experience in executing projects himself. He will support management in selecting the breakthrough projects and the Green Belts and Black Belts in executing their projects.

Assessment criteria

  • Participating MBB training program
  • Presenting and defending one of your Black Belt projects
  • Developing training programs and training content
  • Providing training at Green Belt and Black Belt level
  • 5 years practical experience in Lean Six Sigma
  • Practical experience in coaching Champions, Green and Black Belts
  • Speaking in public (conferences) and/or publishing (articles, books)

Automotive Engineer

This scheme introduces the automotive industry as a whole, including aspects such as the history, characteristics, development stages, control in the production process, quality management and so on. This scheme consists of exams at Foundation and Practitioner levels. For this scheme, we work with exam institution ECQA.

This scheme contains only theoretical examination.

Assessment criteria

  • Multiple choice format
  • Online Exam via ECQA portal
  • The exam is in English and Dutch
  • 64 questions per exam
  • Closed-book exam
  • 120 minutes duration
  • To pass a learning element, at least 66% coverage of the answers provided for a learning element must be correct