Every participant in the Lean training courses has the possibility to be certified by us. You do this by demonstrating that you are able to improve processes with the help of Lean principles and methods by carrying out a project and taking an exam.

Registration for the open certification is only valid for participants in the Lean Green Belt, Lean Black Belt and Lean Master Black Belt courses.

About our certifications

What does a certification look like?

Yellow Belt: the certification consists of an online test with multiple choice questions about the theory covered during the course and studied by you. If you pass the test with a minimum of 5.5 on a scale of 10, you will receive a Lean Yellow Belt LBC certificate.

Green Belt: the certification consists of an online test with 20 multiple choice and 2 open questions about the theory covered during the course and studied by you. You get 30 minutes to answer the questions and it is not an open book test. You also have to carry out one or two improvement projects and present them. If you achieve a sufficient score (at least 5.5 on a scale of 10) for both parts, you will receive a Lean Green Belt LFC certificate.

Black Belt LPC: the certification consists of taking an online test on the theory covered during the course and studied by you. This test consists of 12 open questions, you will have 60 minutes to answer them and it is not an open book test. The tested subjects concern the material that has been dealt with during the training days and the distributed literature (articles and books). The second part is the presentation of your project in A3 format. If you achieve a sufficient score (at least 5.5 on a scale of 10) for both parts, you will receive a Lean Black Belt LPC certificate.

Master Black Belt LPDP: the certification consists of taking a written exam about the theory covered and studied during the course. This test consists of 10 open questions, you have 90 minutes to answer them and it is not an open book test. The tested subjects concern the material that has been dealt with during the training days and the distributed literature (articles and books). The second part is a company visit (Gemba Walk) in which you show how your organization is managed. If you achieve a sufficient score (at least 5,5 on a scale of 10) for both parts, you will receive a certificate Lean Master Black Belt LPDP.

During the training days you will receive more information about certification, sample exam questions and there is ample opportunity to spar with the trainer about the criteria that your project must meet.

Certification is currently only possible online (with the exception of the Master Black Belt).

When did I pass?
A certification always consists of a theoretical and a practical part. For both parts you need to score at least a 5,5. In addition, the weighting is 50:50. So if you score a 7 for your theory and a 9 for your practical assignment, your final mark will be an 8. If, in the opinion of the examiner (always an experienced senior trainer / advisor) you meet the requirements, then you have passed without further ado (with the exception of the Master Black Belt, here there are always 2 examiners present). If you do not meet the requirements or if the examiner has doubts about certain parts, it is up to the examination board to assess and make a decision. If this leads to a "fail" assessment, you are entitled to a resit. In addition, the examiner will also indicate what is needed in order to still meet the requirements. So again, you don't necessarily fail without an end-to-end value stream analysis, but you do have a lot more to explain! Fortunately, we see that the vast majority of candidates pass at once. Only a small minority needs a resit. This should give you confidence: if you take Lean seriously, the chances are high that you will succeed!

Can I get coaching on my A3?
Usually there is room for this during or at the end of the training days. It is possible to discuss your A3 with an LMI advisor at one of our monthly sensei sessions beforehand. This never replaces certification, nor does it attempt to do so. The only thing we will do then is to coach you further and help you on your way in your project and for example prevent you from the biggest pitfalls (for example having only the Plan phase in your A3).

How does the registration work?
If you have studied the theory well and your project has gone smoothly, you are ready to certify. You can register for certification online at this webpage. Every month we have a fixed certification day scheduled. Make sure you register in time, we want to avoid disappointment!

Are there any costs associated with certification?
No, the certification is included in the price of the training, including free retakes (max 3 times) if needed.

Within how many months after completion of my training can I certify?
That is up to you. After following the course you are free to decide whether you want to go for certification and if so, how soon. Certification consists of a theoretical and a practical part. Because you already had the theory part during the course, we advise you to complete your practical assignment within six months after completing the course and get certified.

How long will my certificate be valid?
Your certificate remains valid, there is no end date to the validity of the certificate.

Are LMI's training courses accredited?
The dictionary definition of accreditation: "The official recognition that an institution has met standards which make it eligible for membership of an association or society of equals". This system gives the customer a simple tool to determine the reliability of the service or product delivered. Because we are part of the Lean Global Network, founded by the founders of Lean Womack & Jones, we are accredited. You can't get any closer to the source! Our Master Black Belt Lean Postgraduate Program is accredited by the European Union, and the Universitat Polytechnic de Catalyuna (UPC) in Barcelona. The activities we perform with Nyenrode are accredited by EQUIS (EFMD) and the Ministry of Education.