4.8 out of 5 based on 14151 reviews

4.8/5 from 14151 Reviews

CEPAS - Lean Six Sigma Training and Certification

Lean Six Sigma Green Belt ISO 18404 - Virtual Classroom

Course Overview

The Lean Six Sigma Green Belt training course has been developed for anyone who currently works in Project Management.

Lean Six Sigma offers the best of both the Lean and Six Sigma methodologies, helping to standardise work, eliminate waste and defects, improve customer satisfaction, and help the business become more profitable.

A certified Lean Six Sigma Green Belt is a Lean professional trained in Lean Six Sigma methodologies and tools, who can implement and sustain high-impact projects.

Our CEPAS accredited, Lean Six Sigma Green Belt classroom courses, are taught by experienced project management professionals. These trainers hold practical industry knowledge of utilising the Lean Six Sigma methodology, providing you with high-quality training. 

This Lean Six Sigma Green Belt training course will give you a high-quality training session spanning over 5-days. Our Green Belt courses also include the knowledge and methodologies taught in the Yellow Belt Training, making this course ideal for anyone looking to start from the basics and work their way up to the Green Belt level. Learn the tools and techniques required to lead small and medium-sized process improvement projects, as well as gaining the knowledge to train Yellow Belts in Lean Six Sigma. If you already have completed your Yellow and Green Belt qualifications, find out about our Black Belt training course.   

We're proud of our excellent rating on Trustpilot, with over 14,000 reviews from our past students.

Key features

  • Delivery Method: Virtual Classroom
  • Exams: Included with one free resit
  • Mock Exams Included
  • Duration: 5 Days
  • Certified & Experienced Trainers
  • Interest-free Payments
  • ISO 18404 Standard
  • Exam Pass Guarantee*
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Key features
  • Delivery Method: Virtual Classroom
  • Exams: Included with one free resit
  • Mock Exams Included
  • Duration: 5 Days
  • Certified & Experienced Trainers
  • Interest-free Payments
  • ISO 18404 Standard
  • Exam Pass Guarantee*

Why work with

"e-Careers came out top of our list of companies we looked at for having an efficient and cost effective delivery programme supported by their promise of a high pass rate. Their knowledgeable and calm approach during the discussions gave us confidence in their ability to take this training on. We have now put over 60 people through their Lean programme and their engagement, support and understanding of the subject has been unsurpassed. Feedback on the course content and their trainers has been excellent from participants and e-Careers continue to provide revision and exam support to our colleagues after the training."

simon bannaghan


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Course Details

Why study the CEPAS Lean Six Sigma Green Belt course with e-Careers?

The Lean Six Sigma Green Belt training course has been developed for anyone who currently works in Project Management.

Lean Six Sigma offers the best of both the Lean and Six Sigma methodologies: standardising work, eliminating waste and defects, improving customer satisfaction, and helping the business become more profitable.

Lean Six Sigma helps to improve productivity, reduce operational costs and increase overall customer satisfaction. 

Lean methodologies maximise customer value while minimising process wastage, enhancing customer satisfaction levels, and reducing wasted resources. Six Sigma methodologies provide the means to continually reduce process and product variation through a defined project approach.

When these two project management methodologies are combined, the benefits experienced are typically a reduction in costs, increase in staff morale, retained business, and an increase in customer satisfaction.

The international standard for both Lean and Six Sigma is ISO 18404:2015, which defines the management systems requirements for successfully managing and implementing Lean and Six Sigma. It also provides the necessary competencies for people applying and adopting the two approaches.

Being trained to the ISO 18404:2015 standard in Lean Six Sigma will show employers that you meet the highest standard in Lean Six Sigma.

Professionals with Lean Six Sigma certifications are in high demand by employers, because of their ability to successfully utilise problem-solving techniques to create business solutions while saving costs and ensuring higher customer satisfaction. Lean Six Sigma professionals also provide overall business efficiency improvements and quality control.

We have developed an expert team over the last 10 years since our inception. In that time, we have trained over 625,000 delegates globally, which has helped offer the highest quality training, and we have earned a 5-star rating on Trustpilot, from over 13,000 students. 

By refining our processes, partner relationships, and course materials, we can offer high-quality training solutions for our delegates. 

You will also benefit from:

  •    Exam Pass Guarantee*
  •    Fast-track your learning with our Virtual Classroom course.
  •    Enhance your career prospects.
  •    Learn from expert trainers with vast experience in this field.
  •    We offer interest-free payment options.

Read our Blog to discover the 3 ways Six Sigma will improve your life.

How does the Exam Pass Guarantee work?

We have found our Virtual Classroom training has provided higher pass rates, which has made us confident to offer an Exam Pass Guarantee, so you know we’ll support you until you are certified.

With our Exam Pass Guarantee, if you do not pass the exam after attending this training course with us, you will be eligible to attend the same training again for free.

All we ask is that you:

  •    Attend all class days and complete all assignments
  •    Take the exam within 30 days of completing your Virtual Classroom training
  •    Request your course re-enrolment within 30 days of the failed exam attempt

Please Note:

Students retaking the course are required to use any materials or books distributed to them in their original course session. Failure to provide these materials will result in the student being charged for replacement materials.

*Exam Pass Guarantee does not include the resit exam; this would need to be purchased at an additional cost.

Is the Lean Six Sigma Green Belt course suitable for me? 

The Lean Six Sigma Green Belt certificate training course is ideal for individuals looking to improve quality and processes within an organisation, and for those who currently undertake project management job roles.  


The focus of this course is the application of Lean Six Sigma DMAIC methods to real-life improvement projects within the delegate's organisation. There are two possible entry points to this course:

No previous training - this course fully caters for those wishing to go straight to Green Belt level. All the course materials taught at the Yellow Belt level are included in this Green Belt training course.

Previous Yellow Belt training – the Green Belt course covers all the material taught on the Yellow Belt course, serving as a refresher and then building on the Yellow Belt knowledge. 

What jobs can I apply for after my Lean Six Sigma Green Belt training? 

Once you have passed your Green Belt exam, you can apply for a range of jobs within different sectors.

Typical jobs at this level include: 

  •    Lean/Continuous Improvement Engineer (Manufacturing) - £30k 
  •    Quality & CI Engineer - £35k
  •    Product Manager - £42k
  •    Quality Manager - £43k 

(Source: Payscale) 

There is the opportunity for you to continue studying by enrolling onto the Black Belt course. With a Black Belt qualification, you can undertake senior job roles with a higher salary.

Lean Six Sigma Green Belt Syllabus

This 5-day course includes 2-days for Yellow Belt. If you have already completed your Yellow Belt training and passed your exam within the past 3-years, you have the option to attend just the last 3-days of this course. 

You will receive comprehensive training materials, exams, certificate, and we will register you onto the CEPAS public register of Lean Six Sigma certified professionals. 

Throughout our CEPAS Green Belt qualification, you’ll cover a wide range of topics over 5-days. 

Day 1 

  •    Lean Six Sigma Fundamentals
  •    What is Lean Six Sigma?
  •    Process Flow and Value Stream Mapping
  •    Muda, Mura and Muri – The three diseases of Processes
  •    The Seven Wastes
  •    Voice of the Customer (VoC) and CTQs
  •    Cost of Poor Quality
  •    Fundamentals Quiz

Day 2

  •    Define Phase
  •    Problem Definition
  •    Project Selection
  •    Business Case
  •    Project Charter
  •    Measure Phase
  •    Project Discovery
  •    Six Sigma Statistics
  •    Measurement System Analysis
  •    Process Capability

Day 3 

  •    Analyse Phase
  •    Inferential Statistics
  •    Correlation and Regression Analysis
  •    Analyse Phase Quiz

Day 4 

  •    Introduction to Hypothesis Testing
  •    Improve Phase
  •    Lean Tools for Improvement
  •    Implementation Strategies for Improvements
  •    Control Phase
  •    Statistical Process Control (SPC)
  •    Control Charts
  •    Improve and Control Phases Quiz
  •    Mock exams

Day 5 

  •    DoE (Design of Experiments)
  •    Revision and Rework of Mock Exam Questions
  •    Exam

On completion of the course, you will be able to: 

  •    Understand problem-solving and process improvement methods
  •    Plan and manage a real Lean Six Sigma DMAIC project
  •    Identify the elements of Cost of Poor quality and waste in a process
  •    Structure a measurement system and identify the appropriate metrics to support quantitative process improvement efforts
  •    Understand root cause analysis and value analysis methods Understand Process Improvement strategies
  •    Communicate with key stakeholders and drive change in the organisation
  •    Use many of the common process improvement tools. 
  •    Begin to develop the competencies required by ISO 18404:2015 through knowledge and practice of a series of technical tools

 What is Pareto Analysis and how is it used in Lean Six Sigma? 

Lean Six Sigma Green Belt Exam Details 

Your knowledge of Yellow and Green Belt skills, knowledge and competencies will be test and verified through these exams, as defined by the ISO 18404:2015. 

Yellow Belt

Exam format - Online, Proctored multiple-choice

Number of questions - 32.

Duration - 30 minutes. 

Pass mark - 24/32 (65%).  

Green Belt 

Exam format - Online, Proctored multiple-choice.

Number of questions - 40.

Duration - 40 minutes. 

Pass mark - 30/40 (65%).  

1 Free Examination Resit is included in the price. 

Provisional exam results are provided immediately, and official exam results are provided within 5 working days. 


  •    Photo ID (Passport, Driving Licence)
  •    Laptop or PC with internet connection, Webcam and Microphone
  •    You must be alone and not have any study materials around you (This will be checked by the examiner, before your exam starts)
  •    Exams can be taken 24/7, depending on available time slots. 

Scheduling for your exam can be booked up to 3-days after registering with ProctorU. Full instructions will be provided upon redeeming your exam voucher. 

We recommend taking the CEPAS Lean Six Sigma Green Belt Certification Exam within the first 6 weeks after your course completion date. Please note: the exam voucher fee is included in the classroom course fee.

Please note there is a Green Belt Annual Maintenance and Re-certification cost. For those in the UK, the Annual Maintenance cost is £36, and the Re-certification cost is £89, paid every 5 years. Fees vary by country.

About CEPAS, a Bureau Veritas company 

Bureau Veritas has been an international leader in testing, inspection, and certification services for almost 200 years! 

  •    They generate over €5 billion in revenue a year
  •    In 2016, Bureau Veritas acquired CEPAS to focus on the people certification market
  •    As an organisation, Bureau Veritas has over 74,000 employees in 1,400 offices and laboratories
  •    They are recognised in over 140 countries

About ISO 18404:2015 

Since its inception in 2015, ISO 18404:2015 has provided an internationally recognised benchmark for Lean Six Sigma methodologies. 

ISO 18404:2015 defines the approaches organisations are required to have employed to meet the required standards, and very few training organisations around the world are independently accredited to deliver Lean Six Sigma Certifications aligned to ISO18404:2015. 

e-Careers is the official training provider nominated by CEPAS, A Bureau Veritas Company to deliver ISO18404:2015 Lean Six Sigma Certifications to individuals across the globe. 

Why is there a need for an ISO standard for Lean Six Sigma? 

With no universal standard for Lean Six Sigma, training results varied widely between delegates, making it hard for employers to see the true value of an individual and their experience. As many training courses were uncertified or not certified to a high enough standard, ISO 18404:2015 was introduced to become a strict Lean Six Sigma standard.

What does an ISO 18404:2015 certification mean for me?

Being trained to the strict ISO 18404:2015 standard enables you to confidently explain to others that you meet the single standard of Lean Six Sigma, making you a valuable, highly trained Lean Six Sigma team member. ISO 18404:2015 certification holders are highly sought after, and your certificates will showcase your knowledge and skills to future employers. ISO 18404:2015 certificates are internationally recognised, and your credentials will be published on an online public register, accessible by employers and clients. 

Originally, ISO 18404:2015 was a complex and hard standard to achieve. CEPAS, Bureau Veritas and e-Careers has made it both simple and affordable now. 

By meeting the ISO 18404:2015 competencies help to make you valuable and employable throughout a wide range of managerial roles in this industry. 

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