HomeBlogQualityWhat is Six Sigma Green Belt Certification? Roadmap to CLSSGB

What is Six Sigma Green Belt Certification? Roadmap to CLSSGB

12th Sep, 2023
view count loader
Read it in
8 Mins
In this article
    What is Six Sigma Green Belt Certification? Roadmap to CLSSGB

    In 1980, American businessman Bill Smith introduced the Six Sigma methodology, which is used throughout a variety of industries to solve problems within an organization and maximize profits. Process optimization helps companies improve their business processes, reduce delays, and ensures consistent revenue generation. The aim is to produce defect-free products that help companies maintain customer satisfaction while minimizing additional costs incurred due to delays. Six Sigma aims to have a defect rate of no more than 3.4 per million.

    The Certified Lean Six Sigma Green Belt (CLSSGM) exam is designed for individuals who lead or support improvement projects on a part-time basis. They understand how to interpret and use six sigma tools, as well as standard Lean principles. Six Sigma Lean Green Belts are important members of any team.  

    Candidates will gain a solid foundation in Lean Six Sigma as well as develop skills required to lead Six Sigma lean process improvement projects. It even helps candidates to work in teams led by Six Sigma Black Belts and assist their business in effectively implementing Lean Six Sigma.  

    Six Sigma is a process that is driven by people. The level of Six Sigma project performance tends to correspond to the level of commitment, expertise, and persistence of the team’s individual members. When reviewing the project roles, most of them consider the Black Belt roles to effectively employ the project. Green Belts, on the other hand, will play an important role in the process improvement to improve project performance. In this article, we will look at all information regarding the Six Sigma Green Belt certification.


    There are no particular requirements for an individual interested in pursuing the Six Sigma Green Belt Certification. However, following these guidelines will prove beneficial for your career in the long run, and help you understand the core concepts and applications of the Six Sigma system, and clear the Lean Six Sigma Green Belt exam easily.  

    • The candidate should have at least 3 years of working experience in any organization related to this field.
    • Any candidate can sit in the exam, however having a graduate degree would also be helpful, but it is not necessary for this exam.

    Apart from these, it is mandatory for any candidate to score the minimum set marks to get the certification.

    Candidates must pass the Certified Lean Six Sigma Green Belt Exam and achieve a minimum score of 70% in order to earn the professional designation of Certified Green Belt from the International Association for the Six Sigma Certification (IASSC).

    Exam Preparation  

    The Lean Six Sigma Green Belt Certification exam recommends but does not require candidates to acquire training from a qualified institution, a certified Lean Six Sigma trainer, or through an organization. Candidates for the exam need to have a degree prior to Lean Six Sigma work experience and project management experience, although this is not a requirement.  

    You may be able to determine if you are ready to sit for a proctored Certification Exam by taking the Knowledge Hut non-proctored (informal) Green Belt Evaluation Exam. Candidates can prepare for the exam by using study materials and books. These resources provide candidates with an idea of the type of questions that can be asked during the exam.

    Exam Details  

    The green belt examinations can be both online or offline phase, where the timings might be different. Let us first discuss the structure of the Six Sigma Green Belt exams:

    • Exam Type: Closed Book
    • Exam Pattern: Multiple-choice/true-false questions, descriptive questions, and an additional set of non-graded questions.  
    • Mode of Exam - Online and Proctored  
    • Number of Questions: 100
    • Duration: 3 hours
    • Conducted by: IASSC (International Association for Six Sigma Association)
    • Question Paper Pattern: Objective type

    Candidates are allowed to retake the exam. However, if they fail the second time as well, they must wait for a minimum of 14 days to retake the exam.  

    Once candidates pass the exam, the certification they receive is valid for three years. IASSC has a defined a set of It will even help candidates to earn 3 Credits and 50 learning hours towards MBA in Six Sigma.


    It is not necessary to have any previous experience to qualify for the Lean Six Sigma Green Belt Exam.  

    However, it is highly recommended to complete an online course in Six Sigma Green Belt. Unless you have been a long-time practitioner of Quality Management, a course is a great opportunity to learn the fundamentals and the key concepts, along with the terminology and measures of standards that comprise the Six Sigma process.

    Policies & Procedures

    1. The Identity Policy

    An official photo ID with a signature (e.g., a driver's license or passport) is required.

    You must bring an ID that matches the name you listed on your application.

    While you are taking the test at the testing center, all your personal items will be placed in your temporary locker. Your ID and locker key will be permitted to stay with you at all times.

    2. Time of Arrival

    Please arrive 30 minutes early so that check-in procedures can be completed. A late arrival will result in your inability to test and forfeiture of the exam fee.

    3. Policy for Calculators

    A non-programmable, standard, four-function calculator, or a non-programmable scientific calculator is allowed in the exam hall.
    They will accept any silent, battery-operated, hand-held calculator without programmable memory. Calculators with programming capabilities generally have graphing abilities, the ability to store text or alphanumeric data based on the user's input, and function buttons (Fn, F1, and F2, etc.).

    4. Referrals/Open Book Policy

    IASSC exams are typically closed-booked, and you are not permitted to carry any reference materials inside the examination center.  

    5. Prohibited Items

    In the exam area, the following are strictly prohibited: hand-stapled materials, blank writing tablets, or tablets containing blank pages, unbound tablets, unbound notes, slide charts, hand-held calculators, and wheel charts.  

    6. Absence, Cancellation, Rescheduling

    Become a project management expert with PRINCE2 Foundation Training. Start your journey to success now!

    Application Process  

    You can apply to take the Lean Six Sigma Green Belt exam on the official website of IASSC. Here is the detailed process for you to understand.

    1. Submit your application:

    Online applications are reviewed within one to two days, while hardcopy applications take three to five days. After this there will be the review process to ensure you meet all the exam requirements.

    Note: In case you are not eligible to sit in the exam, you will be refunded the application fees.

    2. Testing Options

    The IASSC Six Sigma Green Belt exams are available in an online, proctored format, as well as an offline format through Pearson-Vue testing centers. 

    a. On-Demand, Web-Based Certification Testing:

    On successfully submitting your application and purchasing the exam voucher, you will be eligible to take the on-demand, proctored exam at home or office at a time of your choosing.

    b. Pearson-Vue Professional Testing Centers:

    You can find a Pearson-Vue authorized testing center in your area through the IASSC website if you wish to take the Lean Six Sigma Green Belt exam in an examination hall.

    3. Schedule your Exam:

    During the testing window, you choose when you applied, and make an appointment for your exam.

    Here is the prototype of certification you will receive from the IASSC.

    A Green Belt of Quality Standards

    Training and certification for Certified Lean Six Sigma Green Belts in India help participants upskill their business efficiency with enhanced learning, performance, and satisfaction. KnowledgeHut Green Belt Certification training provides you with a variety of advantages including interactive instructor-led sessions, hands-on projects, and the course fee includes the exam fees.

    The certification courses help participants learn the appropriate skills for real-world situations, so they can solve pertinent management problems with ease.

    These programs employ goal-oriented, action-oriented strategies for training the candidates on how to solve common business challenges.

    Frequently Asked Questions (FAQs)

    1What does it mean to be a Six Sigma Green Belt?

    The objective of green belts is to improve the quality of processes. Through them, the Six Sigma concept and its application in the real world are more closely correlated. In processes, data inspection, or project management, Six Sigma Green Belt candidates play a vital role.

    2Is a green belt in Six Sigma worth it?

    You can advance your career and increase your salary with a Six Sigma Green Belt certification. In addition, the savings you achieve from your process improvements will benefit your company.

    3How long does it take to study for Six Sigma green belt?

    An online training program for the Lean Six Sigma Green Belt will take about 3 weeks to complete. Taking this certification slowly is recommended.

    During the course, the student should devote time to learning the subject and doing practice exercises. It may not take long to learn the techniques, but it does take some time and effort to visualize the applications.

    One needs to explore nuances to build expertise, so the skills learned in Green Belt are useful for a lifetime.

    4What is the purpose of Green Belt certification?

    In Lean Six Sigma, the green belt certification develops the infrastructure necessary to engage and hold accountable problem solvers responsible for improving processes and operations. It also fosters a culture of trust in which all employees are transparent so that the organization's success is driven by each employee. In addition to these benefits, the Lean Six Sigma green belt certification equips employees with the skills necessary to lead projects from the ground up, look for anomalies, train the team to implement solutions, and maintain a critical approach to ensure the processes are sustainable and maintain optimum performance.


    Shivender Sharma

    Blog Author

    Shivendra Sharma, an accomplished author of the international bestseller 'Being Yogi,' is a multifaceted professional. With an MBA in HR and a Lean Six Sigma Master Black Belt, he boasts 15 years of experience in business and digital transformation, strategy consulting, and process improvement. As a member of the Technical Committee of the International Association of Six Sigma Certification (IASSC), he has led multi-million dollar savings through organization-wide transformation projects. Shivendra's expertise lies in deploying Lean and Six Sigma tools across global stakeholders in EMEA, North America, and APAC, achieving remarkable business results. 

    Share This Article
    Ready to Master the Skills that Drive Your Career?

    Avail your free 1:1 mentorship session.

    Your Message (Optional)

    Upcoming Quality Management Batches & Dates

    NameDateFeeKnow more
    Course advisor icon
    Whatsapp/Chat icon