National Credential
Credential: Certified Lean Six Sigma Black Belt (ICBB)
Credentialing Agency: International Association for Six Sigma Certification (IASSC)

The International Association for Six Sigma Certification (IASSC) Certified Lean Six Sigma Black Belt (ICBB) is a professional who is well versed in the Lean Six Sigma Methodology, who leads complex improvement projects, typically in a full-time capacity. A Lean Six Sigma Black Belt possesses a thorough understanding of all aspects of the Lean Six Sigma Method including a high-level of competence in the subject matters contained within the phases of Define, Measure, Analyze, Improve and Control (DMAIC) as defined by the IASSC Lean Six Sigma Black Belt Body of Knowledge. A Lean Six Sigma Black Belt understands how to implement, perform, interpret and apply Lean Six Sigma at an advanced level of proficiency. There are no prerequisites required in order to sit for the IASSC Certified Lean Six Sigma Black Belt Exam.

More information can be found on the certifying agency's website.

Renewal Period: 3 years

Certified Lean Six Sigma Black Belt (ICBB)

The following Army Occupations provide training and/or experience that contributes to attaining this credential:

Personnel Category Occupation Occupation Type Related As Promotion Points Skill Level Star Proponent Funded Gap Analysis
Enlisted 1Y Black Belt In Lean Six Sigma (LSS) ASI most          Gap Analysis
Enlisted 1Z Master Black Belt In Lean Six Sigma (LSS) ASI most          
Enlisted Manager MOS some          

Army Table Legend


Related As

The military occupations shown in this table are related to this credential in one of four ways: Most, Some, or Other.

Most: This credential is directly related to most of the major duties associated with the military occupation (at least 80%). Note that the credential may require additional education, training or experience before you are eligible for it.

Some: This credential is related to some tasks associated with the duties of the military occupation (related 80% to at least one or more critical tasks but less than 80% of all of the entire military occupation). Note that the credential may require additional education, training or experience before you are eligible for it.

Other: This credential is related to this military occupation, but is more advanced or specialized and therefore will likely require additional education, training, or experience.

Promotion Points Promotion Points icon

This credential has been approved for promotion points for this MOS towards promotion to Sergeant and Staff Sergeant. Clicking the Promotion Points icon will open a link to the promotion points fact sheet.

Skill Level Designation

Skill Level I: This skill level consists of all Soldiers in the ranks of Private (pay grade E-1) up to Specialist (pay grade E-4). Time in Service (TIS) is generally between initial entry and four Years of Service (YOS). This skill level is Entry-level positions requiring performance of tasks under direct supervision.

Institutional training:

  • Structured Self-Development (SSD) level I
  • Basic Leader Course (BLC)

Skill Level II: This skill level is obtained when promoted to Sergeant (paygrade E-5). TIS is generally between 4-8 YOS. Positions requiring performance of more difficult tasks under general supervision; and in some instances, involving supervision of Soldiers in SL1.

Institutional training:

  • Structured Self-Development (SSD) level II
  • Advance Leader Course (ALC)

Skill Level III: This skill level is obtained when promoted to Staff Sergeant (paygrade E-6). TIS is generally between 8-12 YOS. Positions requiring performance of still more difficult tasks and involving first line supervision of Soldiers in SL1 & SL2.

Institutional training:

  • Senior Leader Course (SLC)
  • Structured Self-Development (SSD) level III

Skill level IV: This skill level is obtained when promoted to the rank of Sergeant First Class (paygrade E-7). TIS is generally between 12-18 YOS. Positions requiring relatively detailed knowledge of all tasks specified for a given MOS, normally involving first-line supervision of Soldiers in SLs 1, 2, and 3, and involving managerial duties.

Institutional training:

  • Master Leader Course (MLC)
  • Structured Self-Development (SSD) level IV
  • Senior Enlisted Joint Professional Military Education (SEJPME) I Course

Skill level V: This skill level is obtained when promoted to the rank of Master Sergeant (paygrade E-8). TIS is generally between 18-22 YOS. Positions requiring direct and indirect leadership roles with expertise in company and battalion-level operations and competency across a given CMF, serving as members of a staff at every level in the Army, with a full understanding of the allocation of resources and their utilization in order to accomplish Army functions and missions.

Institutional training:

  • United States Army Sergeants Major Academy (USASMA)
  • Structured Self-Development (SSD) level V

Skill level VI: This skill level is obtained when promoted to the rank of Sergeants Major (paygrade E-9). TIS is generally between 22-30 YOS. Positions requiring organizational leadership roles with multi-dimensional expertise in units and teams on division, corps, and Army staffs, integrated with Joint, Interagency, Intergovernmental, and Multinational (JIIM) partners with a full understanding of the Force Generation process, operations at all echelons, and how the Army runs.

Star Credential Star icon

Star credentials are MOS enhancing, as designated by the Proponent. MOS enhancing credentials are directly related to an MOS or ASI, are taught either partially or completely as part of a Program of Instruction (POI), and improve the MOS technical proficiency.

Proponent Funded Funded icon

This icon indicates credentials which Soldiers may have funded through their MOS proponent. Some proponents offer credentialing opportunities in conjunction with military training and/or as part of MOS development beyond the training base.

Gap Analysis Has Analysis icon

A detailed analysis comparing the credential requirements to the military occupation has been completed. Click on the gap analysis icon to view the analysis page.

Certified Lean Six Sigma Black Belt (ICBB)

Eligibility Requirements ()

Note: This credential may have multiple options for becoming eligible. Listed below are the minimum requirements based on the minimum degree required. To view other options, see the Eligibility tab.

  • Credential Prerequisite
  • Experience
  • Education
  • Training
  • Membership
  • Other
  • Fee

Exam Requirements ()

  • Written Exam
  • Oral Exam
  • Practical Exam
  • Performance Assessment

Renewal Period: 3 years

  • Continuing Education
  • Exam
  • Continuing Education OR Exam
  • Fee
  • Other

International Association for Six Sigma Certification (IASSC)
2415 East Camelback Road, Suite 700
Phoenix, AZ  85016
Phone: (602) 734-0561
Contact Page

Certified Lean Six Sigma Black Belt (ICBB)

  • Define Phase
    • The Basics of Six Sigma
      • Meanings of Six Sigma
      • General History of Six Sigma & Continuous Improvement
      • Deliverables of a Lean Six Sigma Project
      • The Problem Solving Strategy Y = f(x)
      • Voice of the Customer, Business and Employee
      • Six Sigma Roles & Responsibilities
    • The Fundamentals of Six Sigma
      • Defining a Process
      • Critical to Quality Characteristics (CTQ’s)
      • Cost of Poor Quality (COPQ)
      • Pareto Analysis (80:20 rule)
      • Basic Six Sigma Metrics
    • Selecting Lean Six Sigma Projects
      • Building a Business Case & Project Charter
      • Developing Project Metrics
      • Financial Evaluation & Benefits Capture
    • The Lean Enterprise
      • Understanding Lean
      • The History of Lean
      • Lean & Six Sigma
      • The Seven Elements of Waste
      • 5S
  • Measure Phase
    • Process Definition
      • Cause & Effect / Fishbone Diagrams
      • Process Mapping, SIPOC, Value Stream Map
      • X-Y Diagram
      • Failure Modes & Effects Analysis (FMEA)
    • Six Sigma Statistics
      • Basic Statistics
      • Descriptive Statistics
      • Normal Distributions & Normality
      • Graphical Analysis
    • Measurement System Analysis
      • Precision & Accuracy
      • Bias, Linearity & Stability
      • Gage Repeatability & Reproducibility
      • Variable & Attribute MSA
    • Process Capability
      • Capability Analysis
      • Concept of Stability
      • Attribute & Discrete Capability
      • Monitoring Techniques
  • Analyze Phase
    • Patterns of Variation
      • Multi-Vari Analysis
      • Classes of Distributions
    • Inferential Statistics
      • Understanding Inference
      • Sampling Techniques & Uses
      • Central Limit Theorem
    • Hypothesis Testing
      • General Concepts & Goals of Hypothesis Testing
      • Significance; Practical vs. Statistical
      • Risk; Alpha & Beta
      • Types of Hypothesis Test
    • Hypothesis Testing with Normal Data
      • 1 & 2 sample t-tests
      • 1 sample variance
      • One Way ANOVA
    • Hypothesis Testing with Non-Normal Data
      • Mann-Whitney
      • Kruskal-Wallis
      • Mood’s Median
      • Friedman
      • 1 Sample Sign
      • 1 Sample Wilcoxon
      • One and Two Sample Proportion
      • Chi-Squared (Contingency Tables)
  • Improve Phase
    • Simple Linear Regression
      • Correlation
      • Regression Equations
      • Residuals Analysis
    • Multiple Regression Analysis
      • Non- Linear Regression
      • Multiple Linear Regression
      • Confidence & Prediction Intervals
      • Residuals Analysis
      • Data Transformation, Box Cox
    • Designed Experiments
      • Experiment Objectives
      • Experimental Methods
      • Experiment Design Considerations
    • Full Factorial Experiments
      • 2k Full Factorial Designs
      • Linear & Quadratic Mathematical Models
      • Balanced & Orthogonal Designs
      • Fit, Diagnose Model and Center Points
    • Fractional Factorial Experiments
      • Designs
      • Confounding Effects
      • Experimental Resolution
  • Control Phase
    • Lean Controls
      • Control Methods for 5S
      • Kanban
      • Poka-Yoke (Mistake Proofing)
    • Statistical Process Control (SPC)
      • Data Collection for SPC
      • I-MR Chart
      • Xbar-R Chart
      • U Chart
      • P Chart
      • NP Chart
      • Xbar-S Chart
      • CumSum Chart
      • EWMA Chart
      • Control Methods
      • Control Chart Anatomy
      • Subgroups, Impact of Variation, Frequency of Sampling
      • Center Line & Control Limit Calculations
    • Six Sigma Control Plans
      • Cost Benefit Analysis
      • Elements of the Control Plan
      • Elements of the Response Plan

There are a number of resources available to help you prepare for the Certified Lean Six Sigma Black Belt (ICBB) examination:

An additional resource is Safari Books Online, a searchable digital library that provides online access to thousands of books, training videos and conference sessions. See the Educational Resources page here on COOL to learn how to get free access.

Testing for this credential is handled by Pearson VUE. The test centers are located in the U.S. They also have some test centers on military bases.

To find out more, use the following links on the Pearson VUE website:

For more information on the International Association for Six Sigma Certification (IASSC) testing process, visit the agency website.

Certified Lean Six Sigma Black Belt (ICBB)

Renewal Period: 3 years

The Certified Lean Six Sigma Black Belt (ICBB) credential has the following recertification information:

  • As of March 1, 2017, candidates must pass a recertification exam to maintain a current status of certification.  

    IASSC Recertification Black Belt Exam is a 75 question, closed book, proctored exam with a 2 hour allotted time. The Exam contains approximately 15 multiple-choice and true/false questions from each major section of the IASSC Lean Six Sigma Black Belt Body of Knowledge. In order to successfully achieve recertification, professionals must achieve a minimum score point equivalency of 70%.

Certified Lean Six Sigma Black Belt (ICBB)

Additional considerations for the Certified Lean Six Sigma Black Belt (ICBB) include:

  • There are no prerequisites required in order to sit for the IASSC Certified Lean Six Sigma Black Belt Exam. For those who wish to sit for the exam it is recommended, but not required, that Lean Six Sigma training is obtained through a qualified institution, Lean Six Sigma trainer or corporate program. It is also recommended, although not required, that those sitting for the exam have some degree of real-world Lean Six Sigma work experience and project application experience.