ASQ Six Sigma Black Belt (CSSBB)
ASQ (American Society for Quality)
Complete guide to passing the ASQ Six Sigma Black Belt (CSSBB) exam on your first attempt.
$438 (members) / $538 (non-members)
~40%
3 years (recertification with 18 RUs)
Global
ASQ (American Society for Quality)
$95k-$150k
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Complete Overview
The ASQ Certified Six Sigma Black Belt (CSSBB) is an ANAB-accredited certification for professionals who lead process improvement projects using the DMAIC model, and ASQ charges $585 for the exam with a $100 discount for ASQ members, making it $485 for members. It is aimed at practitioners who already run improvement projects, because ASQ requires completed project work before you can sit it.
The eligibility rule is the first hurdle and it is not a paperwork formality. ASQ requires either two completed Six Sigma projects with signed affidavits, or one completed project with a signed affidavit plus three years of on-the-job experience in one or more areas of the CSSBB Body of Knowledge. The affidavit form is downloadable from ASQ and has to be signed off, so candidates who have only taken a training course cannot apply.
The computer-delivered exam is one part, 165 questions, English only. Of those, 150 are scored and 15 are unscored. Total appointment time is four and a half hours and exam time is 4 hours and 18 minutes. A paper and pencil version exists as a 150-question, four-hour exam offered in Mandarin in certain locations. The passing standard is a scaled score of 550 out of a possible 750, and ASQ scores criterion-referenced rather than ranking candidates against each other, which is why it does not release your scaled score when you pass.
Every ASQ exam is open book. You bring your own reference materials, they must be permanently bound, and the Test Center Administrator inspects them before you enter the room. Ring binders, spiral binders and screw posts count as bound. Hand-stapled documents, unbound notes and blank writing tablets are prohibited. Post-its are allowed as book tabs only and must be attached before you arrive.
The Body of Knowledge splits 150 scored questions across nine areas. Measure carries 25 questions, Analyze 22, Improve 21, Define 20, Control 17, Team Management 15, Organization-Wide Planning and Deployment 12, Organizational Process Management and Measures 12, and Design for Six Sigma frameworks 6. The five DMAIC phases together account for 105 of the 150 scored questions, so statistics and tool application dominate the paper.
ASQ publishes pass rates by exam and lists CSSBB at 76 percent for 2022, 75 percent for 2023 and 73 percent for 2024. Those figures describe a population that has already cleared the project affidavit requirement, so the eligibility rule does more filtering than the exam does. Exams are delivered through Prometric in defined testing windows with an application deadline several weeks before the window opens, and remote proctored delivery is available. Certification lasts three years, and you recertify by submitting 18 recertification units through the online journal or by retaking the exam.
Why Get ASQ Six Sigma Black Belt (CSSBB) Certified?
CSSBB is accredited by the ANSI National Accreditation Board under ISO 17024, which means an independent body audits how ASQ develops and maintains the exam. Most Six Sigma belts sold by training companies carry no such accreditation.
ASQ requires proof of completed project work through signed affidavits, so the credential evidences delivery rather than course attendance. That is the difference employers screen for when a job posting says Black Belt required.
ASQ publishes the pass rate, which most certifying bodies do not: 76 percent in 2022, 75 percent in 2023 and 73 percent in 2024. It also lists every current holder in a public Certification Verification Registry, so an employer can confirm the credential without asking you for a certificate.
The exam is open book, so preparation builds a reference set rather than a memory dump. ASQ states its CSSBB Handbook can be used during the exam, and the tabbing work you do to make it navigable under time pressure survives the exam.
The Body of Knowledge is published with exact question counts per area, from 25 in Measure down to 6 in Design for Six Sigma, so you can allocate study hours against the real scoring weight.
ASQ gives you a subtopic-level breakdown of correct and incorrect answers if you fail, and you can retake at a reduced $385 rate for two years from your previous attempt with no limit on the number of attempts.
Recertification is 18 recertification units every three years, and full-time employment in a Body of Knowledge area alone earns 3.6 of them per year. Hold several ASQ certifications and you can synchronise them onto a single journal submission, 18 units total for all of them, at $140 for members rather than a fee each.
Exam Format & Structure
Duration
Computer delivered: total appointment time four and a half hours, with exam time of 4 hours and 18 minutes. Paper and pencil: four hours.
Questions
165 questions computer delivered, of which 150 are scored and 15 are unscored. The paper and pencil version is 150 questions.
Passing Score
550 points out of a possible 750 on ASQ's scaled score. ASQ uses criterion-referenced scoring and does not report scaled scores to candidates who pass.
Question Types
- Multiple choice, measuring comprehension of the Body of Knowledge
- Questions are written to a stated maximum cognitive level per topic, from Understand through Apply, Analyze and Evaluate
Delivery Method
Computer-based testing through Prometric in defined testing windows, including remote proctored online delivery. A paper and pencil version is offered in certain locations.
Exam Domains & Topics
Twelve of the 150 scored questions. Covers the fundamentals and goals of Six Sigma and lean, the relationships between business systems, processes and stakeholders, and strategic planning and deployment of initiatives. The leadership subsection covers the roles of executives, champions, sponsors, process owners, Master Black Belts, Black Belts and Green Belts, plus organizational roadblocks and change management.
Key Topics to Master:
- Fundamentals and goals of Six Sigma and lean methodologies and their complementary relationship
- Project selection criteria across Six Sigma, lean and other continuous improvement methods
- Relationships among business systems, processes and internal and external stakeholders
- Strategic planning and deployment for initiatives, including risk and contingency planning
- Roles and responsibilities of executive leadership, champions, sponsors, process owners, Master Black Belts, Black Belts and Green Belts
- Organizational roadblocks and common causes of Six Sigma failure
- Change management: stakeholder analysis, readiness assessment and communication plans
Twelve scored questions on how improvement work connects to the business. Covers the impact of projects on customers, suppliers and other stakeholders, the types of benchmarking and how to set measures and goals from benchmarking activity, and business measures split between performance measures and financial measures.
Key Topics to Master:
- Impact of Six Sigma projects on customers, suppliers and other stakeholders
- Benchmarking types: best practices, competitive, collaborative and breakthrough
- Selecting measures and performance goals from benchmarking results
- Balanced scorecard, key performance indicators, customer loyalty metrics
- Leading and lagging indicators and the line of sight to organizational strategy
- Financial measures: revenue growth, market share, margin, net present value, return on investment, cost benefit analysis
- Hard cost measures from profit and loss statements versus soft cost avoidance and reduction
Fifteen scored questions across four subsections: team formation, team facilitation, team dynamics and team training. This is the section technically strong candidates skim and then lose marks on, because the questions are written at Apply and Evaluate level rather than recall, asking you to choose an intervention for a described group problem.
Key Topics to Master:
- Team types and constraints, including virtual, cross-functional and self-directed teams
- Team roles and responsibilities for leader, facilitator, coach and individual member
- Team member selection criteria and team success factors
- Facilitation techniques and situational leadership styles: direct, coach, support, delegate
- Group behaviours and conflict resolution for dominant and reluctant participants, groupthink, rushing to finish and digressions
- Team training needs assessment and delivery
- Team stages, ground rules and timelines
Twenty scored questions covering voice of the customer, the business case and project charter, project management tools and analytical tools. The charter subsection is written at Evaluate level: you are asked to judge a problem statement against baseline performance and improvement goals rather than simply recognise a good one.
Key Topics to Master:
- Customer identification and segmentation, internal versus external customers
- Voice of the customer data collection through surveys, focus groups, interviews and observation, and reviewing methods for validity and reliability
- Customer requirement tools: critical-to-X, CTQ tree, quality function deployment, SIPOC and the Kano model
- Business case justification, problem statement, project scope and SMART goals
- Project performance measurements across cost, revenue, delivery, schedule and customer satisfaction
- Project charter review with stakeholders
- Project management tools: Gantt charts, toll-gate reviews, work breakdown structure, RACI model
- Analytical tools: affinity diagrams, tree diagrams, matrix diagrams, prioritization matrices, activity network diagrams, process decision program chart, interrelationship digraph
Twenty-five scored questions, the largest single area. It runs from process characteristics and data collection through measurement systems analysis, basic statistics, probability and process capability. The capability subsection is written at Evaluate level and asks about short-term versus long-term data assumptions, which is where careless candidates lose several marks.
Key Topics to Master:
- Process characteristics: input and output variables, process flow metrics, process analysis tools
- Data collection: data types, measurement scales, sampling methods, data collection plans
- Measurement systems analysis: gauge repeatability and reproducibility, bias, linearity, stability, resolution
- Metrology and measurement system capability
- Basic statistics: central tendency, dispersion, graphical methods, valid statistical conclusions
- Probability: independence, mutual exclusivity, complementary probability, joint occurrence, and common distributions
- Process capability studies: Cp, Cpk, Pp, Ppk, sigma level and process performance indices
- Short-term versus long-term capability assumptions and their relationship
- Attributes data capability and non-normal data handling
Twenty-two scored questions and the most mathematically demanding area. It covers measuring and modelling relationships between variables, hypothesis testing, risk analysis and management, and additional analysis methods. Several topics are written at Evaluate level, including significance level, power, and type I and type II errors of statistical tests.
Key Topics to Master:
- Correlation coefficient, its confidence interval and interpretation
- Linear, multiple and logistic regression, plus multivariate tools such as MANOVA
- Hypothesis testing terminology: significance level, power, type I and type II errors
- Statistical versus practical significance
- Sample size determination for hypothesis tests
- Tests for means, variances and proportions, including ANOVA
- Chi-square, contingency tables and non-parametric tests
- Risk analysis and management, including failure mode and effects analysis
- Additional analysis methods such as gap analysis and root cause analysis tools
Twenty-one scored questions across design of experiments, lean methods and implementation. Design of experiments dominates, covering terminology, planning, one-factor experiments, full and two-level fractional factorials. Implementation asks you to select and evaluate results to choose the optimum solution, which is written at Evaluate level.
Key Topics to Master:
- Design of experiments terminology: factors, levels, blocking, replication, repetition, interaction
- Design principles: power, sample size, balance, randomization, confounding, resolution
- One-factor experiments and analysis of results
- Full factorial and two-level fractional factorial experiments
- Lean methods: value stream mapping, takt time, cycle time, kaizen, 5S, standard work
- Waste elimination, theory of constraints, cycle-time reduction, continuous flow, kanban
- Solution selection, piloting and validating improvements
- Evaluating alternative solutions to select the optimum
Seventeen scored questions on statistical process control, other control methods, maintaining controls and sustaining improvements. SPC covers objectives, selection of variables, rational subgrouping, chart selection and analysis. Measurement system reanalysis is written at Evaluate level: you review whether measurement capability is still sufficient once process capability improves.
Key Topics to Master:
- SPC objectives, variable selection and rational subgrouping
- Selecting and using control charts for variables and attributes data
- Analysis of control charts and out-of-control condition rules
- Other control tools including total productive maintenance and visual controls
- Measurement system reanalysis as process capability improves
- Control plan development and transfer of responsibility to the process owner
- Sustaining improvements, lessons learned and identifying further opportunities
- Training and documentation for the handed-over process
Six scored questions, the smallest area. It covers common DFSS methodologies, Design for X constraints, and robust design. Every topic here is written at Understand level, so the return on deep study is low relative to Measure or Analyze, but the six questions are cheap marks if you learn the acronyms and their sequences.
Key Topics to Master:
- DMADV: define, measure, analyze, design, validate
- DMADOV: define, measure, analyze, design, optimize, validate
- Design for X: design for cost, manufacturability or producibility, test and maintainability
- Robust product design and tolerance design
- Noise factors and their effect on design robustness
- Where DFSS applies compared with DMAIC on an existing process
Recommended Study Plan
- 1Confirm which eligibility route you meet: two completed projects with signed affidavits, or one project plus three years of experience in a CSSBB Body of Knowledge area
- 2Download the CSSBB project affidavit form from ASQ and get the signature process moving, because it gates the application
- 3Check the ASQ certification dates page for the next CBT testing window and its application deadline, which falls several weeks before the window opens
- 4Order The ASQ Certified Six Sigma Black Belt Handbook, which ASQ states can be used during the open-book exam
- 5Download the CSSBB Body of Knowledge insert and write the nine question counts on the inside cover of your handbook
- 1Tab the handbook by Body of Knowledge area, using Post-its attached before exam day since the test centre requires tabs to be in place on arrival
- 2Build a bound formula and table section, remembering that hand-stapled and unbound notes are prohibited and references are inspected before you enter
- 3Index your statistical tables so you can reach a t, F or chi-square value in under 20 seconds
- 4Take a full-length diagnostic from the ASQ CSSBB Question Bank to get a baseline by area
- 5Buy or borrow a non-programmable scientific calculator and confirm it has no programmable memory or graphing function
- 1Study the roles of champions, sponsors, process owners, Master Black Belts, Black Belts and Green Belts and what each contributes to deployment
- 2Learn the four benchmarking types and when each applies
- 3Work through financial measures: NPV, ROI, margin, cost benefit analysis, and hard versus soft cost benefits
- 4Practise distinguishing leading from lagging indicators in a business scenario
- 5Complete question bank sets restricted to areas I and II, which together carry 24 of 150 scored questions
- 1Study conflict resolution techniques against named group problems: dominant participants, groupthink, rushing to finish and digressions
- 2Learn situational leadership styles and match each to a team maturity scenario
- 3Work the voice of the customer toolset: CTQ tree, QFD, SIPOC and the Kano model
- 4Practise evaluating a weak problem statement against baseline performance and improvement goals
- 5Memorise the seven analytical tools listed under Define, from affinity diagrams to interrelationship digraph
- 1Study data types, measurement scales and sampling methods, including when each sampling approach is valid
- 2Work gauge repeatability and reproducibility studies until you can interpret the output rather than just run the calculation
- 3Cover bias, linearity, stability and resolution as separate measurement system properties
- 4Practise central tendency and dispersion calculations against timed conditions
- 5Complete 60 questions restricted to Measure and log misses by subsection
- 1Study the common distributions and which process situation each models
- 2Work Cp, Cpk, Pp and Ppk by hand until the difference between capability and performance is automatic
- 3Learn the short-term versus long-term capability relationship and the assumptions each requires
- 4Practise capability analysis on non-normal and attributes data
- 5Sit a timed 25-question Measure block matching the exam's largest area
- 1Calculate and interpret the correlation coefficient with its confidence interval
- 2Work simple, multiple and logistic regression, focusing on interpreting coefficients and residuals
- 3Drill significance level, power, type I and type II errors until you can define each in one sentence
- 4Practise sample size determination for tests of means and proportions
- 5Run every hypothesis test type once in Minitab or JMP so you recognise the output format under time pressure
- 1Work ANOVA, chi-square and contingency table problems end to end
- 2Practise choosing the correct test from a described data situation, which is how the exam asks it
- 3Study non-parametric alternatives and when the parametric assumptions fail
- 4Build an FMEA on a real process and calculate risk priority numbers
- 5Complete a timed 22-question Analyze block and review every wrong answer against the handbook
- 1Learn DOE terminology cold: factors, levels, blocking, replication, repetition, interaction, confounding, resolution
- 2Work a full factorial by hand, then a two-level fractional factorial, and articulate what the fraction costs you
- 3Study lean methods including value stream mapping, takt time, kanban, 5S and theory of constraints
- 4Practise selecting the optimum solution from a set of alternatives and justifying it against the project goal
- 5Complete 50 Improve questions and note which DOE concepts you still confuse
- 1Learn control chart selection by data type and subgroup structure, then practise chart interpretation rules
- 2Study rational subgrouping and why the wrong subgroup destroys the chart
- 3Write a control plan for a process you know, including the handover to the process owner
- 4Cover DMADV and DMADOV sequences, Design for X constraints and robust design, all at Understand level
- 5Complete a combined Control and DFSS block, 23 questions, matching their combined exam weight
- 1Sit two full 150-question practice exams at 4 hours 18 minutes with only your bound references, which is roughly 100 seconds per question
- 2Time how long a reference lookup takes and cut any lookup that costs more than 60 seconds by memorising the item instead
- 3Rebuild your tab structure based on what you actually reached for during the practice exams
- 4Review the subtopics where your score sits below the 550 of 750 standard
- 5Confirm your Prometric appointment details and calculator compliance
- 1Sit one final full-length exam and stop adding new material afterwards
- 2Verify every reference you plan to bring is permanently bound and that Post-it tabs are already attached
- 3Confirm your government-issued photo ID with signature matches the name on your ASQ application exactly
- 4Plan to arrive 30 minutes before the appointment, since ASQ states that late arrival forfeits the exam fee
- 5Rehearse your pacing plan: skip and flag anything that needs more than two minutes and return to it
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Best Study Resources
ASQ Six Sigma Black Belt certification page
Official vendor pageThe authoritative source for the $585 exam fee, the $385 retake fee, the $100 member discount, the 165-question format, the 4 hour 18 minute exam time, the eligibility rule and the ID, calculator and open-book policies.
Free
Certified Six Sigma Black Belt Body of Knowledge
Official blueprint (PDF)The nine-area Body of Knowledge with the exact number of questions per area and the maximum cognitive level for each topic, from Understand through Evaluate. The cognitive level tells you whether to memorise a definition or be able to judge a scenario.
Free
The ASQ Certified Six Sigma Black Belt Handbook
Reference bookThe companion to the Body of Knowledge, and ASQ states it can be used during the open-book exam. Tab it by Body of Knowledge area before exam day, since Post-its must be attached before you enter the test centre.
Paid, ASQ Quality Press
The ASQ CSSBB Study Guide
Study guideASQ's own study guide, designed to be used alongside the handbook rather than instead of it. Useful for structured review of areas where the handbook is dense.
Paid, ASQ Quality Press
CSSBB Question Bank
Practice questionsASQ's own bank of sample questions built against the CSSBB Body of Knowledge, with simulated timed exam and review modes so you can rehearse pacing alongside content.
Paid, ASQ
ASQ Certified Six Sigma Black Belt Certification Preparation course
Instructor-led or self-paced courseASQ's preparation course, structured as nine modules matching the nine Body of Knowledge areas. Available in classroom, virtual and self-paced formats.
Paid, ASQ
CSSBB project affidavit form
Official formThe form that evidences your completed Six Sigma projects. You need two signed affidavits, or one plus three years of relevant experience, before ASQ approves your application.
Free
ASQ Certification Candidate Handbook
Official policy documentThe full policy set covering identification, prohibited items, reschedule and cancellation rules including the $130 change fee, and conduct in the test centre.
Free
ASQ recertification page
Official policy pageSets out the three-year cycle, the 18 recertification units, the June 30 and December 31 due dates, the 60-day grace period, journal fees of $120 for members and $160 for non-members, and recertification by exam at $485 for members or $585 otherwise.
Free
ASQ certification dates and testing windows
Official scheduleLists the computer-based testing windows and their application deadlines. Applications close several weeks before a window opens, so this page determines when you can realistically sit.
Free
Common Mistakes to Avoid
Treating open book as a substitute for knowing the material.
You get about 100 seconds per question across 150 scored items. A lookup that takes 90 seconds costs you the question. Use references for tables, constants and rarely used formulas, and know everything else cold before you walk in.
Bringing unbound or hand-stapled reference material.
ASQ requires all references, including notes, to be permanently bound by stitching, glue, ring binder, spiral binder, plastic snap binder, brads or screw posts, and the Test Center Administrator inspects them before you enter. Hand-stapled documents, unbound notes and blank tablets are turned away at the door.
Bringing a programmable or graphing calculator.
Only silent, hand-held, battery-operated calculators with no programmable memory are permitted, and ASQ names the Texas Instruments TI-89 and similar models as not allowed. There is an on-screen basic scientific calculator in the exam, and Prometric can supply a hand-held basic calculator on request, so test your intended device against the rule weeks in advance.
Applying without the project affidavits in place.
Certification requires two completed projects with signed affidavits, or one completed project plus three years of on-the-job experience in a Body of Knowledge area. If ASQ determines you do not meet the requirement, you get a refund minus a $130 processing fee. Start the signature process before you apply, not after.
Studying the nine areas evenly.
Measure carries 25 questions, Analyze 22 and Improve 21, while Design for Six Sigma carries 6 and it is examined only at Understand level. The three heaviest areas are 68 of the 150 scored questions. Spend your hours where the marks are.
Ignoring the cognitive level markers in the Body of Knowledge.
ASQ prints the maximum cognitive level in parentheses after each topic. Process capability short-term versus long-term is Evaluate, DFSS methodologies are Understand. That tells you whether the exam will ask you to recognise a definition or judge a situation, and it is the single most useful signal in the blueprint.
Skipping Team Management because it looks like soft content.
Team Management is 15 scored questions, two and a half times what Design for Six Sigma carries, and its topics are written at Apply and Evaluate level. Questions ask you to pick the right intervention for a described group dynamic, not to define a term.
Missing the application deadline for the testing window you want.
ASQ publishes a CBT testing window with an application deadline several weeks earlier. Online application review takes one to two business days, then you wait one to two business days for the eligibility email before you can schedule with Prometric. Work backwards from the window, not forwards from today.
Assuming you can retake immediately.
ASQ does not allow you to retake within the same window as your initial exam. You retake at the $385 rate for two years from your previous attempt, with no limit on attempts, but after two years you submit a new application at full fee.
Exam Day Tips
- 1
Arrive 30 minutes before your appointment. ASQ states that late arrival means you will not be allowed to test and you forfeit your exam fee.
- 2
Bring one valid government-issued photo ID with a signature, and check that the name matches your ASQ application exactly rather than approximately.
- 3
Expect the Test Center Administrator to inspect every reference before you enter the exam room. Anything unbound or hand-stapled will not go in with you.
- 4
Attach your Post-it tabs before you arrive. Post-its are permitted as book tabs only, and they must already be in place when you reach the test centre.
- 5
Leave slide charts and wheel charts at home. ASQ names hand-held cardboard or plastic calculating devices with rotating or sliding pieces as prohibited items.
- 6
All personal belongings go into a temporary Prometric locker. You keep your ID and locker key with you and nothing else.
- 7
Prometric supplies scratch paper and pencils, so do not plan to bring your own writing pad. Blank tablets and tablets containing blank pages are prohibited.
- 8
Pace against 4 hours 18 minutes for 165 questions, roughly 94 seconds each. Answer the calculation-light areas first if you find them faster and bank time for Analyze.
- 9
Use the on-screen scientific calculator or ask the Test Center Administrator for a hand-held basic calculator, but check your own calculator against the no-programmable-memory rule before the day.
- 10
You see preliminary results on screen immediately after submitting, and official results arrive by email from ASQ within 7 days for standard computer-based exams.
Career Paths & Salary Ranges
Six Sigma Black Belt
Leads cross-functional improvement projects full time using DMAIC, mentors Green Belts and reports savings to a sponsor. The certification's project affidavit requirement maps directly onto this role's deliverables.
Varies by industry and region; ASQ publishes no salary figure with the credential
Continuous improvement manager
Owns the improvement portfolio for a site or business unit, selects projects against strategic goals and manages a bench of belts. The Organization-Wide Planning and Deployment area covers exactly this scope.
Varies by industry and region
Quality manager or quality engineer
Runs quality systems, capability studies and control plans in manufacturing, medical devices or pharmaceuticals. The Measure and Control areas of the Body of Knowledge are the daily toolkit.
Varies by sector and scope, with medical device and pharmaceutical quality roles at the higher end
Operational excellence consultant
Deploys lean and Six Sigma across client organisations, often in healthcare or financial services. The ANAB accreditation of the ASQ credential is what distinguishes it on a consulting bid.
Varies by firm and utilisation
Master Black Belt track
ASQ offers a separate Certified Master Black Belt credential with its own requirements. Holding CSSBB and a track record of coached projects is the normal route into that role.
Above the Black Belt band in most markets
Prerequisites & Requirements
- Two completed Six Sigma projects with signed affidavits, or one completed project with a signed affidavit plus three years of on-the-job experience in one or more areas of the CSSBB Body of Knowledge.
- The project affidavit form must be downloaded from ASQ, completed and submitted with the application.
- There is no formal degree requirement and no requirement to hold a Green Belt first.
- ASQ membership is not required, but members save $100 on the initial examination fee.
- Your application must be approved before you can schedule. ASQ reviews online applications in one to two business days, and if you do not meet the requirements you receive a refund minus a $130 processing fee.
Frequently Asked Questions
How much does the ASQ CSSBB exam cost?
The exam fee is $585, and ASQ members save $100 on the initial examination fee, bringing it to $485. Retakes are $385. Changing your appointment through Prometric costs $130, and a rejected application is refunded minus a $130 processing fee.
What is the CSSBB passing score?
You need 550 points out of a possible 750 on ASQ's scaled score. ASQ uses criterion-referenced scoring designed to separate competent from not-competent candidates rather than to rank them, which is why it does not report your scaled score if you pass.
How many questions are on the CSSBB exam and how long is it?
The computer-delivered exam has 165 questions, of which 150 are scored and 15 are unscored. Total appointment time is four and a half hours and exam time is 4 hours and 18 minutes. The paper and pencil version is 150 questions in four hours.
Is the CSSBB exam open book?
Yes. All ASQ exams are open book and you bring your own reference materials. Every reference, including notes, must be permanently bound and stay bound during the exam, and the Test Center Administrator inspects them before you enter. Hand-stapled materials, unbound notes and blank tablets are prohibited.
What calculator can I use on the CSSBB exam?
Any silent, hand-held, battery-operated calculator with no programmable memory. Programmable and graphing calculators are not allowed, and ASQ names the Texas Instruments TI-89 and similar models specifically. Computer-based exams also include an on-screen basic scientific calculator, and Prometric can provide a hand-held basic calculator on request.
What experience do I need before I can sit the CSSBB?
Either two completed Six Sigma projects with signed affidavits, or one completed project with a signed affidavit plus three years of on-the-job experience in one or more areas of the CSSBB Body of Knowledge. There is no degree requirement and no requirement to hold a Green Belt first.
What happens if I fail the CSSBB exam?
You receive a summary of your performance by email within 3 to 5 business days, and a detailed analysis is available in your ASQ account showing correct and incorrect answers by Body of Knowledge subtopic. You can retake at the $385 rate for two years from your previous attempt, with no limit on the number of attempts, but you may not retake within the same window as your initial exam.
How long does CSSBB certification last?
Three years. ASQ requires recertification every three years, either by submitting 18 recertification units through the online journal or by retaking the exam. If you do not recertify, the certification lapses and you must stop using the acronym.
How do recertification units work?
You need 18 recertification units over the three-year cycle, documented in ASQ's online recertification journal, and every activity must tie to an area of your certification's Body of Knowledge. Qualifying activities include employment at 0.3 RU per month for full-time work, 2.0 RUs for each additional ASQ certification, 1.0 RU for other professional certifications, and volunteering at 0.1 RU per hour to a maximum of 1.0 RU.
What does recertification cost?
Recertifying by journal costs $120 for ASQ members and $160 for non-members for a single certification, or $140 total for members synchronising two or more. Recertifying by exam costs $485 for members and $585 for non-members.
What happens if I miss my recertification date?
You have a 60-day grace period to recertify by journal. After that you can only recertify by exam, and you have six months from your recertification date to do so. If you do not recertify by exam within one year of your recertification date, the certification expires and you must reapply for initial certification.
When can I take the exam?
ASQ runs defined computer-based testing windows with an application deadline several weeks before each window opens. After your application is approved, you receive an eligibility email in one to two business days with instructions to schedule with Prometric inside the window you selected.
Can I take the CSSBB exam online?
ASQ offers remote proctored online delivery in addition to Prometric test centres, and directs candidates to its computer-based testing page for the requirements. The open-book, calculator and identification rules apply in both settings.
How quickly do I get CSSBB results?
You see preliminary results on screen immediately after submitting a computer-based exam. Official results are emailed by ASQ within 7 days, except for Master Black Belt and pilot exams with a revised Body of Knowledge, which take up to 4 weeks. Paper-based results are emailed within 2 weeks.
What is the CSSBB pass rate?
ASQ publishes pass rates by certification and lists CSSBB at 76 percent for 2022, 75 percent for 2023 and 73 percent for 2024. Everyone counted in those figures had already evidenced completed project work to sit, so the number describes practising Black Belts rather than people meeting the material for the first time.
How does CSSBB compare with the ASQ Six Sigma Green Belt?
The Green Belt is a lifetime certification with no recertification requirement, while the Black Belt must be recertified every three years. The Black Belt also requires completed project affidavits, covers organization-wide deployment and Design for Six Sigma that the Green Belt does not, and examines statistics at a higher cognitive level. You do not need the Green Belt before sitting the Black Belt.
How does the ASQ Black Belt differ from a training provider's Black Belt?
The ASQ programme is accredited by the ANSI National Accreditation Board under ISO 17024, which means an independent body validates how the certification is developed, implemented and maintained. It also requires signed project affidavits and independent proctored examination, where many provider-issued belts are awarded on course completion alone.
Are accommodations available for the CSSBB exam?
ASQ operates a special accommodations process for candidates who need adjustments under applicable disability law, requested as part of the certification application rather than through Prometric directly. Submit the request with your application, because approvals must be in place before the eligibility email is issued and the scheduling window is short.
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