- The CC exam has seven official domains covering everything from calculations to molecular genetics.
- Part A (Calculations and Problem Solving) has 30 questions; Part B (Analytical and Clinical Issues) has 140 questions.
- Both parts must be passed within a three-year eligibility window, with two attempts allowed per part.
- Application and exam fees total $900 when both parts are taken: $500 application plus $200 per part.
Exam Structure at a Glance
Board Certification in Clinical Chemistry (CC), administered by the American Board of Clinical Chemistry (ABCC), is built around two distinct exam parts that together assess seven official knowledge areas. Understanding how those seven domains distribute across the two parts is the single most useful thing you can do before you open a textbook. If you're still deciding whether this credential fits your career, start with What Is CC Certification? or the broader overview at CC Certification before committing to a study plan.
Part A, Calculations and Problem Solving, is a tightly timed 30-question, three-hour exam focused on quantitative reasoning. Part B, Analytical and Clinical Issues, is a much larger 140-question exam delivered in three and a half hours and carries the bulk of the content - 140 of the total 170 questions across both parts. Every question on both parts is five-option multiple choice.
The Seven Domains at a Glance
The ABCC organizes CC content into seven official knowledge areas. These domains aren't split evenly by question count published for each one, but they define the boundaries of what Part A and Part B will test. Knowing them by name - and knowing which part of the exam draws most heavily on each - lets you prioritize study time instead of re-reading an entire clinical chemistry textbook cover to cover.
| Domain | Primary Focus | Exam Part Emphasis |
|---|---|---|
| 1. Clinical Chemistry Interpretation and Problem Solving | Reasoning through lab results and clinical scenarios | Part B |
| 2. Clinical Case Approach | Applying chemistry knowledge to patient case vignettes | Part B |
| 3. Analytical, Instrumentation, and Methodology | Assay principles, instrumentation, method validation | Part B |
| 4. Statistical Analysis and Mathematics | Calculations, formulas, quantitative problem solving | Part A |
| 5. Toxicology | Drug monitoring, poisoning, toxicological interpretation | Part B |
| 6. Regulatory, Management, and Quality Assurance | Lab regulations, QA/QC, management principles | Part B |
| 7. Molecular and Genetics | Molecular diagnostics and genetic testing concepts | Part B |
For a condensed, printable version of this breakdown, see the CC Cheat Sheet 2026: One-Page Review of Must-Know Facts.
Domain-by-Domain Breakdown
Domain 1: Clinical Chemistry Interpretation and Problem Solving
This domain tests your ability to interpret laboratory data patterns rather than simply recall reference ranges. Expect scenarios that require you to reconcile conflicting or unexpected results.
- Recognizing analytical interference patterns in result sets
- Differentiating pathophysiological causes of abnormal panels
- Prioritizing next steps when results contradict clinical presentation
Domain 2: Clinical Case Approach
Rather than isolated lab values, this domain presents fuller patient case vignettes that blend history, symptoms, and lab data. You're expected to synthesize information the way a consulting clinical chemist would.
- Working through multi-step case narratives efficiently under time pressure
- Connecting lab findings to differential diagnoses
- Identifying which additional testing would clarify an ambiguous case
Domain 3: Analytical, Instrumentation, and Methodology
This is the technical backbone of the exam - the science behind how results are generated. Candidates need working familiarity with major analytical platforms and methods used in clinical laboratories.
- Immunoassay, chromatography, and mass spectrometry principles
- Method validation, calibration, and troubleshooting logic
- Sources of analytical error and how to detect them
Domain 4: Statistical Analysis and Mathematics
This domain aligns closely with Part A. It rewards speed and accuracy on calculation-heavy problems rather than conceptual recall.
- Reference interval and diagnostic statistics calculations
- Dilution, concentration, and unit-conversion problems
- Quality control statistics such as means, standard deviations, and control rules
Domain 5: Toxicology
Toxicology questions test both acute poisoning management and routine therapeutic drug monitoring - two very different skill sets under one domain heading.
- Common toxidromes and confirmatory testing approaches
- Therapeutic drug monitoring principles and pitfalls
- Specimen and matrix considerations in toxicology testing
Domain 6: Regulatory, Management, and Quality Assurance
This domain covers the operational side of running a clinical laboratory - the material many bench-focused candidates underestimate.
- Quality assurance and quality control program design
- Regulatory and accreditation frameworks governing labs
- Laboratory management, staffing, and workflow principles
Domain 7: Molecular and Genetics
The smallest but fastest-evolving domain, covering molecular diagnostics concepts that increasingly overlap with mainstream clinical chemistry practice.
- PCR-based and next-generation testing principles
- Genetic markers relevant to clinical chemistry practice
- Interpreting molecular test results in a clinical context
How Domains Map to Part A and Part B
Because Part B carries 140 of the 170 total questions, most of the seven domains are weighted toward it. Domain 4, Statistical Analysis and Mathematics, is the primary driver of Part A's 30 calculation-focused questions, while Domains 1, 2, 3, 5, 6, and 7 populate the larger Part B exam alongside additional analytical and clinical content.
This structural split matters for scheduling: you can attempt each part no more than twice, and both parts must be passed within a three-year eligibility period. If you're unsure how the ABCC defines a passing performance on each part, review CC Passing Score 2026: Exactly What You Need to Pass before you register.
Key Takeaway
Treat Part A and Part B as two different study projects. Part A rewards calculation drills under time pressure; Part B rewards broad recall and case-based reasoning across six domains.
Registration, Fees, and Eligibility Mechanics
The CC application fee is $500 and is nonrefundable. Each part of the exam costs $200, so a candidate taking both Part A and Part B pays $900 total in application and examination fees. Exams are delivered through Kryterion testing centers, and as of February 2026 all testing is in person with no prescheduled breaks during either part.
Standard eligibility requires:
- An accepted doctoral degree
- At least 30 semester hours of qualifying coursework
- Five years of postdoctoral professional experience in an approved clinical-laboratory setting
- Three professional references
Accredited-fellowship pathways and alternate-board exceptions can shorten the required experience timeline for some candidates. For the full breakdown of documentation and pathway options, see CC Requirements 2026: Eligibility, Prerequisites & How to Qualify. For a complete cost picture including renewal obligations, check CC Certification Cost 2026: Complete Pricing Breakdown.
For current testing window information and how the three-year eligibility clock interacts with your registration date, see CC Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Building a Domain-Based Study Timeline
Rather than studying chronologically through a textbook, map your preparation to the seven domains and the two exam parts they feed. A domain-first schedule keeps Part A's calculation-heavy content separate from Part B's broader recall load, which matters because the skills - speed math versus case reasoning - don't overlap much.
Domain 4: Statistical Analysis and Mathematics
- Drill dilution, unit-conversion, and QC statistics problems daily
- Time yourself against Part A's three-hour, 30-question pace
Domains 3 and 6: Instrumentation and Regulatory/QA
- Build a reference sheet of analytical methods and their limitations
- Review accreditation and quality-program frameworks
Domains 1 and 2: Interpretation and Case Approach
- Work through case vignettes under timed conditions
- Practice reconciling contradictory lab findings
Domains 5 and 7: Toxicology and Molecular/Genetics
- Review toxidromes and therapeutic drug monitoring pitfalls
- Cover molecular diagnostic principles and genetic testing basics
For a more detailed week-by-week plan with resource recommendations, see the CC Study Guide 2026: How to Pass on Your First Attempt. If you want a realistic sense of how tough the combined Part A/Part B experience actually is before you commit to a ten-week plan, read How Hard Is the CC Exam? Complete Difficulty Guide 2026 and review current outcome data in CC Pass Rate 2026: What the Data Shows.
Who Hires CC-Certified Professionals
CC certification signals doctoral-level expertise across clinical chemistry's full scope - from bench-level analytical methodology to laboratory regulatory oversight. That breadth is exactly why the seven domains matter beyond the exam itself: they mirror the actual responsibilities of a certified clinical chemist working in a hospital, reference laboratory, or diagnostics company.
Employers hiring for these roles typically look for demonstrated competence in instrumentation and methodology (Domain 3), regulatory and quality assurance oversight (Domain 6), and increasingly, molecular diagnostics familiarity (Domain 7) as labs expand genetic testing menus. To see how this credential translates into specific job titles and career trajectories, browse CC Jobs and the broader discussion in Is the CC Certification Worth It? Complete ROI Analysis 2026. Compensation considerations are covered separately in CC Salary Guide 2026: Complete Earnings Analysis.
If you're still early in your research and need the basics clarified - what the credential is, what the acronym stands for, and how it differs from similarly abbreviated credentials - start with What Is CC?, CC Meaning, or What Does CC Stand For?. Formal exam-prep coursework options are outlined in CC Training.
Once you've reviewed the domains here, reinforce your recall with realistic practice questions on our practice test platform - working through domain-tagged questions on the main site is one of the fastest ways to see which of the seven areas needs more attention before exam day. You can also revisit the homepage for a full library of CC-specific study tools.
Frequently Asked Questions
There are seven official knowledge areas: Clinical Chemistry Interpretation and Problem Solving, Clinical Case Approach, Analytical/Instrumentation/Methodology, Statistical Analysis and Mathematics, Toxicology, Regulatory/Management/Quality Assurance, and Molecular and Genetics.
Statistical Analysis and Mathematics is the primary focus of Part A's 30 calculation-based questions. The remaining six domains are assessed across Part B's 140 questions.
No. Part A and Part B can be attempted separately, but both must be passed within a three-year eligibility period, and each part may be attempted a maximum of two times.
The nonrefundable application fee is $500, plus $200 per part. Taking both Part A and Part B totals $900 in application and examination fees.
No. Since February 2026, the CC exam has been administered in person at Kryterion testing centers, and neither part includes prescheduled breaks.