- What Is CC Certification?
- Who Administers It and Where You Test
- Exam Structure: Part A and Part B
- The Seven Knowledge Domains
- Eligibility Requirements
- Application Fees and Costs
- Attempt Limits and the Three-Year Window
- Pass Rates: What the Numbers Mean
- Maintaining Active DABCC Status
- Who Hires CC-Certified Professionals
- Mapping a Study Plan to the Domain Weighting
- Frequently Asked Questions
- CC certification is issued by the American Board of Clinical Chemistry (ABCC) via Kryterion testing centers.
- Total fees are $900: a $500 nonrefundable application fee plus $200 per part for both Part A and Part B.
- Part A has 30 questions in three hours; Part B has 140 questions in three and a half hours.
- Both parts must be passed within a three-year eligibility window, with a maximum of two attempts per part.
What Is CC Certification?
CC certification-Board Certification in Clinical Chemistry-is a credential for doctoral-level laboratory scientists who direct, interpret, and troubleshoot clinical chemistry testing. It is not a general laboratory technologist license and it is not connected to any other credential that happens to share the "CC" initials. Passing both examination parts earns you Diplomate status with the American Board of Clinical Chemistry, commonly abbreviated DABCC.
If you're still orienting yourself to the basics, start with What Is CC?, CC Meaning, or What Does CC Stand For?. This article assumes you already know you're pursuing Board Certification in Clinical Chemistry and want the concrete mechanics: structure, cost, domains, and what it takes to pass.
Who Administers It and Where You Test
The American Board of Clinical Chemistry (ABCC) owns and administers the CC exam. Testing is delivered through Kryterion testing centers rather than a generic vendor network, which matters when you're scheduling: seat availability, check-in procedures, and center policies follow Kryterion's system specifically.
A significant operational change took effect in February 2026: examinations moved to in-person delivery at Kryterion centers, and neither part includes prescheduled breaks. That means your three-hour Part A session and your three-and-a-half-hour Part B session each run as a single continuous block. Candidates coming from exams that allowed a scheduled break midway should plan pacing and hydration/restroom strategy accordingly, since stopping the clock is not built into the format.
Exam Structure: Part A and Part B
CC certification is delivered in two distinct parts, and you can sit for them independently:
- Part A - Calculations and Problem Solving: 30 five-option multiple-choice questions, three-hour time limit.
- Part B - Analytical and Clinical Issues: 140 five-option multiple-choice questions, three-and-a-half-hour time limit.
Notice the weighting: Part B carries 140 of the combined 170 questions across both parts. That's not a minor imbalance-it means the analytical and clinical content tested in Part B represents the overwhelming majority of your total question exposure, even though Part A's calculation-heavy format can feel disproportionately stressful given its tighter per-question time budget (six minutes per question versus roughly 1.5 minutes per question in Part B).
For a full breakdown of what "passing" actually requires on each part, see CC Passing Score 2026: Exactly What You Need to Pass.
| Attribute | Part A | Part B |
|---|---|---|
| Title | Calculations and Problem Solving | Analytical and Clinical Issues |
| Question Count | 30 | 140 |
| Time Limit | 3 hours | 3.5 hours |
| Fee | $200 | $200 |
| Max Attempts | 2 | 2 |
The Seven Knowledge Domains
ABCC organizes content across seven official knowledge areas that frame both parts of the exam. Understanding how these domains map to Part A versus Part B changes how you should allocate study time.
Domain 1: Clinical Chemistry Interpretation and Problem Solving
Interpreting analyte panels in context, recognizing patterns of disease, and reasoning through abnormal result sets.
- Correlating lab values with clinical presentation
Domain 2: Clinical Case Approach
Applying laboratory data to real patient scenarios, often requiring multi-step reasoning across several test results at once.
- Synthesizing case vignettes into a diagnostic or monitoring conclusion
Domain 3: Analytical, Instrumentation, and Methodology
Understanding how results are generated-method principles, interferences, and instrument-level troubleshooting.
- Recognizing analytical interference and method-specific limitations
Domain 4: Statistical Analysis and Mathematics
The core content behind Part A's calculation-heavy format, including quantitative reasoning applied to laboratory data.
- Working through calculations under strict time pressure
Domain 5: Toxicology
Drug and toxin analysis, therapeutic drug monitoring, and interpretation of toxicology screening results.
- Distinguishing screening from confirmatory testing logic
Domain 6: Regulatory, Management, and Quality Assurance
Laboratory oversight topics: quality control practices, regulatory compliance, and management-level decision making.
- Applying QA/QC principles to real laboratory scenarios
Domain 7: Molecular and Genetics
Molecular diagnostic principles and genetic testing concepts as they intersect with clinical chemistry practice.
- Understanding molecular method basics and clinical application
For a deeper walkthrough of each area with more granular subtopics, read CC Exam Domains 2026: Complete Guide to All 7 Content Areas.
Eligibility Requirements
Standard eligibility for CC certification requires all of the following:
- 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
Candidates who complete an accredited fellowship, or who qualify through an alternate-board pathway, may be eligible for a shortened experience requirement. Because these exceptions involve documentation review, it's worth confirming your specific pathway well before you plan to apply. Full detail on each requirement and how the exceptions work is covered in CC Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Key Takeaway
Don't assume the standard five-year experience requirement applies to you-fellowship and alternate-board candidates should verify their shortened pathway with ABCC before submitting the $500 application fee.
Application Fees and Costs
CC certification costs are straightforward but nonrefundable, so it pays to be certain of your eligibility before you pay:
- Application fee: $500, nonrefundable
- Each exam part: $200
- Total when taking both parts: $900
Since the application fee doesn't come back if you're found ineligible or change your mind, review the requirements carefully first. A complete pricing breakdown, including how costs compare if you only need to retake a single part, is available in CC Certification Cost 2026: Complete Pricing Breakdown.
Attempt Limits and the Three-Year Window
Candidates must pass both Part A and Part B within a three-year eligibility period. Within that window, each part may be attempted no more than twice. This creates a real strategic constraint: if you fail a part on your first attempt, you have exactly one more chance before your eligibility period-or your attempt allowance for that part-runs out.
This is a strong argument against scheduling both parts casually or "just to see." Treat your first attempt at each part as the one that counts, and build your preparation timeline around the domain weighting rather than a generic countdown. For scheduling specifics and how the testing calendar works with Kryterion centers, see CC Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Pass Rates: What the Numbers Mean
ABCC publishes average cumulative five-year pass rates of 53% for Part A and 55% for Part B. Read those numbers as cumulative across up to two attempts within the eligibility window, not as a single-sitting first-attempt figure. Neither part is dramatically easier than the other in aggregate, but they test different skills under different time pressure-Part A's tight per-question time budget on calculations, Part B's breadth across nearly all seven domains.
For a full statistical breakdown and what it implies for your prep timeline, see CC Pass Rate 2026: What the Data Shows. If you're trying to gauge overall difficulty before committing the $900 in fees, How Hard Is the CC Exam? Complete Difficulty Guide 2026 walks through the format-specific challenges of both parts.
Maintaining Active DABCC Status
Passing both parts earns Diplomate status (DABCC), but that status isn't permanent without upkeep. To remain active, Diplomates must complete 50 continuing-education contact hours and pay a $350 renewal fee every two years. Budget for this recurring cost as part of your long-term ROI calculation-certification isn't a one-time expense.
Who Hires CC-Certified Professionals
CC-certified professionals typically work in clinical laboratory leadership and technical roles: laboratory directors, technical supervisors, and specialist positions in hospital laboratories, reference laboratories, and academic medical centers. Because the credential requires a doctoral degree and postdoctoral clinical-laboratory experience, it signals readiness for oversight-level responsibilities covered in Domain 6-regulatory compliance, quality assurance, and laboratory management-rather than entry-level bench work.
If you're weighing whether the time and $900 in fees are worth it relative to your career trajectory, Is the CC Certification Worth It? Complete ROI Analysis 2026 and CC Salary Guide 2026: Complete Earnings Analysis break down the practical career impact in more depth. For a sense of the roles actively seeking this credential, browse CC Jobs.
Mapping a Study Plan to the Domain Weighting
Because Part B carries 140 of 170 total questions, your study calendar should weight time toward the domains most represented there-Clinical Chemistry Interpretation and Problem Solving, Clinical Case Approach, and Analytical, Instrumentation, and Methodology-while still reserving dedicated blocks for Part A's calculation focus (Domain 4) since it carries its own pass/fail attempt limit independent of Part B.
Foundations: Domains 1 & 3
- Review interpretation logic for common analyte panels
- Study instrument methodology and interference sources
Case Reasoning: Domain 2
- Work through multi-step case vignettes
- Practice translating panels into a single clinical conclusion
Calculations: Domain 4 (Part A focus)
- Drill timed calculation sets under a three-hour, no-break simulation
- Track speed per question against the six-minute average
Specialty Areas: Domains 5, 6 & 7
- Cover toxicology screening/confirmation logic
- Review QA/QC and regulatory frameworks
- Study molecular and genetic testing fundamentals
Spaced repetition and timed practice blocks are useful methodology here, but only if applied against the actual weighting above-spending equal time on all seven domains ignores the fact that Part B's 140 questions dominate your total score exposure. For a structured week-by-week plan and first-attempt strategy, see CC Study Guide 2026: How to Pass on Your First Attempt, and keep CC Cheat Sheet 2026: One-Page Review of Must-Know Facts handy for last-week review. Running full-length timed simulations on our practice test platform before test day is the closest way to rehearse the no-break, in-person format ABCC now uses.
Key Takeaway
Allocate study time proportionally to question count: Part B's 140 questions across Domains 1, 2, 3, 5, 6, and 7 deserve more total hours than Part A's 30 calculation questions, even though Part A feels harder minute-to-minute.
Frequently Asked Questions
Yes. The two parts are scheduled and paid for separately at $200 each, and many candidates sit for them on different testing dates as long as both are completed within the three-year eligibility period.
Each part allows a maximum of two attempts. If you do not pass a part within two attempts, you will need to review current ABCC policy on reapplying, since the standard eligibility period allows only two tries per part.
No. Since February 2026, both parts are delivered in person at Kryterion testing centers, and neither part includes a prescheduled break.
Standard eligibility requires at least 30 semester hours of qualifying coursework alongside an accepted doctoral degree; specifics on what counts should be verified against your individual academic transcript and the ABCC eligibility criteria.
Active DABCC status requires 50 continuing-education contact hours and a $350 renewal fee every two years.
For related terminology questions, see What Is A CC?, What Does CC Mean?, and What Is CC Certification?. If you're building foundational knowledge before diving into practice questions, CC Training and the broader CC Certification overview are good next stops, and you can start testing your readiness anytime on our practice exam platform.