What Is A CC?

The Short Answer: What a CC Actually Is

On this site, a CC is a Clinical Chemist: a professional who has earned certification through the National Registry of Certified Chemists. The credential signals that the holder has the scientific depth, analytical judgment, and laboratory practice knowledge to work at the doctoral level in clinical chemistry, the discipline that measures chemical substances in blood, urine, and other body fluids to support diagnosis and treatment.

The letters "CC" are shared by several unrelated credentials in other fields, which is a common source of confusion when you search the term. Everything in this article refers only to the NRCC Clinical Chemist certification. If you want a broader orientation to the terminology first, our explainers on what CC stands for and the meaning of CC cover the naming in more detail.

Who Issues the Credential

The certifying body is the National Registry of Certified Chemists (NRCC). Its official clinical chemistry page is at nrcc6.org/clinical, and that is the authoritative place to confirm current standards before you apply. Policies, eligibility language, and examination standards can be updated, so treat the issuer's published materials as the final word and treat any third-party summary, including this one, as orientation.

NRCC describes both the certification itself and the examination standards behind it. The Board of Directors plays a defined role in setting the passing standard after reviewing scores, which matters for how you think about the target you are preparing for (more on that below).

What the Exam Looks Like

The examination is delivered by computer and consists of 150 multiple-choice questions to be completed within three hours. That works out to roughly 72 seconds per question on average, which sounds generous until you hit a multi-step calculation or a dense case-style item. Pacing is a real skill here, not an afterthought.

Three levels of thinking

NRCC describes assessment at three cognitive levels, and knowing them helps you study the right way:

• Recall or memory: Direct knowledge, such as identifying a reference method, a analyte's clinical significance, or a standard technique.
• Interpretation or comprehension: Reading a result pattern, understanding what a change in one value implies for another, or explaining why a method behaves as it does.
• Problem solving or reasoning: Applying principles to a novel scenario, troubleshooting an unexpected result, or working through a calculation to a conclusion.

Candidates who only memorize facts tend to feel the gap at the third level. If you want a sense of how demanding this combination is in practice, see our candid look at how hard the CC exam is.

Where the emphasis falls

The issuer places its emphasis on Basic Science, Methodology, and Laboratory Practice; Analysis and Evaluation; and Patient Preparation, Specimen Collection and Handling. Management and Administration is covered only to a lesser extent. In other words, this is a science-and-judgment exam, not a laboratory-management exam. A candidate with strong bench and interpretive skills but little interest in budgeting and staffing theory is aligned with how the test is built.

What the Exam Tests: 23 Content Areas

NRCC publishes an official, non-exhaustive list of question-topic categories. We organize them into 23 content areas for preparation purposes. It is important to be precise about what this list is: it is a topic list to guide study, not a weighted blueprint. NRCC's source does not establish percentage weights per area, and the list does not claim to cover every possible question. Use it as a map of the terrain rather than a guarantee of coverage.

Our full walkthrough lives in the complete guide to all 23 CC content areas. Here is how they cluster conceptually.

Analytical foundations

Metabolic and organ-system chemistry

Specialty and systems topics

The catch-all area

Notice how Domain 23 connects directly to the issuer's emphasis on specimen collection and handling. Pre-analytical thinking is not a side topic; it threads through the whole exam.

Who Qualifies to Sit for It

Eligibility is built on three pillars, drawn from NRCC's published requirements:

1. Education: Qualifying doctoral-level education.
2. Coursework: Required chemistry/biochemistry and natural science coursework.
3. Experience: Minimum clinical chemistry experience requirements, with approved training alternatives recognized.

Applicants are also subject to residency limits: the exam is available to applicants in the United States and Canada. The precise combinations of degree, coursework, and experience that qualify are detailed on the issuer's site, and our guide to CC requirements, eligibility, and prerequisites unpacks how to map your own background against them.

Registration and Scheduling Mechanics

Rather than booking a seat at a national testing center, candidates schedule with an NRCC-approved local proctor. That arrangement changes the logistics: availability depends on your proctor, so start the conversation early instead of assuming a flexible calendar. For a closer look at timing considerations, see our overview of CC exam dates and scheduling.

What we can and cannot tell you about cost and scoring

Two items candidates ask about constantly deserve a plain answer:

• Fees: NRCC's current source does not establish an examination fee figure in the material we rely on, so we will not quote one. Confirm directly with the issuer; our CC certification cost breakdown explains how to think through the full budget.
• Passing score: The passing standard is set by the Board of Directors after score review, and no numeric cutoff is published. That means you cannot prepare to a magic percentage; you prepare for broad competence. See what is known about the CC passing score for how to interpret that.

Where a CC Fits in the Workplace

Clinical Chemists work wherever laboratory measurement supports patient care and research. Typical settings include hospital and reference laboratories, diagnostic and biotechnology companies, and academic or research institutions. The credential is most relevant for doctoral-level professionals who direct or consult on laboratory testing, validate methods, interpret complex results, or advise on test utilization.

We deliberately avoid quoting salary numbers here, because we will not present figures we cannot source. If you are weighing the credential as a career investment, our analyses of CC earnings and whether the CC certification is worth it walk through the considerations qualitatively, and our page on CC jobs looks at the kinds of roles that value the credential.

Keeping the Credential Active

Certification is not a one-time event. Certified Clinical Chemists maintain their status through continuing education: either 20 contact hours per year or 60 CE credits across a three-year renewal period. This keeps the credential aligned with a field that changes quickly, especially in areas like mass spectrometry and molecular diagnostics.

Sequencing Your Prep by Domain

Since this is the one place we discuss study planning, the focus is on order rather than generic technique. The logic is to build the analytical foundation first, because later clinical areas assume you can reason about how a number was produced and how trustworthy it is.

Practice in the actual format matters. Working timed multiple-choice sets on our CC practice exams helps you internalize the pacing and the three levels of questioning before test day. For a broader sense of how the credential is framed, you can also read our overview of what CC certification is.

Frequently Asked Questions