Part of the expanding PassProfessor catalog: The Certified Genetic Counselor (CGC) credential is granted by the American Board of Genetic Counseling (ABGC) to genetic counselors who hold a master’s degree in genetic counseling from a program accredited by the Accreditation Council for Genetic Counseling (ACGC) and receive a passing score on the ABGC Certification Examination: 200 multiple-choice questions — 170 scored and 30 pretest items — in 4 hours, offered in published February and August examination windows. Certification is valid for five years, after which diplomates recertify. PassProfessor’s Certified Genetic Counselor program is in development.
This program is part of the expanding PassProfessor catalog — join the notify list and we’ll email you when enrollment opens.
The program is in development, built on the published outline for this examination. Join the notify list and we will email you when enrollment opens — then use this guide to plan your preparation area by area.
The genetic counselor is the professional who helps patients and families understand genetic risk, choose testing wisely, and make decisions with results that can reshape a family’s future. PassProfessor’s Certified Genetic Counselor program is in development as part of the expanding PassProfessor catalog, built on ABGC’s published certification examination content outline.
Which examination is this?
This page covers the American Board of Genetic Counseling’s certification examination for the Certified Genetic Counselor (CGC) credential. The governing distinction is educational: unlike experience-route credentials, the CGC examination sits at the end of a single defined pipeline — a master’s degree in genetic counseling from an ACGC-accredited program, whose supervised clinical training is built into the degree itself. Graduates apply for Active Candidate Status, which ABGC grants for five years from graduation, and sit the examination within that window. ABGC alone grants the credential when its requirements are complete; where a state licenses genetic counselors, that licence is a separate, additional requirement resting on the same certification.
The real exam at a glance
| Fact of record | Detail |
|---|---|
| Credential | Certified Genetic Counselor (CGC) |
| Awarding body | American Board of Genetic Counseling (ABGC) |
| Examination | 200 multiple-choice questions — 170 scored items and 30 pretest items — delivered by computer at Prometric testing centers |
| Time | 4 hours |
| Examination windows | Published February and August examination windows, as ABGC publishes the schedule |
| Scoring | Candidates must receive a passing score on the examination, as ABGC publishes it; ABGC sets the passing standard for the examination and these pages state no converted percentage |
| Content | The ABGC certification examination content outline, derived from ABGC’s most recent practice analysis (see outline below) |
| Eligibility | A master’s degree in genetic counseling from a program accredited by the Accreditation Council for Genetic Counseling (ACGC) is the primary qualification, as ABGC publishes it; ABGC also publishes a category for internationally trained genetic counselors |
| Certification period | ABGC certification is valid for five years; diplomates then recertify through continuing education or by taking the examination, as ABGC publishes the routes |
Who can take Certified Genetic Counselor (CGC), and what does it certify?
As ABGC publishes it, the primary qualification to sit for the certification examination is a master’s degree in genetic counseling from a program accredited by the Accreditation Council for Genetic Counseling (ACGC). The supervised clinical training ABGC expects is embedded in those accredited programs, so there is no separate post-degree experience route for standard applicants. Graduates of ACGC-accredited programs are eligible for Active Candidate Status (ACS) for five years from graduation; first-time and repeat examinees sit within the categories ABGC publishes, in the February and August examination windows. ABGC also publishes an examination category for internationally trained genetic counselors holding certification from a recognised international body. Certification is valid for five years; diplomates recertify through continuing education or by taking the examination. Confirm your category and window in ABGC’s current Candidate Guide before applying — ABGC sets, and periodically revises, these requirements.
The outline, area by area
| Content area | Share of the examination |
|---|---|
| Genetics and Genomics Concepts | Content area of ABGC’s published outline |
| Risk Assessment and Calculation | Content area of ABGC’s published outline |
| Genetic Testing and Interpretation | Content area of ABGC’s published outline |
| Counseling and Communication | Content area of ABGC’s published outline |
| Clinical Practice and Care Coordination | Content area of ABGC’s published outline |
| Professional Practice, Ethics, and Resources | Content area of ABGC’s published outline |
What does Genetics and Genomics Concepts cover? (Content area of ABGC’s published outline)
The scientific foundation: inheritance patterns, molecular and cytogenetic principles, genetic variation, genomic technologies, and the interpretation of genetic information at the level of the gene, the genome and the population. Items ask the candidate to reason from a pedigree, a variant or a laboratory method to its genetic meaning.
How should you prepare for Genetics and Genomics Concepts? Survey the area early, note where your reasoning breaks down, and return with focused practice rather than rereading. The work here rewards applied judgment in realistic situations, so pair every block of reading with timed practice, then examine why each wrong option was wrong. Keep a running list of the distinctions this area tests most finely, and revisit the area in mixed practice before you test, so competence does not depend on knowing the topic in advance.
Reason from mechanism: inheritance pattern and molecular consequence together predict most genetics items before the options are read.
What separates strong candidates in Genetics and Genomics Concepts? Depth shows as discrimination: the strong candidate separates the option that is merely plausible from the option the facts of the case actually support, and can say why the plausible one fails. Train that discrimination deliberately — after every practice block, write one line per miss naming the feature of the situation you underweighted. Over weeks that log becomes the most personal syllabus you own.
What does Risk Assessment and Calculation cover? (Content area of ABGC’s published outline)
Quantifying genetic risk: pedigree analysis, Bayesian and conditional probability, empiric risks, recurrence risks for Mendelian and complex conditions, and the communication of numerical risk. Items give a family structure and ask for the figure — or for what additional information would change it.
How should you prepare for Risk Assessment and Calculation? Start with the area’s core decisions and work outward to its edge cases. Preparation should alternate short reading blocks with timed questions on the same material, because retrieval under time pressure is the skill the sitting itself demands. Log every miss by cause — knowledge gap, misread situation, or wrong priority — since each cause has a different repair, and lumping them together hides the pattern your next study block should attack.
Risk items are pedigree arithmetic: draw the pedigree, condition on the stated facts, and only then calculate.
What separates strong candidates in Risk Assessment and Calculation? Depth shows as discrimination: the strong candidate separates the option that is merely plausible from the option the facts of the case actually support, and can say why the plausible one fails. Train that discrimination deliberately — after every practice block, write one line per miss naming the feature of the situation you underweighted. Over weeks that log becomes the most personal syllabus you own.
What does Genetic Testing and Interpretation cover? (Content area of ABGC’s published outline)
Choosing and interpreting testing: test selection and methodology, indications and limitations, variant classification, results interpretation including variants of uncertain significance, incidental findings, and the integration of results into care. Items present a clinical question and ask which test answers it — or what a returned result does and does not establish.
How should you prepare for Genetic Testing and Interpretation? Treat this area as a set of decisions, not a set of facts: for each topic, ask what the practitioner must notice first, what must happen next, and what must never happen. Practise in timed blocks, review every error the same day, and return to the area after a gap of several days so that retention, not recognition, is what carries you.
Testing items turn on fit between question and method: the right test is the one whose scope and limitations match the clinical question asked.
What separates strong candidates in Genetic Testing and Interpretation? Depth shows as discrimination: the strong candidate separates the option that is merely plausible from the option the facts of the case actually support, and can say why the plausible one fails. Train that discrimination deliberately — after every practice block, write one line per miss naming the feature of the situation you underweighted. Over weeks that log becomes the most personal syllabus you own.
What does Counseling and Communication cover? (Content area of ABGC’s published outline)
The counselling encounter itself: psychosocial assessment, counselling theories and techniques, facilitating informed decision-making, communicating risk and results, supporting adaptation, and working with families across cultures and circumstances. Items present a session moment and ask for the response that informs without directing.
How should you prepare for Counseling and Communication? Build a one-page map of this area before drilling it: its central concepts, its recurring traps, and the situations in which its rules change. Then work timed practice against that map, correcting the map whenever a question exposes a gap in it. Finish the area with mixed practice alongside earlier areas, so the knowledge has to be selected, not merely recalled.
Counseling items protect autonomy: the strongest option informs, explores and supports — options that decide for the patient fail the profession’s core test.
What separates strong candidates in Counseling and Communication? Depth shows as discrimination: the strong candidate separates the option that is merely plausible from the option the facts of the case actually support, and can say why the plausible one fails. Train that discrimination deliberately — after every practice block, write one line per miss naming the feature of the situation you underweighted. Over weeks that log becomes the most personal syllabus you own.
What does Clinical Practice and Care Coordination cover? (Content area of ABGC’s published outline)
Genetic counselling in the care system: clinical evaluation and differential diagnosis across practice settings — prenatal, paediatric, cancer, adult and specialty care — management recommendations, referrals, and coordination with the wider care team. Items present a presentation and ask for the evaluation step, the referral, or the follow-up plan.
How should you prepare for Clinical Practice and Care Coordination? Survey the area early, note where your reasoning breaks down, and return with focused practice rather than rereading. The work here rewards applied judgment in realistic situations, so pair every block of reading with timed practice, then examine why each wrong option was wrong. Keep a running list of the distinctions this area tests most finely, and revisit the area in mixed practice before you test, so competence does not depend on knowing the topic in advance.
Practice items follow the case: history, evaluation, testing, disclosure, follow-up — find which step the stem is standing on before choosing.
What separates strong candidates in Clinical Practice and Care Coordination? Depth shows as discrimination: the strong candidate separates the option that is merely plausible from the option the facts of the case actually support, and can say why the plausible one fails. Train that discrimination deliberately — after every practice block, write one line per miss naming the feature of the situation you underweighted. Over weeks that log becomes the most personal syllabus you own.
What does Professional Practice, Ethics, and Resources cover? (Content area of ABGC’s published outline)
The profession’s framework: ethical principles and dilemmas, legal and regulatory considerations, documentation, professional standards, and the resources — registries, support organisations, literature — counsellors connect families to. Items ask what the counsellor must do, must not do, or must offer.
How should you prepare for Professional Practice, Ethics, and Resources? Start with the area’s core decisions and work outward to its edge cases. Preparation should alternate short reading blocks with timed questions on the same material, because retrieval under time pressure is the skill the sitting itself demands. Log every miss by cause — knowledge gap, misread situation, or wrong priority — since each cause has a different repair, and lumping them together hides the pattern your next study block should attack.
Ethics items rank duties: consent, confidentiality and non-directiveness constrain every otherwise-attractive option.
What separates strong candidates in Professional Practice, Ethics, and Resources? Depth shows as discrimination: the strong candidate separates the option that is merely plausible from the option the facts of the case actually support, and can say why the plausible one fails. Train that discrimination deliberately — after every practice block, write one line per miss naming the feature of the situation you underweighted. Over weeks that log becomes the most personal syllabus you own.
How is Certified Genetic Counselor (CGC) scored?
ABGC states the requirement plainly: candidates must receive a passing score on the certification examination. The standard behind that score is ABGC’s, set for the examination as ABGC publishes it in its candidate materials, and these pages state no percentage conversion for it — a figure ABGC does not publish in that form should not be invented here. What candidates can rely on structurally is this: of the 200 items, 170 are scored and 30 are pretest items being trialled for future examinations, indistinguishable from scored items, so every item must be answered on its merits across the full 4 hours. ABGC publishes its candidate guide with the current scoring and results information, and that guide governs. The practical reading for preparation: the examination’s content outline is derived from ABGC’s practice analysis of what genetic counselors actually do, so preparation should weight applied case reasoning — risk calculation, test selection, result interpretation and the counselling response — at least as heavily as factual recall, and track practice results by content area from the first week.
What does the preparation timeline look like from here?
ABGC’s published February and August examination windows give this credential a rhythm most examinations do not have: preparation can be planned backwards from a fixed window rather than toward a self-chosen date. A candidate graduating from an accredited program in spring typically looks to the August window as the first opportunity, which makes the final semester and the first post-graduation months the natural preparation arc — and makes it worth confirming Active Candidate Status and the current window’s application deadlines in ABGC’s Candidate Guide early, because a missed deadline costs a full cycle, not a few weeks. Candidates repeating the examination should plan from their score information area by area: a repeat attempt prepared the same way as the first usually reproduces the first result, so the study plan for a second sitting should be rebuilt around the areas the first sitting exposed, with the window interval used for depth in those areas rather than for a general re-read. In both cases the discipline is the same — the window is fixed, so the plan must be honest about weekly hours, and the outline’s areas, tracked separately, are how progress is verified rather than assumed.
How should a study plan be built around this outline?
Phase one — survey (the first quarter of your preparation). Work every area once, at reading-plus-practice depth, and record an honest baseline by area. The purpose is cartography, not mastery: you are learning where the examination’s weight sits and where your own thin ground lies, so that later effort is allocated by evidence rather than by preference or by the order of a textbook.
Phase two — depth (the middle half). Study area by area in weight order, largest first, alternating short reading blocks with timed practice on the same material. Review every error the same day and classify it — knowledge gap, misread situation, or wrong priority — because each cause has a different repair. Return to each finished area after a gap of several days; retention measured after a gap is the only retention that counts on examination day.
Phase three — integration (the final quarter). Mix areas in every session so knowledge must be selected, not merely recalled, and sit full timed practice at the real sitting’s length and pace. Let the results set the remaining work: the thinnest area gets the next block, every time, until no area trails materially. In the final week, consolidate — timed sittings, your error log, ordinary sleep — rather than opening new material.
A note on materials. The certifying body’s published outline and candidate materials are the syllabus and the authority on every fact of the examination; this guide is a map of that outline, not a substitute for it. Where any preparation material — including this guide — differs from the body’s current official publications, the body’s publications govern.
How should you use this guide while the program is in development?
- Join the notify list today. Enrollment is not open yet, and the notify list is how you hear the moment it is. While you wait, read the program page — it walks the outline area by area and lays out eligibility, scoring and study planning in full.
- Study from the official outline now. The published outline quoted on this page is the syllabus; organizing your reading by its areas and weights is useful work today, before any practice program opens.
- When the program opens, survey every area first. Early practice should touch each content area, so your first area-by-area picture of yourself is honest rather than flattering.
- Drill the area that costs you. Let results, not preferences, set the next block of study — outlines reward the candidate with no thin area.
- Finish with timed, mixed practice. Sit full timed practice at the real sitting’s pace, and test when your practice is consistently strong across areas.
Frequently asked questions
Can I sit the CGC exam without a genetic counseling master’s degree? As ABGC publishes it, the primary qualification is a master’s degree in genetic counseling from an ACGC-accredited program. ABGC publishes a separate category for internationally trained genetic counselors; there is no general experience-only route.
What is Active Candidate Status? ABGC’s status for graduates of ACGC-accredited programs approved to take the certification examination. As ABGC publishes it, ACS is granted for five years from graduation.
Are these the body’s actual examination questions? No. When this program opens, its questions will be original practice questions written by PassProfessor to ABGC’s published outline for this examination. We never use actual examination items, recalled items, or another provider’s material.
How long is CGC certification valid? Five years, as ABGC publishes it. Diplomates then recertify through continuing education or by taking the examination.
How many of the 200 questions are scored? 170 are scored and 30 are pretest items, as ABGC publishes the structure. Pretest items cannot be identified during the sitting and should be answered on their merits.
When will enrollment open? The program is in development. Join the notify list on this page and we will email you when enrollment opens.
Can I start preparing before enrollment opens? Yes. The published outline on this page is the syllabus: organize your reading by its areas and weights now, and work through the companion guide’s area-by-area walk. That preparation transfers directly into the program when enrollment opens.
How is this program different from the certifying body’s own materials? The body’s publications state the facts of the examination — its structure, outline and rules — and they govern. This program is preparation built on those facts: original practice questions mapped to the published outline, with results you can read area by area. It is not the body’s material and is not endorsed by the body.
What happens after I join the notify list? We email you when enrollment opens for this program. The notify list is used for that program’s enrollment notice; the guide on this site remains available to read in the meantime.
How should I divide study time across the outline? In proportion to the published weights and to your own results: begin with a survey pass across every area, then weight your blocks toward the largest areas and toward wherever your practice results are thinnest. Re-survey monthly; the allocation that was right in week one is rarely right in week six.
When should I register for the real examination? When timed, mixed practice across all areas is consistently at or above the level the published standard implies and your thinnest area no longer trails the rest materially. Registering first and preparing against a deadline works for some candidates, but the evidence of your practice results is the more reliable trigger.
What should I do in the final week? Shift from learning to performance: full timed sittings at the real examination’s pace, review of your error log rather than new material, and ordinary sleep. The final week consolidates; it does not rebuild.
Disclaimer
PassProfessor is an independent exam-preparation provider; this guide is not endorsed by, affiliated with or sponsored by American Board of Genetic Counseling (ABGC). The credential name is used in this guide as a factual reference to the certifying body’s examination. This guide is general information about examination preparation, current as of November 2026; it confers no certification or license. The credential is awarded by ABGC alone when its requirements are complete; this program confers no certification or license. The certifying body’s official publications govern if anything here differs from them.