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What Is A ONN-CG?

TL;DR
  • ONN-CG means Oncology Nurse Navigator-Certified Generalist, issued by the AONN+ Foundation for Learning.
  • The exam is in-person, paper-and-pencil: 120 multiple-choice questions in three hours, closed-book.
  • Candidates need an active RN license and at least three years of direct navigation experience.
  • Coordination of Care/Care Transitions (27%) and Patient Advocacy/Patient Empowerment (21%) make up nearly half the blueprint.

The Short Answer: What an ONN-CG Is

An ONN-CG is a registered nurse who holds the Oncology Nurse Navigator-Certified Generalist credential. It is a professional certification for nurses whose daily work is guiding patients and families through the cancer care system: scheduling, coordinating between specialties, removing barriers, supporting decisions, and keeping people connected to care from screening through survivorship or end of life.

The word "Generalist" matters. The credential is built around the broad skill set shared by oncology nurse navigators across settings, rather than a single tumor type or a single stage of the cancer journey. A navigator in a community cancer center, a hospital-based program, or a health system outreach team can all be measured against the same blueprint.

If you want the plainest possible definition, it is a nurse-navigation certification that proves an RN has substantial hands-on navigation experience and has passed a standardized, domain-weighted exam. For related phrasing of this question, see our pages on what ONN-CG is and what ONN-CG stands for.

Who Issues It and What the Name Means

The credential is administered by the AONN+ Foundation for Learning, Inc., branded AONN+ Foundation for Learning (AONN+ FFL). Each part of the credential name carries meaning:

  • Oncology: the care context is cancer, across the continuum.
  • Nurse Navigator: the role is navigation, which is distinct from bedside nursing, case management, or social work, although it overlaps with all three.
  • Certified: the holder has met experience requirements and passed an examination.
  • Generalist: the scope is broad navigation competence, not a narrow specialty.
Be precise about the credential: The exact credential covered on this site is Oncology Nurse Navigator-Certified Generalist (ONN-CG). It is not the OPN-CG, not the ONN-CG(T), and not ONCC's OCN. Those are separate credentials with their own requirements, so details for one should never be assumed to apply to another.

For more variations on the naming question, see ONN-CG meaning and what ONN-CG certification is.

Who Can Sit for It

The ONN-CG is not an entry-level credential. It is designed for working navigators, and the eligibility rules reflect that. According to the issuer's materials, an applicant needs:

  • An active RN license in good standing.
  • Current navigation employment and at least three years of direct navigation experience.
  • 15 navigation continuing education credits earned in the preceding 12 months, with a maximum of five of those from Tumor Board attendance.
  • A curriculum vitae.
  • A current employer job description.
  • An employer-signed reference.

A BSN is not required. That distinguishes the ONN-CG from some other nursing credentials where the degree level is a gate. What the issuer cares about is licensure, sustained navigation work, and documentation that the work is real.

Documentation is part of the exam: Because the application requires a job description and an employer-signed reference, nurses whose titles do not include "navigator" should check early whether their duties will be recognized as direct navigation. Gathering paperwork takes longer than most candidates expect, and the handbook requires application at least 30 days before an approved exam date.

For a fuller checklist, read our guide to ONN-CG requirements and how to qualify.

What the Exam Looks Like on Test Day

The format is more traditional than many nurses expect.

FeatureONN-CG Detail
DeliveryIn person, paper-and-pencil
LanguageEnglish
Question count120 multiple-choice questions
Time allowedThree hours
Reference materialsClosed-book
BreaksNone scheduled; individual breaks are permitted but the timer keeps running
Remote or electronic optionNot currently established by the issuer's cited sources

Three hours for 120 questions averages out to roughly 90 seconds per item, which is workable but leaves little slack if you stall on scenario-heavy questions. Because breaks do not pause the clock, the practical approach is to settle your pacing before you walk in and avoid spending test time on any one question.

The paper format also changes habits. There is no on-screen flagging tool, so you will want a simple system for marking questions to revisit directly on the test materials, within whatever rules the proctor sets.

The issuer does not publish a verified numerical passing threshold that we can cite, and we do not assert one. For what is and is not known, see ONN-CG passing score and ONN-CG pass rate. For a realistic sense of difficulty, see how hard the ONN-CG exam is.

The Eight Weighted Domains

The exam objectives are organized into eight official domains whose weights total 100%. These are exam-objective domains, not just study headings invented by a prep provider. Here is how they break down:

DomainWeight
1. Community Outreach/Prevention9%
2. Coordination of Care/Care Transitions27%
3. Patient Advocacy/Patient Empowerment21%
4. Psychosocial Support Services/Assessment10%
5. Survivorship/End of Life13%
6. Professional Roles and Responsibilities8%
7. Operations Management5%
8. Quality and Performance Improvement7%

Two domains dominate: Coordination of Care/Care Transitions at 27% and Patient Advocacy/Patient Empowerment at 21%. Together they account for 48% of the blueprint, so nearly half your score depends on how well you understand the connective tissue of navigation.

Coordination of Care/Care Transitions (27%)

This is the heart of the role. Expect questions about moving patients between settings and teams without losing information or momentum.

  • Handoffs between diagnosis, treatment, and follow-up phases
  • Coordinating across surgical, medical, and radiation oncology and supportive services
  • Identifying and resolving gaps, delays, and barriers in the care pathway
  • Communicating across the interdisciplinary team

Patient Advocacy/Patient Empowerment (21%)

This domain tests whether you can support patients in making informed decisions and navigating a complex system.

  • Health literacy and clear communication of treatment information
  • Supporting shared decision-making and patient rights
  • Addressing financial, insurance, and access barriers
  • Helping patients voice preferences to their care team

Survivorship/End of Life (13%)

Navigation does not end when treatment does. This domain covers both ends of the post-treatment spectrum.

  • Survivorship care planning and long-term follow-up
  • Palliative and hospice transitions
  • Supporting patients and families through advanced disease

Psychosocial Support Services/Assessment (10%)

Recognizing distress and connecting patients to appropriate resources is a core navigator function.

  • Screening for psychosocial needs and distress
  • Referral to counseling, social work, and community support
  • Family and caregiver considerations

The smaller domains still matter. Community Outreach/Prevention (9%), Professional Roles and Responsibilities (8%), Quality and Performance Improvement (7%), and Operations Management (5%) collectively represent 29% of the exam, and they cover topics that many bedside-trained nurses have the least exposure to, such as program metrics and operational workflow.

A labeling quirk to know about: The issuer's 2024 preparation guide labels Domain 4 "Psychosocial Distress Services/Assessment," while the live blueprint and the candidate handbook use "Psychosocial Support Services/Assessment." All three place it at 10%. Treat them as the same domain, and use the live blueprint wording as your reference.

For a deeper walk through each content area, see our complete guide to all 8 ONN-CG exam domains.

Fees, Deadlines and Results Timing

Initial exam fee

The initial fee is USD 150 for AONN+ National Members and USD 300 for non-members. Membership in a Local Navigator Network alone does not qualify you for the discounted rate; the discount is tied to AONN+ National membership. For a full breakdown, see ONN-CG certification cost.

Application timing

The candidate handbook requires applying at least 30 days before an approved examination date, and individual sessions carry their own deadlines on top of that.

A scheduling caveat as of the last check (October 15, 2026): The issuer's Apply page still displayed November 2025 sessions and an October 10, 2025 deadline. A newer official AONN+ Annual Conference announcement lists ONN-CG testing on November 11, 2026, from 8:30 to 11:30 a.m. at the Gaylord Texan Resort & Convention Center in Grapevine, Texas, with an October 1, 2026 application deadline and no onsite registration. That deadline had already passed when we checked, so do not treat that session as open for new applications. Confirm future dates directly with the issuer, and see ONN-CG exam dates for scheduling context.

Results and retakes

  • The handbook allows up to 45 business days for results. The 2026 conference announcement gives six weeks for that particular session.
  • Unsuccessful candidates must wait at least six months and pay USD 45 for the next retest.

The relatively low retest fee is notable, but the six-month wait is a real cost in time, so a first-attempt plan is worth the effort. Our ONN-CG study guide covers how to approach that.

Why the Acronym Causes Confusion

"ONN-CG" is easy to confuse with neighboring credentials, and it is worth being careful, especially when searching for fees or dates.

  • ONN-CG (this credential) is the Generalist certification from AONN+ FFL.
  • OPN-CG is a separate credential for patient navigators, not nurse navigators.
  • ONN-CG(T) is a distinct designation and should not be treated as interchangeable.
  • OCN is certified through ONCC, a different certifying body, and measures general oncology nursing practice rather than navigation.

If a website quotes fees, dates, or pass rates, check which credential and which certifying body it is describing. For this reason we keep every fact on this page tied to the AONN+ FFL sources.

Keeping the Credential After You Pass

Certification lasts three years. Renewal generally requires:

  • 45 continuing education credits over the 36-month cycle
  • Continuing RN license in good standing
  • An updated CV
  • A signed recommendation
  • A current job description
  • Payment of the renewal fee
Unresolved renewal discrepancy: The issuer's dedicated live renewal page specifies USD 150 and a maximum of five Tumor Board CEs. The linked 2024 handbook instead specifies USD 150 for members and USD 300 for non-members, and a ten-CE Tumor Board cap. We do not silently pick a winner. Use the live page for provisional planning, but get confirmation from the issuer before relying on a specific renewal fee or Tumor Board allowance.

Because the Tumor Board cap differs between sources, the safest habit is to earn your CEs from a variety of navigation-relevant activities instead of leaning heavily on Tumor Board attendance.

Sequencing Your Preparation Around the Blueprint

You do not need a generic study system; you need a plan that follows the weights. Because Coordination of Care/Care Transitions and Patient Advocacy/Patient Empowerment represent 48% of the exam, they deserve the most repetition. The smaller operational domains are where experienced clinicians often have blind spots, so they deserve early attention too.

Weeks 1-2

Operations, Quality, and Professional Roles

  • Cover Operations Management (5%), Quality and Performance Improvement (7%), and Professional Roles and Responsibilities (8%) first, since these are the least familiar to bedside-trained nurses
  • Learn how navigation programs measure their own performance and define role boundaries
Weeks 3-5

Coordination of Care and Advocacy

  • Spend the longest block on Coordination of Care/Care Transitions (27%) and Patient Advocacy/Patient Empowerment (21%)
  • Work scenario questions about handoffs, barriers, and health literacy
Week 6

Psychosocial, Survivorship, Outreach

  • Review Psychosocial Support Services/Assessment (10%), Survivorship/End of Life (13%), and Community Outreach/Prevention (9%)
Final week

Timed paper practice

  • Practice 120 questions in three hours without references, since the real exam is closed-book and paper-based
  • Rehearse pacing at roughly 90 seconds per question

You can find a condensed reference in our ONN-CG cheat sheet, and you can test yourself with the ONN-CG practice tests on the main site. Official preparation material is also available from the issuer; its 2024 "Guide to Certification Preparation" is worth reading alongside your practice questions.

Who Hires and What the Credential Signals

ONN-CG holders typically work in cancer centers, hospital oncology programs, community oncology practices, and health system navigation teams. The credential signals to employers that a nurse has documented navigation experience, has met a CE standard, and has passed a standardized assessment. It does not automatically change a title or pay scale, and we do not quote salary figures here because they vary widely by employer and region. For more on this, see ONN-CG jobs, the ONN-CG salary guide, and our ROI analysis of the certification.

Key Takeaway

An ONN-CG is an experienced RN navigator certified by AONN+ FFL. Prepare for a closed-book, paper exam weighted heavily toward care coordination and patient advocacy, and verify every date and fee with the issuer, since published sources do not always agree.

Frequently Asked Questions

What does ONN-CG stand for?

It stands for Oncology Nurse Navigator-Certified Generalist, a certification administered by the AONN+ Foundation for Learning for registered nurses working in oncology navigation.

Do I need a BSN to sit for the exam?

No. A BSN is not required. You do need an active RN license in good standing, current navigation employment, and at least three years of direct navigation experience.

How long is the ONN-CG exam and how is it delivered?

It has 120 multiple-choice questions and a three-hour time limit. It is administered in person in a paper-and-pencil, closed-book format in English. A remote or electronic option is not currently established by the issuer's cited sources.

What happens if I do not pass?

You must wait at least six months before retesting, and the retest fee is USD 45. The issuer's materials describe the process, and we do not assert a numerical passing threshold or pass rate because none was verified.

How long does the certification last?

Three years. Renewal requires 45 CEs over 36 months, a continuing RN license in good standing, an updated CV, a signed recommendation, a job description, and payment. Confirm the renewal fee and Tumor Board CE cap with the issuer, because the live renewal page and the 2024 handbook differ.

If you are ready to see how the question style feels, try the ONN-CG practice exam and compare your results against the domain weights above. For a broader overview of the credential, you can also visit our main ONN-CG certification page.

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