What Is ONN-CG Certification?

What the Credential Actually Is

The Oncology Nurse Navigator-Certified Generalist, abbreviated ONN-CG, is a professional certification for registered nurses who work as navigators for people affected by cancer. It is built around the day-to-day reality of navigation: moving patients through a fragmented care system, advocating for them, connecting them with psychosocial resources, and helping the organization improve how it delivers care.

The word "Generalist" matters. The credential tests breadth across the whole navigation role rather than depth in one tumor type or one clinical specialty. That is why its content outline spans community outreach, care coordination, advocacy, survivorship, and even operations and quality improvement, topics that many bedside certifications never touch.

If you are comparing the many pages that define the term, you may also find these companion explainers useful: What Is ONN-CG?, What Does ONN-CG Stand For?, and ONN-CG Meaning. This article focuses on how the certification works in practice.

Who Issues It and Which Credential This Is

The certification is administered by AONN Foundation for Learning, Inc., branded as the AONN+ Foundation for Learning (AONN+ FFL), the education and credentialing arm connected to the Academy of Oncology Nurse & Patient Navigators.

The most reliable source documents are the 2024 ONN-CG Candidate Handbook, the live Exam Blueprint on the AONN+ FFL Nurse Navigator Certification page, and the Guide to Certification Preparation ONN-CG (2024 v2). For a broader overview, see our ONN-CG certification hub and the explainer on what a ONN-CG is.

Exam Format: 120 Questions, Three Hours, Paper and Pencil

The format is distinctive, and candidates used to computer-based testing centers should plan for it:

• Length: 120 multiple-choice questions.
• Time: three hours of testing time, which works out to roughly 90 seconds per question.
• Mode: in-person, paper and pencil. A remote or electronic route is not currently established in the sources we reviewed.
• Language: English.
• Rules: closed book, with no scheduled breaks. Individual breaks are permitted, but the timer keeps running while you are away.

Because the test is on paper, you cannot flag and return with a click; you manage that yourself by marking the booklet or your own notes within the allowed rules. Practice at the pace of 90 seconds per item, and train yourself to skip and revisit rather than stall. Our ONN-CG difficulty guide explains how the question style tends to feel.

What the questions reward

Navigation questions are typically situational. You are asked what a navigator should do first, which resource fits a patient's barrier, or which action falls inside the navigator's role versus another team member's. Success depends less on memorizing oncology pathophysiology and more on understanding navigation scope, the sequence of coordination steps, and how to prioritize competing needs.

Eligibility: Who Can Sit for the Exam

AONN+ FFL sets a clear experience bar. A candidate must show:

1. An active RN license in good standing.
2. Current employment in navigation and at least three years of direct navigation experience.
3. 15 navigation-related continuing education credits earned in the preceding 12 months, with no more than five coming from Tumor Board attendance.
4. A curriculum vitae.
5. The current employer job description.
6. An employer-signed reference.

A BSN is not required, which opens the door to experienced nurses regardless of degree path. The three-year direct-experience requirement is the part that most often decides timing, so start gathering your documents early. A fuller walk-through lives in our ONN-CG requirements guide.

The Eight Weighted Exam Domains

The official blueprint divides the exam into eight domains whose weights add up to 100%. These are exam objectives, not just study headings, which means the percentages tell you how heavily each area is likely to appear. Read the detailed breakdown in our complete guide to all eight domains.

One small naming quirk: the 2024 preparation guide labels this domain "Psychosocial Distress Services/Assessment," while the live blueprint and the candidate handbook use "Psychosocial Support Services/Assessment." The weight is 10% either way, so do not be thrown if you see both labels in different documents.

The smaller domains still count

Survivorship/End of Life (13%) combines two ends of the cancer continuum, so prepare for both survivorship care planning and palliative and end-of-life topics. Community Outreach/Prevention (9%), Professional Roles and Responsibilities (8%), Quality and Performance Improvement (7%), and Operations Management (5%) together make up nearly 30% of the exam. Candidates who work mainly at the bedside often underestimate the quality and operations material because they rarely handle it in their own role.

Fees, Deadlines and Retake Rules

Two details trip people up. First, membership in a Local Navigator Network alone does not qualify you for the discounted fee; the lower price requires AONN+ National Membership. Second, the results window is not instant. The handbook allows up to 45 business days, though one conference announcement for the 2026 session cites six weeks. Plan around the longer figure if a job decision depends on your result. For a full breakdown, see our ONN-CG certification cost guide.

A numerical passing threshold and a pass rate were not verified in the sources we reviewed, so we do not state one here. Our pages on the passing score and pass rate explain what is and is not publicly documented.

Reading the Scheduling Information Carefully

Because testing is in person, sessions are tied to specific events and dates. The official application page still displayed November 2025 sessions and an October 10, 2025 deadline when we checked it. A newer 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.

Staying Certified: The Three-Year Cycle

Certification lasts three years. To renew, you must:

• Complete 45 continuing education credits over the 36-month period
• Maintain RN good standing
• Submit an updated CV, a signed recommendation, and your job description
• Pay the renewal fee

Who Benefits From Holding It

The credential is aimed at nurses employed in navigation roles, so the people who tend to value it are those working in cancer centers, hospital oncology service lines, community oncology practices, and health systems building navigation programs. Employers in those settings use certification as a way to show that a navigator has documented experience and has been tested on the full scope of the role. Because eligibility requires current navigation employment, the certification functions less as a way to break into the field and more as a way to formalize and advance your standing once you are in it.

Whether it pays off for you depends on your employer, your market, and your career plans. We address that directly in our ROI analysis, and our ONN-CG jobs and salary guide pages cover the employment side. We avoid quoting salary figures here because no verified numbers were established for this credential specifically.

Sequencing Your Preparation by Domain Weight

You do not need an elaborate method. The blueprint gives you a natural order: spend the most time where the exam spends the most questions. Here is one way to map a six-week plan to the weights, and our study guide expands on it.

For a quick reference sheet to review the night before, see the ONN-CG cheat sheet, and for structured resources see ONN-CG training. When you are ready to test yourself under realistic conditions, try the full-length ONN-CG practice exam.

Frequently Asked Questions