ONN-CG Requirements 2026: Eligibility, Prerequisites & How to Qualify

What the ONN-CG Credential Actually Is

The Oncology Nurse Navigator-Certified Generalist (ONN-CG) is a certification issued by the AONN+ Foundation for Learning (AONN+ FFL), the education arm of the Academy of Oncology Nurse & Patient Navigators. It is designed for registered nurses who work as oncology navigators and want a formal, third-party validation of their navigation practice across the cancer continuum.

Because several credentials in oncology nursing sound alike, it is worth being precise. This article covers only the Oncology Nurse Navigator-Certified Generalist from AONN+ FFL. It is not the patient-navigator (OPN-CG) credential, not the ONN-CG(T) thoracic variant, and not the Oncology Certified Nurse (OCN) offered by ONCC. If you are still orienting yourself, our explainers on what ONN-CG is and what ONN-CG stands for cover the naming and scope in more detail.

The credential is built around the daily work of navigation rather than bedside clinical procedures. That is why the eligibility rules lean heavily on documented navigation employment and navigation-specific continuing education instead of a particular degree.

The Core Eligibility Checklist

The requirements fall into a short list of non-negotiables. Every one of them must be satisfied and documented before your application can move forward.

Notice what is absent: there is no mandatory academic degree beyond what your RN license already represents, and no requirement to hold another oncology certification first. The gatekeeping is about licensure, current practice and documented time in the role.

Navigation Experience: What Counts and How to Document It

The three-year threshold

The experience requirement is three years of direct navigation experience. The word "direct" matters. A nurse who spent three years in oncology infusion nursing and recently moved into a navigation title does not automatically meet the bar. Your CV and job description need to show that navigation functions made up the substance of your work.

What strong documentation looks like

Reviewers are reading your CV and your employer's job description side by side, so they should tell a consistent story. Strong documentation tends to show:

• Patient-facing navigation duties such as coordinating appointments, referrals and treatment transitions
• Barrier identification and resolution, including financial, transportation and communication barriers
• Collaboration with multidisciplinary teams, including participation in Tumor Board where applicable
• Patient education and advocacy responsibilities written into the role itself
• Start and end dates for each navigation position, with no unexplained gaps

If your title says "nurse navigator" but your job description reads like a scheduling or utilization role, ask your manager to update the description to reflect what you actually do before you apply. A mismatch between title and described duties is one of the easiest ways to create avoidable friction.

The employer-signed reference

The reference must be signed by your employer, so plan for the human side of this requirement. Give your manager notice, share the credential's purpose, and allow time. Candidates who ask for a signature the week before an application deadline often discover that the one person who must sign is on leave.

The 15-CE Requirement and the Tumor Board Cap

You must show 15 navigation-related continuing education credits earned in the 12 months before you apply. Two details deserve attention.

1. The window is rolling and recent. Credits from three years ago do not count toward the 15. Start tracking CEs well before you plan to apply.
2. Tumor Board attendance is capped at five CEs. If you attend Tumor Board regularly, it helps, but you cannot reach 15 with Tumor Board alone. At least ten credits must come from other navigation-relevant education.

Building Your Application Packet

Think of the application as a packet you assemble over several weeks rather than a form you fill out in one sitting. The components are:

• Proof of active RN licensure in good standing
• Documentation of at least three years of direct navigation experience
• Evidence of 15 navigation CEs from the preceding 12 months, with Tumor Board credits counted no higher than five
• A current CV
• Your current employer job description
• An employer-signed reference
• Payment of the initial examination fee

Timing rules

The candidate handbook requires you to apply at least 30 days before an approved examination date. In addition, individual testing sessions carry their own application deadlines, which can fall earlier than the 30-day minimum. Always treat the session-specific deadline as the one that governs, and read the dates against our guide to testing windows, deadlines and scheduling.

Fees and Membership Mechanics

The initial examination fee depends on your membership status with AONN+.

The difference between member and non-member pricing is large relative to the total, so it is worth confirming your status before you pay. For a broader look at what the whole path costs, including renewal, see our complete pricing breakdown.

Exam Format and Delivery

Eligibility is only meaningful if you know what you are qualifying for. The ONN-CG examination is administered in person as a paper-and-pencil test in English. The sources reviewed do not establish a remote or electronic route, so plan on traveling to a designated testing session.

• Questions: 120 multiple-choice items
• Time: three hours
• Reference materials: closed-book
• Breaks: none scheduled; individual breaks are permitted but the timer keeps running

That works out to roughly 90 seconds per question, which is workable for scenario-style navigation items but leaves little slack for long deliberation. Because there are no scheduled breaks and the clock does not stop for personal breaks, candidates should treat stamina and pacing as part of readiness. A numerical passing threshold and pass rate have not been verified, so we do not assert one here; see our passing-score discussion and what the data shows on pass rates for how to think about that uncertainty.

The 2026 Testing Session and Deadline Reality

This is the section where careless planning causes real problems, so read it closely.

The official application page has at times continued to display older sessions, including November 2025 testing and an October 10, 2025 deadline. A newer official 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. That announcement gives an October 1, 2026 application deadline and states there is no onsite registration.

The lesson for future cycles is simple: because the 30-day handbook minimum and the session deadline both apply, and because the eligibility packet needs an employer signature, you should begin assembling documents many weeks, ideally a few months, ahead of any announced session. Results timing is also worth knowing: the handbook allows up to 45 business days, while the 2026 conference announcement describes six weeks for that session.

Matching Your Experience to the Eight Exam Domains

Meeting the requirements gets you in the room. Passing depends on how your real-world navigation experience maps onto the eight weighted exam domains. These are official exam objectives totaling 100%, and they are useful as a self-assessment tool before you even submit your application.

Together those two domains account for 48% of the exam, so strong day-to-day coordination and advocacy experience is a genuine advantage. The smaller domains are where nurses with narrow experience tend to find gaps. If your role has been purely clinical-coordination focused, you may have little exposure to Operations Management (5%), Quality and Performance Improvement (7%), or Community Outreach/Prevention (9%).

A note on naming: an earlier preparation guide labels the psychosocial domain "Psychosocial Distress Services/Assessment," while the live blueprint and candidate handbook use Psychosocial Support Services/Assessment. It is the same 10% domain; use the retained name when searching for resources. Once your eligibility is settled, move on to the study guide for passing on your first attempt, and when you are ready to test your recall, try the ONN-CG practice tests.

A short, domain-driven prep sequence

If you are still gathering eligibility documents, you can use that waiting period productively by sequencing study around the blueprint rather than around a generic calendar.

Retests, Certification Length and Renewal

If you do not pass

Unsuccessful candidates must wait at least six months before retesting and pay USD 45 for the next attempt. That six-month wait is a real scheduling cost, which is one reason thorough preparation before the first sitting pays off. For a realistic sense of the challenge, see how hard the ONN-CG exam is.

Keeping the credential

Certification lasts three years. Renewal requires:

• 45 CEs earned over the 36-month cycle
• Continuing RN good standing
• An updated CV
• A signed recommendation
• A current job description
• Payment of the renewal fee

If you are weighing whether the long-term commitment makes sense for your career, our analyses of whether the certification is worth it and the salary picture can help frame the decision.

Frequently Asked Questions