CSG Certification

What the CSG Credential Actually Is

CSG stands for Certified Specialist in Gerontological Nutrition. The Commission on Dietetic Registration (CDR), the credentialing arm of the Academy of Nutrition and Dietetics, issues it, and CDR also describes the credential as Board Certified Specialist in Gerontological Nutrition. It is a specialty layer on top of the Registered Dietitian credential, not a replacement for it. If you want the plain-language definition first, our explainers on what CSG certification is and what CSG stands for cover the basics.

The exam is built to test whether an RD can function at an advanced level with older adults: assessing nutritional status across settings, selecting and adjusting interventions, and managing the foodservice and food safety side of care for aging populations. That combination of clinical judgment and operational knowledge is what separates it from a general dietetics exam.

Who Qualifies to Sit for the Exam

CDR sets two core eligibility conditions, and both must be met by the examination date. For the full application walkthrough, see our guide to CSG requirements and how to qualify.

• Current RD status for at least two years. You must hold active Registered Dietitian status and have held it for a minimum of two years as of the exam date.
• 2,000 verified hours of specialty practice. These must be gerontological-nutrition hours worked as an RD during the five years preceding your application.

CDR allows approved education or professional substitutions to cover up to 800 of those hours. That provision matters for dietitians whose roles were mixed, such as a clinician who split time between adult medicine and long-term care. If your documented hours fall short, check whether any of your qualifying education or professional activity can fill the gap before assuming you must wait another year.

How the Exam Is Built and Delivered

The exam is computer-based and delivered at Pearson VUE test centers, which offer year-round testing. One wrinkle: the exam content outline still carries PSI branding, while the current CDR Specialist Certification Candidate Handbook 2026-2027 identifies Pearson as the provider. Treat the handbook as the authority for testing-provider and exam-day policies. Scheduling windows are covered in our CSG exam dates and scheduling guide.

The "one best answer" wording is the key to the question style. Several options will often be defensible in isolation, and you are asked to pick the most appropriate action for the scenario given. The 25 pretest items are indistinguishable from scored ones, so you cannot safely coast on any question. For a full cost picture beyond the exam fee, see the CSG certification cost breakdown.

The Three Domains and Their Item Counts

The CDR Examination Content Outline (copyright 2024) defines three domains and allocates scored items to each. CDR publishes these as item counts, not percentage weights, so avoid any study resource that presents converted percentages as official. A deeper treatment lives in our complete guide to the three CSG content areas.

The exact subtopics and task statements are in the official outline, so read it directly rather than relying on a summary. CDR also publishes a reference list for the exam. It is a reading list, not a blueprint, and some listed texts are paid, so verify what you can access before building a plan around it. Our CSG cheat sheet condenses the must-know facts for last-pass review.

What the Published Pass Data Shows

For January through June 2026, CDR reports 90% overall passing, which is 64 of 71 examinees. First-time examinees passed at 87%, which is 41 of 47. Those are the figures to quote, and the sample sizes are small, so treat them as a snapshot rather than a stable long-run rate. We analyze them further in our CSG pass rate article.

How passing is determined also matters for how you think about the exam. CDR uses Angoff standard setting and statistical equating to account for differences in form difficulty. There is no fixed percentage of candidates who pass, and no published raw passing percentage you can aim for. Anyone quoting you a precise "you need X% correct" number is guessing. Our passing score guide explains what is and is not known, and how hard the CSG exam is puts the pass data in perspective.

Test-Day Mechanics Worth Knowing

A few handbook rules shape how you should practice, so rehearse them in advance.

1. You must answer before you advance. The current question has to be answered before moving on, which changes how you handle uncertainty. Make a best-guess selection rather than planning to skip and return.
2. Breaks do not pause the clock. Ordinary unscheduled breaks do not stop the timer, so every minute away from the screen is a minute of your three hours.
3. Closed book with an on-screen calculator. Personal calculators are prohibited. Practice any calculations you expect, such as energy and fluid estimates, using a basic on-screen tool.
4. Retake rules. Retesting normally requires reauthorization and a 60-day wait, so a failed attempt costs time as well as another fee.

The three-hour limit across 150 questions works out to a little over a minute per item, which is workable for most candidates but leaves little room for long deliberation on any single scenario. Timed practice sets on the CSG practice test site are a good way to build that pacing.

Sequencing Your Prep Around the Domains

Rather than a generic schedule, let the item counts drive your timeline. Assessment carries the most scored items and also feeds the logic of the interventions domain, so it belongs first and gets the most hours. Our CSG study guide goes deeper; here is a compact sequencing model.

The pass statistics suggest this is a population of experienced practitioners, but experience in one setting does not guarantee coverage of the whole outline. A long-term care RD may be strong on interventions yet rusty on foodservice regulation, while a hospital-based RD may be the reverse. Use early practice results to decide where to shift hours.

Five-Year Validity and Recertification

The credential is valid for five years. Renewal is not a continuing-education exercise. To recertify, you must hold current RD status, submit a new eligibility application that includes the applicable specialty-practice hours, pay the examination fee, and pass another specialist examination. Continuing education alone does not renew CSG. CDR's recertification page is the authoritative source on current procedures.

Where the Credential Fits in Practice

Gerontological nutrition specialists work wherever older adults receive care or services: skilled nursing and long-term care, assisted living, hospitals with geriatric units, home health and community programs, senior nutrition services, and consulting. The foodservice domain on the exam reflects that many of these roles involve operational responsibility, not just individual patient counseling. Browse our overview of CSG jobs for the kinds of roles that value the credential.

We deliberately avoid quoting a salary figure here because no verified number is available to us for this credential specifically. If compensation is central to your decision, read our CSG salary guide and weigh it alongside the worth-it analysis, factoring in the exam fee, study time, and the practice-hour requirements you must already have met.

Frequently Asked Questions