Clinical Dietitian Licensing: RDN Credential and State Rules

How to get a clinical dietitian license

1. 1

   Complete a graduate degree that meets CDR's requirement

   Since January 2024, eligibility for the registration examination requires a minimum of a master's degree with coursework meeting the accreditation requirements set through ACEND. Confirm that any programme you are considering is on the accredited list before enrolling — this is not a requirement you can retrofit afterwards.

2. 2

   Complete an ACEND-accredited supervised practice programme

   Finish a dietetic internship or coordinated programme covering clinical, community and food-service rotations under registered dietitians. Placements are competitive, and the matching process is the single most common cause of delay in this career path, so apply broadly and early.

3. 3

   Pass the CDR registration examination

   Once CDR verifies your eligibility, sit the computer-adaptive registration examination at a Pearson VUE centre. It covers principles of dietetics, nutrition care for individuals and groups, management of food and nutrition programmes, and food-service systems, and is scored against CDR's pass standard of 25 rather than a percentage.

4. 4

   Obtain your state credential

   Apply to your state board for the licence, certification or registration it issues, submitting verification of your RDN credential, a background check and the fee. Establish first which regime your state operates — licensure restricting practice, title certification, or no regulation — because it determines what you may legally do and call yourself.

5. 5

   Maintain both credentials

   Keep the RDN active through CDR's five-year professional development portfolio, planning and documenting continuing professional education units against your own learning plan. Renew the state credential on its separate cycle, and consider a board specialist certification in renal, oncology, paediatric or nutrition-support practice as you specialise.

Clinical Dietitian license requirements

The national credential and the state credential have different requirements, and you generally need both. To practise as a clinical dietitian you need:

How much a clinical dietitian license costs

The education and internship dominate; the credential fees themselves are modest. The lines to budget for:

The clinical dietitian license exam

The CDR registration examination for dietitians is a computer-adaptive test delivered at Pearson VUE centres. It covers four domains: principles of dietetics; nutrition care for individuals and groups, which is the largest and follows the assessment, diagnosis, intervention, monitoring and evaluation model; management of food and nutrition programmes and services; and food-service systems. It is scored on CDR's own scale with 25 required to pass, so it is a competency standard rather than a percentage, and eligibility to sit it is verified by CDR after your degree and supervised practice are complete. It is closed book. States that license dietitians almost always accept a passing result and the RDN credential rather than administering an examination of their own.

How long it takes to get licensed

Six to seven years from starting an undergraduate degree is realistic under the current graduate-degree requirement, with the competitive supervised-practice placement often the step that determines the timeline.

Clinical Dietitian license types: the full ladder

Dietetics has a clear progression built on the RDN credential, with technician-level registration below it and board specialist certifications above.

RDN credential vs State licence: clinical dietitian license

Clinical Dietitian license reciprocity between states

The RDN credential is national and moves with you, which removes most of the friction from relocating. What does not transfer is the state credential: a dietitian licensed in one state must apply separately in the next, and because states regulate in different ways — licensure, certification, registration or not at all — the process differs rather than simply repeating. Most licensing states grant licensure on the basis of an active RDN credential without further examination, which makes the application administrative rather than substantive. Confirm the destination state's requirement and whether any supervised-practice or jurisprudence element applies before you move.

Clinical Dietitiansalary & job outlook

Dietitians and nutritionists earn a median of about $76,400 per year ($36.73/hour), with clinical roles in acute care, renal and nutrition-support practice — particularly those holding board specialist certifications — earning above the median. Employment is projected to grow 5.5%, with roughly 6,200 openings a year. See the full clinical dietitian salary guide for pay by state, city and experience level.

Clinical Dietitian license requirements by state

The critical variable here is not the exam but the form of state regulation: licensure, certification, registration, or none at all. That determines whether unlicensed practice is possible in your state and what you may call yourself.

States regulate dietitians in three different ways, and a small number do not regulate at all. Licensure states restrict the practice of dietetics; certification and registration states typically protect only the title. Where no authority is named, that state has no dietitian regulation and the RDN credential is the operative professional standard. Because several states have changed their approach in recent years, confirm with the state board before practising.

Browse all state guides

Clinical Dietitian license FAQs

Commission on Dietetic Registration (CDR) · ACEND, Accreditation Council for Education in Nutrition and Dietetics · U.S. Bureau of Labor Statistics, OEWS May 2025 (29-1031) · BLS Occupational Outlook Handbook (Dietitians and Nutritionists). Requirements and fees are set per state and change, confirm with your state board before applying.

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