Connecticut's Certified Dietitian-Nutritionist Credential

Connecticut certifies dietitian-nutritionists. The Department of Public Health issues the certificate under Connecticut General Statutes chapter 384b, sections 20-206m to 20-206t. It is a title credential with real teeth: the protected Connecticut titles cannot be used without it, and violating that rule is a class D felony.

What does the Connecticut certificate protect?

Section 20-206p says no one who is not certified may represent themselves as certified or use the terms "Connecticut Certified Dietitian-Nutritionist," "Connecticut Certified Dietitian," "Connecticut Certified Nutritionist," or the letters "C.D.-N.," "C.D." or "C.N.," or anything implying certification as a dietitian-nutritionist in Connecticut. Violating the section, or obtaining certification through willful or fraudulent misrepresentation, is a class D felony. Renewing late does not count as a violation.

The practice itself is open. Section 20-206t says the chapter does not prohibit "a person who does not hold himself out to be a Connecticut certified dietitian-nutritionist, Connecticut certified dietitian or Connecticut certified nutritionist from engaging in dietetics or nutrition practice." It also protects people who market food or supplements and share related information, weight control services, other licensed or certified professionals, federal and WIC nutritionists, students, and CDR-registered dietetic technicians working under supervision.

So an out-of-state RDN can serve Connecticut clients without the certificate, provided they do not present themselves as Connecticut certified. Whether an employer, facility or payer requires the certificate is a separate question. The Academy of Nutrition and Dietetics' March 2026 telehealth chart notes that Connecticut's telehealth law refers to licensed providers but appears to include certified dietitian-nutritionists. Medicare's medical nutrition therapy rule looks to licensure or certification "by the State in which the services are performed" where a state provides one (42 CFR 410.134). See Medicare MNT and dietitian licensure.

How does an RDN get certified?

Section 20-206n lets the Department issue the certificate, on receipt of an application and a $190 fee, to an applicant who shows that they are "certified as a registered dietitian by the Commission on Dietetic Registration," or who passed a written exam the commissioner prescribes and holds a qualifying master's or doctorate focused on human nutrition or dietetics. That second route is how nutritionists without the RD qualify.

The Department will not issue a certificate to an applicant "against whom a professional disciplinary action is pending or who is the subject of an unresolved professional complaint." Anyone with a criminal conviction may ask the commissioner in advance whether it disqualifies them; the Department may charge up to $15 for that review and must answer within 30 days (20-206n(c)).

Is there a route without the exam for out-of-state dietitians?

Yes. Section 20-206o lets the Department certify without examination anyone with "proof of current licensure or certification as a dietitian or nutritionist in another state, the District of Columbia, or territory" whose standards the Department finds equal to or higher than Connecticut's. The fee is also $190, and the same bar on pending discipline and unresolved complaints applies. For an RDN, the CDR route under 20-206n is usually the more direct one. See license by endorsement.

Can a certified dietitian-nutritionist write diet orders?

Yes, in institutions. Section 20-206q lets a certified dietitian-nutritionist write an order for a patient diet, including a therapeutic diet for a patient in an institution as defined in section 19a-490, in the patient's medical record. Nurses and physician assistants act on the order "with the same authority as if the order were received directly from a physician or an advanced practice registered nurse." For hospital and long-term care dietitians, that authority is a practical reason to hold the certificate.

When does the certificate renew?

Every year. Certificates "shall be renewed annually," subject to Connecticut's general renewal statute, section 19a-88, with a $105 renewal fee (20-206r). That annual rhythm differs from many states' two-year cycles, so put it on its own line in your renewal calendar. Our post on keeping several dietitian renewals on one calendar can help.

Is Connecticut in the Dietitian Compact?

No. Connecticut has not enacted the compact, and no state issues compact privileges yet. See which states have joined.

How can we help with Connecticut certification?

Our License by Endorsement (RDN) service, $599 per state, prepares the Department of Public Health application for your review with your CDR registration documented, prepares any conviction predetermination request first if you need one, and tracks the file. Annual Renewal & CE Compliance, $299 per license, per year, keeps the yearly renewal on your calendar. You sign, pay the Department and submit. State fees are separate. The Connecticut state page has the summary.