The CNS Credential and State Licensure

The Certified Nutrition Specialist (CNS) is awarded by the Board for Certification of Nutrition Specialists. Like the RD from the Commission on Dietetic Registration, it is a private certification. Neither one is a state license. Illinois's statute captures the distinction neatly: using "an earned, federally trademarked nutrition credential is not prohibited, but such use does not give an individual the right to practice dietetics or nutrition or provide medical nutrition therapy unless the individual is licensed under this Act" (225 ILCS 30/80(c)).

So the useful question for a CNS is how each state's licensing law treats the credential. In some states it shortens the path to a license. In others it does nothing at all.

How do states define the CNS?

When a statute mentions the credential, it usually names the certifying body. Illinois defines a "certified nutrition specialist" as "an individual credentialed by the Board for Certification of Nutrition Specialists that authorizes the individual to use the title 'certified nutrition specialist' and the abbreviation 'C.N.S.'" (225 ILCS 30/10). Florida refers to the same body as the "Certification Board for Nutrition Specialists" and gives a certified individual "the right to use the title 'Certified Nutrition Specialist' and the designation 'CNS'" (Fla. Stat. 468.505(4)). That title right is narrow: it lets you call yourself a CNS. It does not, by itself, let you practice where the state requires a license.

Where does the CNS shorten the path to a license?

As an exam waiver

• Florida. The board "shall waive the examination requirement" for a CNS certified by the board's named certifier who meets the other qualifications, including a qualifying degree, 900 hours of preprofessional experience and background screening (Fla. Stat. 468.509).
• Illinois. The Department must establish by rule an exam waiver for applicants "acknowledged to be certified nutrition specialists," as well as ACBN diplomates and registered dietitians (225 ILCS 30/45(b)).

As an approved exam

• Pennsylvania. The State Board of Nursing approves the CDR registration exam and the "Examination of the Certification Board for Nutrition Specialists" for the LDN license (49 Pa. Code 21.722(b)).
• New York. The Certified Nutrition Specialist exam satisfies the exam requirement for the state's certified dietitian/certified nutritionist title, according to the Office of the Professions.
• Montana. A licensed nutritionist must pass "the certified nutrition specialist examination administered by the board for certification of nutrition specialists or its successor organization" or an approved equivalent, after a graduate degree and 1,000 supervised hours (Mont. Code 37-25-310(2)).

As credit when you return to practice

Pennsylvania's inactive-status rule is a small but useful example. An LDN who has been inactive for five consecutive years must satisfy the exam requirement again, unless the person holds an active license in another state "or has had an RD registration or a CNS certification for at least 2 out of the last 5 years" (49 Pa. Code 21.725). Keeping the CNS current can save a retest.

Where does the CNS not change anything?

In states whose licensing route runs only through CDR registration, the CNS will not substitute. Montana's dietitian license, for example, requires proof of current CDR registration (Mont. Code 37-25-310(1)), even though its separate nutritionist license accepts the CNS exam. Texas's dietitian license requires the CDR registration exam and the Texas jurisprudence exam, according to the Texas Department of Licensing and Regulation, though Texas protects only the "licensed dietitian" title and does not require a license to practice dietetics.

Check each state's statute rather than assuming. The same credential can be a full route in Florida, a partial one in Montana and irrelevant elsewhere.

Does Medicare recognize a CNS?

Medicare's rule does not name the CNS. For Part B medical nutrition therapy, the provider must be a "registered dietitian or nutrition professional," defined by degree, at least 900 hours of supervised dietetics practice, and licensure or certification "as a dietitian or nutrition professional by the State in which the services are performed" (42 CFR 410.134). So the state license, not the private credential, does the work. Where a CNS can hold a state license as a nutrition professional, Medicare's licensure condition can be met in that state; the degree and supervised practice conditions still apply. Payer enrollment is its own process. Our post on Medicare MNT and licensure covers the details, and our sister site explains Medicare enrollment through PECOS.

Can a CNS use the Dietitian Compact?

Plan as if not. No state issues compact privileges yet, and CDR's compact page describes eligibility as being a registered dietitian with an active, unencumbered home-state license in a member state. See who qualifies for the compact.

What should a CNS do before taking clients in a new state?

1. Find the client's state. Licensing follows the client's location, including for telehealth.
2. Read that state's practice restriction. Florida restricts nutrition counseling for pay; Illinois restricts medical nutrition therapy; Montana restricts medical nutrition therapy. Our post on MNT and scope of practice compares them.
3. See whether the state names the CNS. If it does, the CNS may waive or replace the exam; if not, the state may have no route for you.
4. Keep the CNS current. Pennsylvania's reactivation rule shows that a lapse can cost more than the credential itself.

Our overview of which states license non-RD nutritionists covers Kentucky and Washington, which certify nutritionists on graduate-degree routes.

How can we help a CNS get licensed?

Start with the Dietitian Licensing Readiness Review ($149): we map each state where you have or want clients and say whether your CNS opens a route there. For states that do, the Full State License Application service ($749 per state) prepares the packet and tracks it with the board. You review and sign each application, pay the board and submit it. State fees are separate. See the state license index for each state's credential.