Vermont is a Certification State, and the law certifies dietitians.
§ 3382. Prohibition; penalty
(a) No person shall use in connection with the person’s name any letters, words, or insignia indicating or implying that the person is a certified dietitian unless the person is certified in accordance with this chapter.
(b) A person who violates this section shall be subject to the penalties provided in 3 V.S.A. § 127(c). (Added 1993, No. 103, § 1; amended 2007, No. 29, § 52.)
EXEMPTIONS:
While Vermont certifies dietitians and protects the title, holistic nutrition professionals may work within their scope of practice.
Sources: https://legislature.vermont.gov/statutes/chapter/26/073
https://legislature.vermont.gov/statutes/section/26/073/03382