8 V.S.A. § 4070
(a) As used in this section:
(2) “Hearing aid professional services” means the practice of fitting, selecting, dispensing, selling, or servicing hearing aids, or a combination, including:
(4) “Large group health insurance plan” means a major medical insurance plan that meets the requirements of section 4041 of this title but that is not:
(b) (1) A large group health insurance plan shall cover the cost of a hearing aid for each ear and the associated hearing aid professional services when the hearing aid or aids are prescribed, fitted, and dispensed by a hearing care professional. The coverage shall include hearing aid batteries when prescribed by a hearing care professional.
(c) (1) Subject to the limitations set forth in subdivision (b)(2) of this section, the coverage provided by a large group health insurance plan for hearing aids and associated services shall be limited only by medical necessity.