(2) “Carrier” means an insurer, nonprofit health service plan, health maintenance organization, or dental plan organization that provides dental benefits on an expense-incurred basis under policies or contracts issued or delivered in the State.

(3) “Dental preventive care” means a preventive dental visit, screening, oral examination, teeth cleaning (prophylaxis), fluoride treatment, or routine preventive service that is a covered benefit under a policy or contract issued or delivered by a carrier.

(b) If benefits for dental preventive care are available and all other requirements for the coverage of dental preventive care are met, a carrier shall provide coverage for dental preventive care:

(1) at any time during the plan year for a policy or contract that provides coverage for dental preventive care once during the plan year; or

(2) subject to subsection (c) of this section, in accordance with any frequency limitation for a policy or contract that provides coverage for dental preventive care more than once during the plan year.

(c) A carrier may not impose a frequency limitation on dental preventive care that requires the dental preventive care to be provided at an interval greater than 120 days during a plan year.

(d) This section may not be construed to require coverage for a service not otherwise required by law.