In this chapter, the following terms have the meanings indicated. Terms Defined. “Carrier” means: An insurer; A nonprofit health service plan; A health maintenance organization; A dental plan organization; Any person or entity acting as a third-party administrator; or Except for a managed care organization as defined in Health-General Article, Title 15, Subtitle 1, Annotated Code of Maryland, any other person that provides health benefit plans subject to regulation by the State. “Enrollment sales materials” means any materials provided by a carrier to: An employer at the time of plan selection; or Enrollees at the time of enrollment.