1.  The employees eligible for insurance under the policy must be all of the employees of the employer, or all of any class or classes thereof. The policy may provide that the term "employees" includes the employees of one or more subsidiary corporations and the employees, individual proprietors, and partners of one or more affiliated corporations, proprietorships or partnerships if the business of the employer and of the affiliated corporations, proprietorships or partnerships is under common control. The policy may provide that the term "employees" includes the individual proprietor or partners if the employer is an individual proprietorship or partnership. The policy may provide that the term "employees" includes retired employees and directors of a corporate employer. A policy issued to insure the employees of a public body may provide that the term "employees" includes elected or appointed officials. If authorized by the school boards of the alternative organizational structure's member school administrative units pursuant to Title 20‑A, section 1001, an alternative organizational structure established pursuant to Title 20‑A, section 1461‑B may contract for group health insurance that is offered to all eligible employees and retirees of the alternative organizational structure and its member school administrative units and their dependents in one or more employment classifications.  

2.  The premium for the policy shall be paid either from the employer's funds or from funds contributed by the insured employees, or from both. Except as provided in subsection 3, a policy on which no part of the premium is to be derived from funds contributed by the insured employees must insure all eligible employees, except those who reject such coverage in writing.  

3.  Except as provided in section 2736‑C, section 2808‑B and chapter 36, an insurer may exclude or limit the coverage on any person as to whom evidence of individual insurability is not satisfactory to the insurer.  

4.