A policy may be issued to a trust, or to the trustee or trustees of a fund, established or adopted by 2 or more employers, or by 1 or more labor unions or similar employee organizations, or by 1 or more employers and 1 or more labor unions or similar employee organizations, which trust or trustee or trustees shall be deemed the policyholder, to insure employee of the employer or members of the unions or organizations for the benefit of persons other than the employers or the unions or organizations, subject to the following requirements:
(1) The persons eligible for insurance shall be all of the employees of the employers or all of the members of the unions or organizations, or all of any class or classes thereof. The policy may provide that the term “employees” shall include the employees of 1 or more subsidiary corporations, and the employees, individual proprietors and partners of 1 or more affiliated corporations, proprietorships or partnerships if the business of the employer and of such affiliated corporations, proprietorships or partnerships is under common control. The policy may provide that the term “employees” shall include the individual proprietor or partners if the employer is an individual proprietorship or partnership. The policy may provide that the term “employees” shall include retired employees, former employees and directors of a corporate employer. The policy may provide that the term “employees” shall include the trustees or their employees, or both, if their duties are principally connected with such trusteeship.
(2) The premium for the policy shall be paid from funds contributed by the employer or employers of the insured persons, or by the union or unions or similar employee organizations, or by both, or from funds contributed by the insured persons from both the insured persons and the employer(s) or union(s) or similar employee organization(s). Except as provided in paragraph (3) of this section, a policy on which no part of the premium is to be derived from funds contributed by the insured persons specifically for their insurance must insure all eligible persons, except those who reject such coverage in writing.
(3) An insurer may exclude or limit the coverage on any person as to whom evidence of individual insurability is not satisfactory to the insurer.