Solely for purposes of obtaining minimum basic benefit policies pursuant to the authority granted by this chapter, trusts may be formed composed of qualified individuals, qualified families, or qualified groups. Each trust may serve as a master policyholder. Members of qualified groups and members of such trusts may join together solely for the purpose of obtaining health insurance coverage under the provisions of this chapter. The Insurance Commissioner shall adopt rules governing the formation and operation of the trust to assure the protection of persons purchasing policies pursuant to this chapter.