In this section, “service company” means a person that provides services that are not provided by the administrator, including: claims adjustment; safety engineering; compilation of statistics and the preparation of premium, loss, and tax reports; preparation of other required self-insurance reports; development of members’ assessments and fees; and administration of a claim fund. The Commissioner shall adopt regulations to carry out this subtitle. The regulations shall include: classifications of businesses and industries, based on the type of activity conducted by the business or industry, within which employers may join together in self-insurance groups; for each classification: a minimum level of contribution of at least $250,000 in premiums collected from or pledged by members of a self-insurance group to a fund from which workers’ compensation claims will be paid; a minimum level of excess insurance coverage that must be obtained by each self-insurance group; a requirement that the minimum levels of excess insurance adopted under this subtitle may be satisfied by placing, in a depository that the Commissioner designates, securities in a form and amount that the Commissioner requires; and a surety bond of at least $100,000 that must be obtained by each self-insurance group; conditions under which contributions by members of a self-insurance group may be rebated or temporarily suspended; for each administrator or service company, a bond that the Commissioner may require in addition to any other required bond; and a requirement that the governance of the group be under the control of its members.