In General. This chapter applies to hearings conducted by the Board of Trustees of the Maryland Health Benefit Exchange. Determinations Entitled to Hearings. This chapter applies only to the appeal of an Exchange determination regarding: The amount of State-based subsidy paid by the Exchange to carriers pursuant to COMAR 14.35.19; Contested cases under COMAR 14.35.10 in which the Board has revoked delegation authority; Rehearings held pursuant to COMAR 14.35.10.11E; and Any other matter in which the Board has the authority to conduct hearings, and the Board has determined that a hearing is necessary.