(a) The commissioner may not adopt or enforce a rule that implements an interstate, national, or international agreement that:
(1) infringes on the authority of this state to regulate the business of insurance in this state; and
(2) was not approved by the legislature.
(b) An agreement described by Subsection (a) has no effect on the authority of this state to regulate the business of insurance in this state unless the agreement is approved by the legislature.