(a) The executive commissioner may not adopt rules restricting advertising or competitive bidding by a license or certificate holder except to prohibit false, misleading, or deceptive practices.
(b) In rules to prohibit false, misleading, or deceptive practices, the executive commissioner may not include a rule that:
(1) restricts the use of any medium for advertising;
(2) restricts the use of a license or certificate holder's personal appearance or voice in an advertisement;
(3) relates to the size or duration of an advertisement by the license or certificate holder; or
(4) restricts the license or certificate holder's advertisement under a trade name.