(a) The board may not adopt rules restricting advertising or competitive bidding by a certificate holder except to prohibit false, misleading, or deceptive practices.
(b) In its rules to prohibit false, misleading, or deceptive practices, the board may not include a rule that:
(1) restricts the use of any advertising medium;
(2) restricts the use of a certificate holder's personal appearance or voice in an advertisement;
(3) relates to the size or duration of an advertisement by the certificate holder; or
(4) restricts the certificate holder's advertisement under a trade name.
(c) The board shall adopt rules to prevent a person regulated by the board from submitting a competitive bid to, or soliciting a competitive bid on behalf of, a governmental entity that is prohibited by Subchapter A, Chapter 2254, Government Code, from making a selection or awarding a contract on the basis of competitive bids.