(a) Except as provided by Subsection (b), the commissioner shall fix and promulgate the premium rates to be charged by a title insurance company or by a title insurance agent for title insurance policies or for other forms prescribed or approved by the commissioner.
(b) The commissioner may not fix or promulgate the premium rates for reinsurance between title insurance companies. Title insurance companies may establish the premium rates in amounts to which the companies agree.

(c) Except for a premium charged for reinsurance, a premium may not be charged for a title insurance policy or for another prescribed or approved form at a rate different than the rate fixed and promulgated by the commissioner.