(a) A special license plate issued under this subchapter shall be valid for as long as the motor vehicle to which the plate is attached is:
(1) Owned by the county, city, incorporated town, county quorum court member, or other public entity; and
(2) Used exclusively in the business of the county, city, incorporated town, or other public entity.
(b) A special license plate issued under § 27-24-302, § 27-24-304, or § 27-24-306 shall not be required to be renewed annually.