(a) Unless expressly authorized by another statute, a municipality or county may not adopt, enforce, or maintain an ordinance, order, or rule regulating conduct in a field of regulation that is occupied by a provision of this code. An ordinance, order, or rule that violates this section is void, unenforceable, and inconsistent with this code.
(b) For purposes of Subsection (a), a field occupied by a provision of this code includes employment leave, hiring practices, breaks, employment benefits, scheduling practices, and any other terms of employment that exceed or conflict with federal or state law for employers other than a municipality or county.