(a) A professional employee of a school district may not be subject to disciplinary proceedings for the employee's use of physical force against a student to the extent justified under Section 9.62, Penal Code.
(b) In this section, "disciplinary proceeding" means:
(1) an action brought by the school district employing a professional employee of a school district to discharge or suspend the employee or terminate or not renew the employee's term contract; or
(2) an action brought by the State Board for Educator Certification to enforce the educator's code of ethics adopted under Section 21.041(b)(8).
(c) This section does not prohibit a school district from:
(1) enforcing a policy relating to corporal punishment; or
(2) notwithstanding Subsection (a), bringing a disciplinary proceeding against a professional employee of the district who violates the district policy relating to corporal punishment.