Tex. Education Code § 37.0181

(a) Each principal or other appropriate administrator who oversees student discipline shall, at least once every three school years, attend professional development training regarding this subchapter, including training relating to the distinction between a discipline management technique used at the principal's discretion under Section 37.002(a) and the discretionary authority of a teacher to remove a disruptive student under Section 37.002(b).

(b) Professional development training under this section may be provided in coordination with regional education service centers through the use of distance learning methods, such as telecommunications networks, and using available agency resources.