Tex. Education Code § 51.934

(a) In this section, "employee" means any person employed by an institution of higher education in an executive, administrative, or clerical capacity or as a professor or instructor or in any similar capacity.

(b) An employee's assignment, pledge, or transfer, as security for indebtedness, of any interest in or part of the employee's salary or wages then due or that may become due under an existing contract of employment is enforceable only:

(1) if, before or at the time of execution, delivery, or acceptance of an assignment, pledge, or transfer, written approval is obtained in accordance with the policy of the employing institution; and

(2) to the extent that the indebtedness it secures is a valid and enforceable obligation.

(c) An institution of higher education shall honor an assignment, pledge, or transfer fulfilling the conditions of Subsection (b) without incurring any liability to the employee executing the assignment, pledge, or transfer. Payment to any assignee, pledgee, or transferee in accordance with the terms of the instrument is payment to or for the account of the assignor, pledgor, or transferor. An assignment, pledge, or transfer is enforceable only to the extent of salary due or that may become due during continuation of the assignor's employment as an employee of the institution.

(d) Venue for any suit against the employer of an employee to enforce an assignment, pledge, or transfer of salary is in the county where the employing institution is located.