Tex. Lab. Code § 101.052 : LABOR CODE — EMPLOYER-EMPLOYEE RELATIONS — LABOR ORGANIZATIONS — RIGHT TO WORK — Denial of Employment Based on Labor Union Membership Prohibited TEXT PDF A person may not be denied employment based on membership or nonmembership in a labor union. Tex. Lab. Code § 101.052 Acts 1993, 73rd Leg., ch. 269, Sec. 1, eff. 9/1/1993.