With respect to a seniority system adopted for an intentionally discriminatory purpose in violation of this chapter, whether that discriminatory purpose is apparent on the face of the seniority provision, an unlawful employment practice occurs when:

1. (1) the seniority system is adopted;
2. (2) an individual becomes subject to the system; or
3. (3) an individual is injured by the application of the system or a provision of the system.

Added by Acts 1995, 74th Leg., ch. 76, Sec. 9.05(a), eff. Sept. 1, 1995.