Chapter 21 of the Texas Labor Code deals with discrimination based on race, color, disability, religion, sex, national origin, or age. A charge of discrimination is a signed statement asserting that an employer, union or labor organization engaged in employment discrimination.The law makes discrimination illegal in all employment practices. An employee who is unlawfully discriminated against is entitled to receive back pay. In plain English, to discriminate means distinguishing, singling out, or making a distinction. We discriminate all the time in everyday life. Texas law makes it illegal for an employer to discriminate on the basis of race, color, national origin, religion, sex, age, or disability. 2.