The ADA provides an important tool to fight discrimination: filing a complaint with an appropriate federal agency. This page outlines the steps to do so.The ADA prohibits disability discrimination in the workplace and other contexts, and it became law in 1990. Call (512) 271-5527 - Austin Employment Lawyers, P.C. - Aggressive advocates dedicated to your interests in Employment and Discrimination cases. We handle disability discrimination claims in Austin and throughout the wider region, including in Travis County, Williamson County, and Hays County. Secure for persons in this state, including persons with disabilities, freedom from discrimination in certain employment transactions. First Page. 481. Abstract. Recommended Citation. The ADA of 1990 prohibits discrimination on the basis of disability, and protects consumers, qualified applicants and employees with disabilities. Discrimination, on the basis of disability.