Please list in detail your complaint or complaints. If you have more than one complaint, please list them numerically.A charge of discrimination must be filed within 300 days after the alleged discriminatory action, or one year for a Fair Housing case. 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 Americans with Disabilities Act (ADA) of 1990, 42 USC 121101 prohibits discrimination against a qualified individual with a disability. You can file a complaint and pursue a discrimination claim at the Commission on Human Relations if you believe you have been personally harmed. You have 300 calendar days after the discrimination occurred to file a charge. Discrimination Based on Disability. It is the policy of the Illinois Council on Developmental Disabilities to provide assistance in filling out this form.