A charge of discrimination must be filed within 300 days after the alleged discriminatory action, or one year for a Fair Housing case. A charge of Employment discrimination must be filed within 300 days of the alleged discrimination.You can file a claim or "charge" of discrimination with the EEOC if you believe you were treated unfairly at work. You can speak with a member of the Illinois Department of Human Rights (IDHR) and file a charge. You have 300 days from the last incident to file with the IDHR. (A) Freedom from Unlawful Discrimination. A person who believes he or she experienced housing discrimination may contact HUD for assistance. It is located in the Roman Catholic Diocese of Charlotte. Charlotte Catholic has a student to teacher ratio of .