A charge of discrimination must be filed within 300 days after the alleged discriminatory action, or one year for a Fair Housing case. Title VII prohibits employment discrimination based on race, color, religion, sex and national origin.The employer must have one employee for at least 20 weeks in the violation year, or the year before the violation. To get help under Title VII, you need to file written charges of discrimination with an EEOC office before you can take the case to court. Title VII is a federal law that prohibits employment discrimination based on a worker's race, color, gender, religion, or national origin. In Illinois, you must file an official charge with the EEOC within 300 days of the act of discrimination.