The Massachusetts Commission Against Discrimination (MCAD) is the independent state agency that enforces the Massachusetts anti-discrimination laws. If you experienced discriminatory treatment, you may file a Complaint at any of our four offices.No appointment is necessary. How do I file a complaint? Massachusetts has laws in place against discrimination on the job. In this section, learn about common forms of housing discrimination and what they can look like. You only have 300 days from the last act of discrimination to file a claim with the Massachusetts Commission Against Discrimination ("MCAD"). If you believe you were discriminated against because of your disability, you can fill out an intake form or call our office. Individuals with physical and mental disabilities are protected from all forms of housing discrimination. What happens in a psychiatric hospital?