The Office of Consumer Affairs and Business Regulation oversees the state’s Lemon Laws and Lemon Law Arbitration, Data Breach reporting, Home Improvement Contractor Programs, and the state’s Do Not Call Registry. We help all Massachusetts consumers, home improvement contractors, people seeking help with a recently purchased car, tenants and landlords, and businesses seeking to report a data breach or interested in the data breach notification law. Learn more about the state's consumer protection agency and how we regulate the businesses with which you interact!