This page contains information about Federal Communications Commission rules that apply to FCC preemption of local laws about RFI. It was prepared as a membership service by the ARRL Regulatory Information Branch at ARRL HQ. If you do have a regulatory problem that involves RFI, you need the information on this Web page. If local law attempts to regulate RFI from your station, if a neighbor threatens to sue you or if you feel that your local police are involved in an RFI problem, the information on this page will guide you through the steps you can take and the help the League can offer ARRL members. The bottom line is that under Federal law, only the FCC has the authority to regulate interference or write laws governing interference from licensed Amateur Radio operators. Remember, however, that the contents of this page do not constitute legal advice or aid which can only be given by a lawyer.