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The FBI's Field Offices are located in major cities throughout the United States and in San Juan, Puerto Rico. In addition, resident agencies are maintained in smaller cities and towns across the country. The locations were selected according to crime trends, the need for regional geographic centralization, and the need to efficiently manage resources.

Each Field Office is overseen by a Special Agent in Charge (SAC), except those located in Los Angeles, New York City, and Washington, D.C. Due to their large size, these offices each are managed by an Assistant Director in Charge (ADIC). The ADICs are assisted by SACs responsible for specific programs.
The FBI encourages the public to report any suspected violations of U.S. federal law. You can do so by calling your local FBI office, Legal Attache office, or by submitting a tip via the FBI Tips and Public Leads form.