Complaint Hotline




Anyone with knowledge of fraud, waste, abuse, misconduct, or mismanagement involving the U.S. Department of the Interior should call or write the Office of Inspector General's Hotline:

  • Hotline Complaint Form
  • Telephone - OIG Hotline's Toll Free Number: 1-800-424-5081
  • Fax - Complete and submit the Complaint Form to:
    703-487-5402 (Attention: Hotline Operations)
  • U.S. Mail - Complete and submit the Complaint Form to:
    U.S. Department of the Interior
    Office of Inspector General
    1849 C Street, NW
    MS-4428
    Washington, DC 20240
    Attention: Hotline Operations
  • You may also report fraudulent activities to the nearest regional OIG offices at the following locations:
    Eastern Regional Office - Herndon, VA: 703-487-8057
    Central Regional Office - Lakewood, CO: 303-236-8296
    Western Regional Office - Sacramento, CA: 916-978-5630

Click here to download our printable hotline poster.

"Suspect It" Hotline Video


February 25, 2015


When DOI employees or private citizens report suspicions of wrongdoing to the Office of Inspector General (OIG), we can investigate the complaint and hopefully resolve the issue, resulting in positive change for the Department. The following video highlights just one example of the type of work we do when we received reports of wrongdoing.

Remember, if you suspect something is wrong, report it to OIG.


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Last Updated: 02/25/2015