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OSHA Fax Number — File Workplace Safety Complaints

OSHA takes workplace safety complaints, injury reports, and other filings by fax, but it has more than 200 area offices and each one runs its own line. A faxed and signed complaint counts as a formal complaint, which obligates OSHA to consider an on-site inspection rather than just a phone follow-up. You'll need the fax number for the area office covering the location of the workplace you're reporting, which you can find on OSHA.gov.

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OSHA Fax Number

Contact your local OSHA area office for their fax number

Hours: OSHA area offices: Monday-Friday, 8:00 AM - 4:30 PM local time.

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What You Can Fax to OSHA

  • Workplace safety complaints
  • OSHA 300 injury/illness logs
  • Whistleblower complaints
  • Contest of citations
  • Variance requests
Tip: Spell out the workplace address, the employer's name, and a detailed description of the hazard, since vague complaints are harder for OSHA to act on. You can file anonymously, and OSHA will not disclose your identity to the employer. Keep in mind OSHA must respond to a written complaint within five days, so send to the correct area office the first time to avoid losing days to rerouting.

Faxing to OSHA — FAQ

Yes. A signed, faxed complaint is treated as a formal complaint, which requires OSHA to evaluate it for an on-site inspection. A phone complaint is typically handled through a less formal phone-and-fax process with the employer.

Use the fax number for the area office that covers the workplace you're reporting. OSHA runs over 200 area offices, each with its own line, and you can find the nearest one on OSHA.gov.

Yes. You can submit an anonymous safety complaint, and OSHA will not reveal your identity to the employer. Including specific details about the hazard still helps OSHA act on it.

OSHA is required to respond to written complaints within five days. Sending to the correct area office the first time avoids losing part of that window to rerouting.

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