Where to Mail California Workers' Compensation Claims and Documents

Correct mailing address for standard workers' compensation claims

For most initial claims and routine paperwork, the California Department of Industrial Relations – Division of Workers' Compensation (DWC) uses a centralized processing center. Send all completed claim forms (DE 2500, DE 2501, DE 2502) and supporting documentation to:

Division of Workers' CompensationP.O. Box 1150Sacramento, CA 95812‑1150

Mailing to this address ensures the claim enters the DWC's electronic tracking system within 48 hours of receipt.

Employer‑specific notices and employer‑initiated filings

Employers who need to serve a Notice of Claim, a Claimant's Statement of Claim, or a Request for Medical Examination should use the same P.O. Box unless the employer has been assigned a regional processing unit. The DWC periodically issues regional codes; when applicable, the employer's payroll records will indicate the correct regional address. In the absence of a regional designation, default to the Sacramento P.O. Box.

Appeals, hearings, and legal motions

Documents that relate to an appeal, a hearing request, or a legal motion must be directed to the specific Administrative Law Judge (ALJ) or the Appeals Office handling the case. The address format is:

Workers' Compensation Appeals Office[ALJ's Name or Office Number]P.O. Box 1150Sacramento, CA 95812‑1150

Always include the claim number and the ALJ's docket number on the envelope to avoid misrouting.

Sending medical records and billing statements

Medical providers should forward treatment records, invoices, and billing statements to the same central P.O. Box, but they must attach a completed Medical Report Form (DE 2506) and clearly label the claim number. For expedited processing, certified mail with a return receipt is recommended.

Electronic filing alternatives

The DWC encourages electronic submission through its online portal, DWCFiling. When electronic filing is not possible, the physical mailing address above remains the default. Remember that electronic submissions generate an automatic acknowledgment, which can serve as proof of timely filing.

Key mailing tips to avoid delays

• Use a legible, pre‑printed address label.
• Include the full claim number on the outer envelope and the first page of the packet.
• Choose a trackable service (USPS Certified, FedEx, UPS) for time‑sensitive documents.
• Retain copies of all mailed items and the mailing receipt.
• Verify any regional address updates on the DWC website before sending.

Comparison of mailing options