Where to Send a Mediation Request for Missouri Workers' Compensation

Submitting a Mediation Request in Missouri

In Missouri, workers' compensation disputes are first directed to the Missouri Department of Labor & Industrial Relations (LIR). The LIR's Workers' Compensation Division handles all mediation requests, whether the claimant or the employer initiates the process. The official mailing address is:

Missouri Department of Labor & Industrial RelationsWorkers' Compensation DivisionP.O. Box 61002Jefferson City, MO 65101-1002

All mediation requests must accompany the required Form W-2, Request for Mediation and any supporting documentation. The form is available online at the LIR website and can be printed, filled, and mailed. For electronic submissions, the LIR's portal accepts scanned PDFs of the completed form and attachments. The deadline for filing is 30 days after the initial claim is filed with the LIR, but it can be extended in certain circumstances with written justification.

Key Steps to File

• Complete the Form W-2 accurately, indicating the dispute and desired outcome.
• Attach any evidence—medical reports, pay stubs, or correspondence—that supports the claim.
• Include the original claim number and the claimant's contact details.
• Mail or submit electronically to the address above.
• Retain copies of all documents and a proof of mailing (e.g., certified mail).

What Happens After Submission

Once the LIR receives the request, it assigns a mediator and schedules a mediation hearing. The mediator will notify both parties of the date, time, and location. Mediation is voluntary; either side may opt to proceed to a hearing or arbitration if an agreement is not reached.

Common Pitfalls to Avoid

• Missing the 30‑day filing window.
• Failing to include the claim number.
• Submitting incomplete forms—check the LIR website for the latest version.

Resources and Contact

For assistance, call the LIR Workers' Compensation Division at (573) 751-2000 or visit www.lir.mo.gov/wc. The site also hosts downloadable forms, FAQs, and guidance on mediation procedures.