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REPORTED · WARN NOTICE✓ VERIFIEDAdded Dec 10, 2025

SEMSA/Riggs Ambulance Service Layoff — December 2025

SOURCEOFFICIAL FILINGCalifornia Employment Development Department· filed October 31, 2025View the filing ↗

EMPLOYEES AFFECTED
181
EFFECTIVE DATE
Dec 31, 2025

What we know

Location: Riggs Avenue Merced, CA (Merced County).

A WARN notice for this layoff is recorded on October 31, 2025.

Disclosed through an official WARN filing with the CA state workforce agency.

Summary

Strauss Borrelli PLLC is investigating Riggs Ambulance Service, a division of Sierra Medical Services Alliance (SEMSA), over a potential violation of the federal WARN Act after the company notified the California Employment Development Department on October 31, 2025 of a mass layoff at its Merced facility. The firm alleges Riggs Ambulance Service laid off 181 employees and may have failed to provide the required 60 days' advance notice, which could entitle affected workers to back pay and benefits. The investigation is probing whether the employer met WARN Act obligations for covered employers with 100 or more employees. The notice and the firm's outreach invite impacted employees to contact Strauss Borrelli to discuss potential legal remedies related to the alleged improper timing of the layoffs.

SEMSA/Riggs Ambulance Service disclosed this layoff in an official WARN (Worker Adjustment and Retraining Notification) notice recorded by the CA state workforce agency on October 31, 2025. The notice covers 181 employees in Riggs Avenue Merced, CA (Merced County), with the layoff effective December 31, 2025.

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SOURCE
Official WARN notice
View state filing ↗
S
SEMSA/Riggs Ambulance Service
Health Care
1
EVENTS TRACKED
181
JOBS IN WARN FILINGS
View company profile

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CREATED DEC 10, 2025LAST UPDATED AUG 27, 2026