California · City

Layoffs in Sonora

Since August 8, 2025, our records for Sonora include 5 WARN notices naming 36 workers.

Largest WARN notices: Manteca District Ambulance Service - Striker Court (18, Apr 30, 2026); Adventist Health Sonora (8, Jun 25, 2026); Manteca District Ambulance Service (6, Apr 30, 2026).

WARN notices in Sonora

As filed with the state (all California notices). A notice is the employer’s plan; actual job losses can differ.

Notice date Employer Location Workers Type Effective Filing
Adventist Health Sonora Sonora · Tuolumne County 8 Layoff, permanent Jul 3, 2026 State report
Manteca District Ambulance Service Sonora · Tuolumne County 6 Layoff, permanent Jun 30, 2026 State report
Manteca District Ambulance Service - Striker Court Sonora · Tuolumne County 18 Layoff, permanent Jun 30, 2026 State report
Sentinel Transportation, LLC Sonora · Tuolumne County 3 Layoff, permanent May 31, 2026 State report
Adventist Health Sonora Sonora · Tuolumne County 1 Layoff, permanent Oct 10, 2025 State report

Rules and resources in California

Notice rules

Under the federal WARN Act, employers with 100 or more employees generally must give 60 days’ written notice before a plant closing or mass layoff.

California has its own rules (California WARN Act (Cal-WARN)):

  • Applies to employers with 75 or more employees, counting full-time and part-time workers.
  • Covers a layoff of 50 or more employees within a 30-day period, a plant or facility closure, or a relocation of operations.
  • Employers must give written notice at least 60 days in advance.

Source: Layoff Services: WARN, California Employment Development Department (California Labor Code, Section 1400.5). Checked October 11, 2026.

Where to get help