DOT-COMPLIANT · ON-SITE EMPLOYER DRUG TESTING
Mobile Drug & Alcohol Testing in Fresno, California
On-site DOT-compliant collections for San Joaquin Valley agricultural CDL fleets, seasonal food processing employers, BNSF Fresno Yard railroad crews, and PG&E SJV pipeline operators.
On-site DOT-compliant collections for San Joaquin Valley agricultural CDL fleets, seasonal food processing employers, BNSF Fresno Yard railroad crews, and PG&E SJV pipeline operators. Fresno anchors agricultural logistics & food processing (fmcsa), rail (fra), pipeline & utilities (phmsa) employer demand — including Sun-Maid Growers; Del Monte Foods Fresno; Foster Farms; BNSF Fresno Yard, and related operators across California. For safety-sensitive CDL drivers, pipeline workers, railroad crews, and aviation employees who cannot leave a shift for a clinic visit, mobile collection keeps operations staffed while meeting federal custody requirements.
OnSite Employer Testing coordinates mobile drug testing collections at your Fresno-area facility, yard, terminal, or job site. We do not operate a clinic. Review how it works or browse all locations we serve across the region.
Why Fresno Employers Need Mobile Testing
Seasonal CDL surge testing during San Joaquin Valley harvest — grape, almond, pistachio, and citrus seasons
On-site collections at ag processing facilities — Sun-Maid, Del Monte, Wonderful Company packing houses
program design and compliance obligations remain your responsibility under applicable law — we coordinate the collections
Industries We Serve in Fresno
Sun-Maid Growers
Sun-Maid Growers — ag processing CDL fleet FMCSA (FMCSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Fresno market.
Del Monte Foods Fresno
Del Monte Foods Fresno — food processing CDL carrier fleets FMCSA (FMCSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Fresno market.
Foster Farms
Foster Farms — poultry processing CDL fleet FMCSA (FMCSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Fresno market.
BNSF Fresno Yard
BNSF Fresno Yard — FRA covered railroad employees (FRA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Fresno market.
PG&E San Joaquin Valley Gas Distribution
PG&E San Joaquin Valley Gas Distribution — PHMSA pipeline operators (PHMSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Fresno market.
Wonderful Company (Paramount Farms)
Wonderful Company (Paramount Farms) — almond/pistachio ag logistics FMCSA (FMCSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Fresno market.
Amazon FAT1 Fresno Fulfillment
Amazon FAT1 Fresno Fulfillment — CDL delivery fleet FMCSA (FMCSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Fresno market.
Applicable Regulations
Employers in Fresno commonly coordinate testing under:
- 49 CFR Part 40 — DOT collection and laboratory procedures
- 49 CFR Part 382 — FMCSA CDL agricultural and food processing carrier fleets
- 49 CFR Part 219 — FRA covered service BNSF Fresno
- 49 CFR Part 199 — PHMSA PG&E SJV gas distribution operators
- California Labor Code §§ 1025–1028 — employer drug-free workplace programs
- California seasonal agricultural worker protections — testing timing considerations during harvest surges
Testing Services Available in Fresno
We coordinate the following collections for Fresno-area employers:
DOT drug testing collections (FMCSA, FRA, FAA, FTA, PHMSA)
- Pre-employment drug and alcohol testing
- Reasonable suspicion and return-to-duty testing
Breath alcohol testing (BAT certified)
- Oral fluid drug testing
Mobile and on-site collections at your facility, yard, or job site
On-Site Collections in Fresno
BNSF Fresno Yard FRA random pool and post-incident collections for covered railroad crew
PG&E SJV PHMSA-compliant pipeline worker collections across Fresno and Tulare counties
Amazon FAT1 and warehouse district CDL fleet pre-employment and random testing
Use our instant quote calculator to scope your collection or visit our service areas page for broader coverage context.
Questions from employers in this region
Our ag employer hires dozens of seasonal CDL drivers during harvest. Can you handle the surge?
Yes. We specialize in seasonal CDL hiring surge testing for San Joaquin Valley agricultural employers. We can mobilize on-site at your packing house, ag processing facility, or fleet yard to handle large pre-employment batches during harvest season.
Do you serve rural ag operations outside Fresno city limits?
We serve agricultural and food processing employers throughout Fresno County and the surrounding San Joaquin Valley — including Selma, Reedley, Sanger, Kingsburg, and Tulare County locations where clinic access is limited.
How does California's agricultural worker framework affect drug testing requirements?
California's agricultural worker protections govern employment practices but DOT regulations (49 CFR Part 382) still fully apply to CDL-operating agricultural employers regardless of seasonal workforce status. We help employers maintain compliant testing programs year-round and during seasonal surges.
Core programs: Mobile & on-site drug testing, DOT drug testing, Non-DOT drug testing, Post-accident testing, Reasonable suspicion testing, Random testing programs, Breath alcohol testing. Planning: how it works, instant quote calculator, all locations. Industries: employer industries we support. Long-form answers: Employer drug testing FAQ. Quick questions: Contact us.
For how we think about regions and feasibility, see service areas.
Nationally coordinated collection support
OnSite Employer Testing is headquartered in Illinois and coordinates mobile and on-site employer testing across selected regions and employer locations—including through partner collectors when your program, timing, and geography allow. Availability depends on location, timing, test type, site access, collector availability, and scheduling needs.
Scope collections for your Fresno-area operation
Share your facility address, expected donor count, test reason, and DOT or non-DOT status — we confirm what is workable and send a written proposal.