DOT-COMPLIANT · ON-SITE EMPLOYER DRUG TESTING
Sterling, Colorado Mobile Drug & Alcohol Testing
I-76 Agriculture Corridor · Feedlots · Grain Elevators · Northeast Colorado CDL — Mobile collections at the gateway to the High Plains.
Sterling anchors Logan County's agricultural economy — one of Colorado's most productive corn, wheat, and cattle regions. I-76 is a primary agricultural CDL corridor connecting Northeast Colorado to Denver and Nebraska. Feedlot operations, grain elevators, and sugar beet processing plants employ significant CDL workforces subject to FMCSA 49 CFR Part 382. OnSite Employer Testing serves the I-76 corridor from Denver to the Nebraska border, dispatching to Sterling and surrounding Logan County communities.
OnSite Employer Testing coordinates mobile drug testing collections at your Sterling-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.
Northeast Colorado's Agricultural Freight and Feedlot Hub
Sterling anchors Logan County's agricultural economy — one of Colorado's most productive corn, wheat, and cattle regions. I-76 is a primary agricultural CDL corridor connecting Northeast Colorado to Denver and Nebraska. Feedlot operations, grain elevators, and sugar beet processing plants employ significant CDL workforces subject to FMCSA 49 CFR Part 382. OnSite Employer Testing serves the I-76 corridor from Denver to the Nebraska border, dispatching to Sterling and surrounding Logan County communities.
FMCSA 49 CFR Part 382 governs CDL fleets on I-76. Colorado Amendment 64 does not affect DOT testing.
Program design and compliance obligations remain your responsibility under applicable law — we coordinate the collections.
Industries Served in Sterling
Agriculture
Agriculture — Logan County feedlots, grain, corn, sugar beet. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Sterling market.
CDL freight
CDL freight — I-76 agricultural corridor, Northeast Colorado. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Sterling market.
Healthcare
Healthcare — Sterling Regional MedCenter. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Sterling market.
Construction and utilities
Construction and utilities. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Sterling market.
Food processing
Food processing — beet sugar and grain processing. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Sterling market.
Applicable RegulationsSterling, CO
Employers in Sterling commonly coordinate testing under:
- FMCSA 49 CFR Part 382 — CDL drivers on I-76, US-6, and CO-63 serving feedlots, grain elevators, and agricultural freight
- DOT Return-to-Duty & Follow-Up — SAP-supervised employees
Testing Services Available in Sterling
We coordinate the following collections for Sterling-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 Sterling
Pre-employment, Random, Reasonable Suspicion, Post-Accident — urine, oral fluid, and EBT
Agricultural sector panels — feedlot operations, grain elevator, sugar beet processing CDL
Colorado Marijuana Compliance — Amendment 64 does NOT affect DOT-regulated employees
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
Do you cover the full I-76 corridor from Sterling to Denver?
Yes. We serve the entire I-76 agricultural CDL corridor — Sterling, Fort Morgan, Brush, and connecting communities in Logan, Morgan, Washington, and Adams counties.
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.
Mobile Testing for Sterling and the I-76 Ag Corridor
Feedlots, grain elevators, and Northeast Colorado CDL carriers — get compliant mobile collections dispatched today.