OnSite Employer Testing logo — on-site and mobile employer drug and alcohol testing services

Call for urgent or after-hours dispatch

Call (219) 315-0345
Skip to main content

We bring the collector to your job site, warehouse, or office. Your employees stay on the clock. Call (219) 315-0345 or request a quote.

On-site workplace testing

On-Site & Mobile Drug Testing for Employers

Certified collectors come to your workplace, yard, terminal, office, or job site—so employees are not losing half a shift to a clinic trip. On-time collection means clear ETAs and arrivals scheduled around your operations.

Onsite drug testing means a trained collector travels to your workplace, warehouse, yard, or job site instead of requiring employees to travel to a clinic. This reduces downtime, shift disruption, and the risk of no-shows that can occur with clinic-based collection.

Employer mobile drug testing staging: collection professional completes chain-of-custody paperwork at a workbench with sealed specimen supplies, labels, and shipping materials for DOT or non-DOT workplace programs.
On-site and mobile visits use the same custody discipline as a fixed site—paperwork, sealed specimens, and handoff instructions that match your TPA or lab routing.

Bring the collection to the worksite

Onsite drug testing solves the same problem for most employers: too much time lost sending people to a clinic. Our on-site testing for businesses brings a certified collector to your workplace, yard, terminal, office, or job site—including Non-DOT drug testing and Random testing programs.

See service areas for coverage and pricing for how employer quotes are structured.

Best fit use cases

This service is especially useful for:

  • Random testing events

  • Pre-employment hiring days

  • Post-accident collections

  • Reasonable suspicion referrals

  • Multi-site employer programs

  • Shift-based operations

  • Locations where employee travel causes downtime

Urgent incidents often route through post-accident drug testing intake with site access and modality confirmed up front.

Who this page is for

This page is built for:

  • HR teams

  • Safety managers

  • DERs

  • Operations leaders

  • TPA and consortium partners

  • Employers replacing a clinic-only model

What mobile testing includes

A typical onsite event includes:

  • Collector travel to the site

  • Collection setup and donor flow

  • Identity verification

  • Chain-of-custody handling

  • Specimen packaging

  • Event documentation

The exact process depends on the ordered test reason, modality, and program type.

DOT and non-DOT can both use this model

Mobile delivery works for both DOT and non-DOT testing. The important distinction is that the program authority, paperwork, and procedures are different. We do not blur that line. We confirm it before the event begins.

Regulated collections follow DOT drug testing rules; non-DOT collections follow your company policy and state law.

Why employers prefer onsite collections

The operational advantages are straightforward:

  • Less employee downtime

  • Cleaner scheduling

  • Better supervisor visibility

  • Easier handling of large groups

  • Fewer clinic-related delays

  • Stronger control over the event

What employers should prepare

Before scheduling, the employer should provide:

  • Site address

  • Number of donors

  • DOT or non-DOT status

  • Test reason

  • Alcohol-testing needs

  • Access instructions

  • Space and restroom details where required

Frequently asked questions

What is on-site drug testing?

On-site drug testing is when a trained collector comes to your workplace, yard, terminal, office, or job site to collect specimens—instead of sending employees to a clinic. The custody standards match a fixed collection site when the event is staffed and documented correctly.

How does onsite drug testing work for employers?

You share the site address, donor count, DOT or non-DOT status, test reason, and access details. We schedule a collector, set up a secure collection flow on site, verify identity, complete chain-of-custody paperwork, and package specimens for lab or TPA routing. Employees stay at work instead of traveling to a clinic.

What types of on-site drug testing do you offer?

We support urine, oral fluid, and breath alcohol collections for DOT and non-DOT employer programs—including pre-employment, random, post-accident, reasonable suspicion, and return-to-duty events. The modality and paperwork follow the ordered test reason and program rules.

How quickly can you come to our facility for drug testing?

Timing depends on location, staffing, and modality. Routine events are scheduled around your operations; urgent post-accident and reasonable-suspicion collections are prioritized when we confirm availability. Call (219) 315-0345 for a realistic ETA for your site.

Is mobile testing as defensible as clinic testing?

Yes, when the collection is performed correctly and documented properly.

Can you support multi-site employers?

Yes. Share each address, donor counts, and program type during intake so we staff and route collections correctly across service areas.

Request an on-site testing quote

Share your location, test type, and employee count—we confirm availability and walk you through the first step.