Proudly serving the United States — starting in Texas

On-site drug & alcohol testing. We come to your workplace.

Mobile-only collections at your facility — factories, trucking yards, job sites, offices. Your employees stay on the clock. Your program stays audit-ready.

On-site same-day
24-hour turnaround
MRO-reviewed results
Defensible chain of custody

Quick request

Reply within 1 business hour

Book a test

24h
Typical turnaround
99.9%
Result accuracy
TX
Now serving Texas
0
Clinic visits needed
Built for employers

Testing that fits the way your workforce actually runs.

We're mobile-only by design. No brick-and-mortar clinic, no employee travel, no lost productivity.

Trucking & Logistics

DOT-compliant random pools, post-accident, and pre-employment — collectors come to your yard.

DOT program

Manufacturing & Warehousing

Keep the line running. We test on-site so employees never leave the facility.

Workforce testing

Construction & Field Ops

Reasonable-suspicion and post-incident coverage across your job sites.

Program design

HR & Safety Leaders

One partner for pre-hire, random, and post-incident — with audit-ready records.

Talk to us
For individuals & families

DNA testing — paternity, maternity, and legal relationship testing.

Confidential buccal-swab DNA collection. Choose an at-home informational kit or a legally admissible test collected under documented chain-of-custody — for immigration, custody, or court proceedings.

Paternity·Maternity·Siblingship·Grandparent·Immigration·Court-admissible·Peace of mind·Paternity·Maternity·Siblingship·Grandparent·Immigration·Court-admissible·Peace of mind·Paternity·Maternity·Siblingship·Grandparent·Immigration·Court-admissible·Peace of mind·
Why Rapid Response

Calm authority. Never alarm.

We pair certified labs and trained collectors with plain-English guidance — so your program is defensible without ever feeling like surveillance.

Accuracy

SAMHSA-certified labs and validated panels defensible in any setting.

Speed

Same-day on-site collections; most results within 24 hours.

Confidentiality

Encrypted delivery, strict access controls, and MRO review.

Compliance

49 CFR Part 40, DOT, and non-DOT — handled end-to-end.

How it works

Ten steps from request to defensible result.

A collector on-site at your facility, an MRO-reviewed result in your inbox — with a paper trail an auditor can defend.

  1. 01

    Request a program

    Tell us your workforce size, location, and testing needs. We recommend the right panels.

  2. 02

    We schedule the collector

    A certified mobile collector is dispatched to your facility at a time that fits your operations.

  3. 03

    Verify IDs on-site

    Employees stay at work. The collector verifies each donor's government-issued ID before collection.

  4. 04

    Chain-of-custody documentation

    Federal drug testing custody & control forms completed for every donor.

  5. 05

    Sample collection

    Urine collection or BAT breath test performed on-site under strict procedure.

  6. 06

    Sealed & shipped

    Specimens sealed in front of the donor and shipped to a SAMHSA-certified lab.

  7. 07

    Lab analysis

    Immunoassay screen with GC/MS or LC/MS-MS confirmation on non-negative results.

  8. 08

    MRO review

    A Medical Review Officer verifies legitimate medical explanations before releasing non-negatives.

  9. 09

    Secure result delivery

    Results delivered to your designated employer representative through our secure portal.

  10. 10

    Audit-ready recordkeeping

    All records archived and retrievable for DOT audits or internal review.

Employer solutions

Helping employers build safer, drug-free workplaces.

From a five-employee shop to a multi-site enterprise, we design testing programs around your industry, regulations, and operational reality.

  • Pre-employment screening
  • Random pool management
  • Post-incident & reasonable suspicion
  • DOT / FMCSA compliance
  • Return-to-duty & follow-up
  • Policy & supervisor training
Workplace team
Modern testing laboratory
Confidentiality & trust

Your privacy. Our priority.

Every test we handle follows strict chain-of-custody procedures and is processed by SAMHSA-certified laboratory partners. Results are delivered through secure channels only to the parties you authorize.

Secure process

Encrypted result delivery and strict access controls.

Confidential by default

Information is never shared without your consent.

Trusted methods

SAMHSA-certified labs and validated testing panels.

Defensible records

Documented chain-of-custody for every sample.

Trusted by employers

What our clients say.

"Rapid Response set up our random pool, handled DOT paperwork, and their collector came straight to our yard. Faster than any clinic we've used."

HR Director, Houston Logistics Co.

"Post-incident test on a Sunday — collector was on-site in under two hours. No driver had to leave."

Safety Manager, Houston TX

"We tested 40 employees in one morning without shutting down the line. That's the whole reason we switched."

Operations Lead, Texas manufacturer

Ready when you are

Schedule a test in minutes. Get results you can trust.

Whether you need a single confidential test or a full workforce screening program, our team will guide you from booking to certified results.