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Who does hair follicle drug test

Who Does Hair Follicle Drug Test and Why It Matters for Long-Term Detection

Who does hair follicle drug test? Employers, courts, probation officers, and individuals order hair follicle drug testing to detect drug use over a 90-day window. AMH Nationwide coordinates collection through five national lab networks with certified Medical Review Officer oversight. Call (877) 731-6362.

TESTERS

Who does a hair follicle drug test?

Hair follicle drug testing is typically ordered by employers for pre-employment screening, random testing, or post-incident investigations. Courts and probation agencies also use these tests to monitor compliance with drug-free mandates. Additionally, some individuals seek hair follicle drug testing for personal reasons such as legal cases or verifying abstinence.

AMH Nationwide facilitates these tests by providing lab orders and directing clients to one of 20,000+ nationwide collection sites. Tests are processed through five national lab networks: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, and ExperTox.

PURPOSE

Why do employers choose hair follicle drug testing?

Employers use hair follicle drug testing because it detects drug use over a longer period than urine or saliva tests, typically up to 90 days. This makes it effective for identifying patterns of drug use rather than recent or one-time use.

Hair follicle testing is non-invasive and difficult to adulterate, providing reliable results that help maintain workplace safety and compliance with company policies.

Detection window: up to 90 days
Non-invasive collection
Difficult to tamper with
Used for pre-employment and random testing
LAB PROCESS

Who does hair follicle drug testing in the lab?

Hair follicle samples collected through AMH Nationwide are sent to one of five national lab networks for analysis: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, or ExperTox. Each lab follows strict chain-of-custody protocols and uses scientifically validated methods.

Every non-negative result is reviewed by a certified Medical Review Officer (MRO) to ensure accuracy and proper interpretation before reports are released to the requester.

LEGAL & DOT

Who does a hair follicle drug test for DOT-regulated employees?

The U.S. Department of Transportation (DOT) does not approve hair follicle drug testing for safety-sensitive positions. Instead, DOT regulations require federally certified urine testing under 49 CFR Part 40.

Hair follicle drug tests are used for non-DOT roles where employers want a longer detection window. AMH Nationwide complies with all relevant regulations and directs clients accordingly.

Schedule Your Hair Follicle Drug Test Today

Call (877) 731-6362 to arrange hair follicle drug testing with AMH Nationwide. Access thousands of collection sites nationwide and expert lab processing with Medical Review Officer oversight.

RELIABILITY

Can hair follicle drug tests detect passive exposure or one-time use?

Hair follicle drug tests detect drugs incorporated into the hair shaft from bloodstream exposure, typically reflecting consistent use rather than one-time or passive exposure. Occasional or environmental contact is unlikely to produce a positive result.

The testing labs use sensitive and specific methods to distinguish between legitimate drug use and external contamination, ensuring reliable outcomes.

ORDERING

How do I get a hair follicle drug test through AMH Nationwide?

AMH Nationwide provides the lab order and directs you to a nearby collection site. There is no option for online ordering. To initiate testing, call (877) 731-6362 to speak with a representative who will guide you through the process.

Pricing varies depending on the test panel and detection window. Contact AMH for a detailed quote and scheduling information.

AMH
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AMH Nationwide Customer Service

AMH Nationwide is BBB A+ accredited and routes every order through Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, or ExperTox, all of which use multiple lab certification agencies and standards such as SAMHSA-aligned laboratory protocols, the ANSI National Accreditation Board for forensic testing and calibration, the College of American Pathologists (CAP), and Clinical Laboratory Improvement Amendments (CLIA). Every non-negative screen is reviewed by a certified Medical Review Officer as part of standard processing before a result is released, and chain-of-custody documentation is maintained on every collection. This page does not constitute medical or legal advice.

Last updated: July 2026
Frequently Asked Questions

Common Questions

Employers, courts, probation officers, and individuals order hair follicle drug tests to detect drug use over an extended period. This test is favored for its long detection window and reliability.

Hair follicle drug tests detect drug use up to 90 days prior to collection, making them suitable for identifying long-term patterns rather than recent use.

No. DOT regulations require urine testing under 49 CFR Part 40. Hair follicle testing is used only for non-DOT roles.

Passive exposure rarely causes a positive hair follicle drug test. The labs use methods to distinguish external contamination from actual drug ingestion.

All non-negative results undergo review by a certified Medical Review Officer who verifies accuracy and interprets findings before releasing reports.

Call (877) 731-6362 to receive a lab order and be directed to a nearby collection site. AMH does not offer online ordering.

Ready to get started?

AMH Nationwide provides the lab order and arranges collection nationwide. Every non-negative result reviewed by a certified Medical Review Officer. Call (877) 731-6362 or contact us.

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