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9-Month Hair Drug Test: Which Test Do I Need | AMH Nationwide

9-Month Hair Drug Test Which Test Is Best for Long-Term Drug Screening

The 9-month hair drug test which test detects drug use over a 9-month period by analyzing a longer hair sample. It is ideal for employers, courts, probation, or individuals needing extended detection beyond urine or saliva tests. Call (877) 731-6362 to schedule your test or learn more.

OVERVIEW

What is the 9-month hair drug test which test?

The 9-month hair drug test which test analyzes a 4.5-inch hair sample to detect drug use over the past 9 months. Hair grows approximately half an inch per month, so this extended length allows for a longer detection window than standard 3-month hair tests, urine, or saliva drug tests.

This test is processed through one of five national lab networks: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, or ExperTox. A certified Medical Review Officer reviews every non-negative result as part of standard processing.

USE CASES

When is the 9-month hair drug test which test the right choice?

The 9-month hair drug test which test is best when extended drug use history is required. It is often chosen by:

Employers conducting pre-employment or random testing for safety-sensitive or high-risk roles who want a longer detection window.

Courts or probation officers needing reliable evidence of long-term drug use patterns.

Individuals seeking comprehensive personal screening beyond the short detection windows of urine or saliva tests.

Employers: Extended screening for positions with safety concerns
Courts and Probation: Monitoring long-term compliance
Personal Use: Detailed drug use history beyond 90 days
COMPARISON

How does the 9-month hair drug test compare to other drug tests?

The 9-month hair drug test which test differs from other drug tests primarily in its detection window and sample type.

Test TypeDetection Window
Urine Drug Test1 to 4 days, up to 7 days for some drugs
Saliva Drug Test1 to 3 days
Standard 3-Month Hair TestUp to 90 days
9-Month Hair Drug TestUp to 9 months

Urine and saliva tests detect recent drug use but cannot reliably reveal use beyond a week. Standard hair tests analyze 1.5 inches of hair for a 3-month window, while the 9-month hair test uses 4.5 inches for extended detection.

LAB PROCESSING

How is the 9-month hair drug test processed and reviewed?

The 9-month hair drug test sample is collected at a local collection site arranged by AMH Nationwide. The lab receives the hair sample and conducts analysis for common drugs of abuse, including marijuana, cocaine, opiates, amphetamines, and PCP.

All non-negative results are reviewed by a certified Medical Review Officer to confirm findings and account for possible legitimate explanations.

Because hair testing is non-invasive and difficult to adulterate, it is a reliable method for long-term drug use detection.

Need a 9-Month Hair Drug Test?

Call (877) 731-6362 to arrange your hair drug test through AMH Nationwide and access one of five national lab networks for accurate long-term drug screening.

REGULATORY

Is the 9-month hair drug test suitable for DOT-regulated testing?

No, the 9-month hair drug test is not suitable for Department of Transportation (DOT) regulated safety-sensitive testing. DOT regulations require federally certified urine testing under 49 CFR Part 40.

Hair testing can be used for non-DOT roles or programs where extended detection is necessary but does not meet DOT protocol requirements.

ORDERING

How do I get a 9-month hair drug test?

AMH Nationwide provides the lab order and directs you to a nearby collection site for the 9-month hair drug test. There is no online ordering option.

Pricing varies depending on the drug panel and detection window. To schedule a test or get a quote, call (877) 731-6362.

AMH
Reviewed & Maintained By
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

The test detects common drugs of abuse including marijuana, cocaine, opiates, amphetamines, and PCP. The exact panel depends on the lab order.

Results typically take 3 to 5 business days after the lab receives the sample. Non-negative results undergo Medical Review Officer evaluation.

No. DOT requires federally certified urine testing under 49 CFR Part 40. Hair testing is for non-DOT programs.

A small hair sample about 4.5 inches long is cut close to the scalp at a collection site. The sample is sent to a lab for analysis.

Pricing varies by panel and detection window. Hair tests generally cost more than urine tests. Call (877) 731-6362 for a quote.

No. Hair tests detect drug use starting about 7 to 10 days after use, so very recent use may not appear. Urine or saliva tests are better for recent detection.

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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