--- title: "12-Month Hair Drug Test: Results Timeline | AMH Nationwide" description: "Understand the 12-month hair drug test results timeline, including confirmation steps and potential delays. Call (877) 731-6362 for details and scheduling." author: "AMH Nationwide" date: "2026-08-27" tags: ["12-month hair drug test results timeline"] canonical: "https://amhnationwide.com/12-month-hair-drug-test-results-timeline/" last_updated: "2026-08-27" --- # 12-Month Hair Drug Test: Results Timeline | AMH Nationwide **By AMH Nationwide** | August 27, 2026 Understand the 12-month hair drug test results timeline, including confirmation steps and potential delays. Call (877) 731-6362 for details and scheduling. --- The 12-month hair drug test results timeline typically spans 5 to 10 business days from sample collection to final report. Non-negative results undergo confirmation by a certified Medical Review Officer, which adds extra processing time. Factors like lab volume or sample issues can delay results. Call (877) 731-6362 for scheduling and questions. OVERVIEW ## What is the typical turnaround time for 12-month hair drug test results? The typical turnaround time for 12-month hair drug test results is between 5 and 10 business days from the date of sample collection. This timeframe includes the routing of the sample through one of five national lab networks: [Quest Diagnostics](https://www.questdiagnostics.com/), [LabCorp](https://www.labcorp.com/), Omega Labs, United States Drug Testing Labs, or ExperTox. AMH Nationwide coordinates the lab order and directs the requester to an appropriate collection site. There is no online ordering available. Call (877) 731-6362 to arrange testing. PROCESS ## How is the 12-month hair drug test processed after collection? Once the hair sample is collected, it is sent to one of the five national labs for analysis. The labs perform an initial screening to detect the presence of drugs within the past 12 months. If the screening is negative, results are typically reported within the standard 5 to 10 business days. Non-negative (preliminary positive) results are forwarded for confirmation testing, which involves more detailed and specific analysis before final reporting. CONFIRMATION ## What happens if the 12-month hair drug test is non-negative? Non-negative hair drug test results trigger a confirmation process. This process uses advanced techniques such as gas chromatography-mass spectrometry (GC-MS) or liquid chromatography-tandem mass spectrometry (LC-MS/MS) to verify the presence of specific drugs. Following confirmation, a certified Medical Review Officer (MRO) reviews the results to consider any legitimate medical explanations before releasing the final report. This confirmation and review process can add 3 to 5 business days to the overall timeline. DELAYS ## What factors can delay the 12-month hair drug test results timeline? Several factors can extend the timeline for 12-month hair drug test results: – High lab volume or backlogs – Incomplete or compromised samples – Need for additional testing or clarification – Holidays or weekends affecting lab processing schedules AMH Nationwide does not control lab processing times but provides guidance and support as needed. For the most current status, call (877) 731-6362. Lab volume: Increased testing demand can slow processing Sample issues: Insufficient or contaminated hair samples require recollection Additional testing: Confirmation or supplemental analyses add time Scheduling: Collection appointment availability may affect start time ## Schedule Your 12-Month Hair Drug Test Today Call (877) 731-6362 to coordinate collection and receive an accurate results timeline for your 12-month hair drug test. [Call (877) 731-6362](tel:+18777316362)[Contact Us](https://amhnationwide.com/contact-us/) COMPARISON ## How does the 12-month hair drug test results timeline compare to other drug tests? The 12-month hair drug test has a longer [detection window](https://amhnationwide.com/hair-follicle-drug-test-detection-window/) but a longer processing time compared to [urine](https://amhnationwide.com/urine-drug-testing/) or saliva tests. Typical turnaround times are: Urine drug tests: 1 to 3 business days Saliva drug tests: Same day to 2 business days 12-month hair drug test: 5 to 10 business days plus confirmation time if needed | Test Type | Typical Turnaround Time | | --- | --- | | Urine Drug Test | 1-3 business days | | Saliva Drug Test | Same day to 2 business days | | 12-Month Hair Drug Test | 5-10 business days plus confirmation | The longer timeline for hair testing reflects the complexity of the analysis and the extended detection window. NEXT STEPS ## How do I arrange a 12-month hair drug test and get results? AMH Nationwide provides lab orders and directs clients to local collection sites for 12-month hair drug testing. There is no option to order tests online. To schedule testing or ask about the expected results timeline, call (877) 731-6362. After sample collection, results are sent to the requester following lab analysis and any necessary confirmation steps. 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](https://www.samhsa.gov/workplace/drug-testing)-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 You May Also Need [Nail Drug TestingNo head or body hair available? A 5-panel fingernail test covers a similar look-back window.Learn more →](https://amhnationwide.com/5-panel-fingernail-drug-test/)[ChildGuard: Environmental ExposureConcerned about a child or loved one? ChildGuard screens for exposure to drugs in their environment.Learn more →](https://amhnationwide.com/5-panel-hair-drug-test-environmental-exposure-childguard/)[Shorten the Detection WindowShortened options like 30 and 60 day hair panels are also available, useful when a urine test’s 1-3 day window is too short.Learn more →](https://amhnationwide.com/30-day-hair-drug-test/)[Hair ETG Alcohol TestAlso need alcohol testing? The hair ETG test screens for alcohol use, and can be added to the same collection.Learn more →](https://amhnationwide.com/etg-and-peth/) Frequently Asked Questions ## Common Questions Results usually take 5 to 10 business days from sample collection. Non-negative results require confirmation, which can add 3 to 5 additional days. Samples are routed to one of five national labs: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, or ExperTox. No. AMH Nationwide provides lab orders and directs you to a collection site, but does not offer online test ordering. Delays may result from high lab volume, sample issues, additional testing requirements, or holidays affecting lab schedules. Yes. All non-negative screens undergo confirmation testing and review by a certified Medical Review Officer before final results are released. Hair testing takes longer, typically 5 to 10 business days plus confirmation time, while urine testing results are usually available within 1 to 3 business days. Sources • [SAMHSA – Mandatory Guidelines for Federal Workplace Drug Testing Programs](https://www.samhsa.gov/workplace/drug-testing) • [U.S. DOT – 49 CFR Part 40 – Procedures for Transportation Workplace Drug and Alcohol Testing Programs](https://www.transportation.gov/odapc/part40) • [CDC – National Center for Health Statistics – Drug Use FastStats](https://www.cdc.gov/nchs/fastats/drug-use.htm) • [Quest Diagnostics – Employer Solutions, Hair Testing Methodology](https://www.questdiagnostics.com/) • [LabCorp – Occupational Testing Services](https://www.labcorp.com/) ## 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. [Call (877) 731-6362](tel:+18777316362)[Contact Us](https://amhnationwide.com/contact-us/) --- **Need a drug, alcohol, HIV or STD test?** AMH Nationwide is a national lab testing agency operating since 2004, with more than 20,000 collection sites across the United States. Hair, urine, fingernail and blood testing, panels from 5 through 19, for individuals and employers. - Call: (877) 731-6377 - Find a collection site: https://amhnationwide.com/locations/ - Full page: https://amhnationwide.com/12-month-hair-drug-test-results-timeline/