Drug & Alcohol Testing Near Me - Greenville, TX

Accredited Drug Testing provides drug and alcohol testing services at multiple locations throughout your local area.  

Employment, DOT, Court Ordered, Personal
Urine | Hair Follicle | Oral Fluid | Blood | ETG

33 Drug-Testing Centers in Greenville

Minutes Away, Test Today

2406 Stonewall St0.24 miles

2406 Stonewall St
Greenville, TX 75401

4101 Wesley St, Suite G0.75 miles

4101 Wesley St, Suite G
Greenville, TX 75401

3101 Joe Ramsey Blvd E Ste 1051.29 miles

3101 Joe Ramsey Blvd E Ste 105
Greenville, TX 75401

2806 Mitchell St2.02 miles

2806 Mitchell St
Greenville, TX 75402

8110 Wesley St Ste 1003.28 miles

8110 Wesley St Ste 100
Greenville, TX 75402

1705 Live Oak St14.07 miles

1705 Live Oak St
Commerce, TX 75428

1607 E Quinlan Pkwy16.21 miles

1607 E Quinlan Pkwy
Quinlan, TX 75474

494 W Interstate 3017.87 miles

494 W Interstate 30
Royse City, TX 75189

2921 Broken Spoke Ln22.37 miles

2921 Broken Spoke Ln
Rockwall, TX 75087

4302 County Road 464023.63 miles

4302 County Road 4640
Trenton, TX 75490

103 N 1st St24.92 miles

103 N 1st St
Rockwall, TX 75087

9824 Lakeview Pkwy, Suite 20027.38 miles

9824 Lakeview Pkwy, Suite 200
Rowlett, TX 75088

9812 Lakeview Pkwy #10227.38 miles

9812 Lakeview Pkwy #102
Rowlett, TX 75088

6800 Scenic Dr27.54 miles

6800 Scenic Dr
Rowlett, TX 75088

1513 Houston St28.00 miles

1513 Houston St
Sulphur Springs, TX 75482

426 Fm 548 Ste 12428.84 miles

426 Fm 548 Ste 124
Forney, TX 75126

819 E Moore Ave Ste B29.28 miles

819 E Moore Ave Ste B
Terrell, TX 75160

115 Airport Rd29.62 miles

115 Airport Rd
Sulphur Springs, TX 75482

105 Medical Plz29.71 miles

105 Medical Plz
Sulphur Springs, TX 75482

910 W University Dr30.04 miles

910 W University Dr
Mckinney, TX 75069

504 Lipscomb St30.45 miles

504 Lipscomb St
Bonham, TX 75418

4510 Medical Center Dr Ste 21230.50 miles

4510 Medical Center Dr Ste 212
Mckinney, TX 75069

4510 Medical Center Dr, Ste 31030.50 miles

4510 Medical Center Dr, Ste 310
Mckinney, TX 75069

1920 W Eldorado Pkwy30.59 miles

1920 W Eldorado Pkwy
Mc Kinney, TX 75069

1515 Heritage Dr, Ste 10030.63 miles

1515 Heritage Dr, Ste 100
Mckinney, TX 75069

130 S Central Expy30.79 miles

130 S Central Expy
Mckinney, TX 75070

809 N Central Expy30.83 miles

809 N Central Expy
Mckinney, TX 75070

109 Tejas Dr Ste 10030.84 miles

109 Tejas Dr Ste 100
Terrell, TX 75160

591 Apache Trl30.96 miles

591 Apache Trl
Terrell, TX 75160

1551 State Highway 34 S31.08 miles

1551 State Highway 34 S
Terrell, TX 75160

2810 S Hardin Blvd32.13 miles

2810 S Hardin Blvd
Mckinney, TX 75070

1300 N Central Expy32.41 miles

1300 N Central Expy
Plano, TX 75074

1101 Raintree Cir, Suite 10032.77 miles

1101 Raintree Cir, Suite 100
Allen, TX 75013

Drug Testing Near Me

Are you in Greenville, TX and searching for drug testing close to you? Accredited Drug Testing, Inc. stands out as a trusted national leader in same-day drug and alcohol testing services, offering over 20,000 locations across the United States. Whether your needs involve a DOT-compliant test, a court-mandated examination, pre-employment screening, or testing for personal assurance, we guarantee a smooth, quick, and private scheduling process. Our certified collection centers and laboratory facilities provide precise and dependable results that conform to federal and Greenville, TX state compliance regulations. Reach out at (800) 221-4291 or effortlessly schedule online 24/7 to discover a drug testing center that suits your convenience. When vigilance, compliance, and peace of mind are paramount, Accredited Drug Testing is your go-to source for trustworthy on-time results.

Drug and Alcohol Testing Options

Urine Drug Testing Available Panels
5 Panel Drug Test (DOT/NON DOT)
5 Panel + Alcohol Drug Test
5 Panel + ETG Alcohol Drug Test
10 Panel Drug Test
10 Panel + ETG Alcohol Drug Test
12 Panel Drug Test
Hair Drug Testing Available Panels
5 Panel Hair Drug Test
5 Panel + ETG Hair Drug Test
10 Panel Hair Drug Test
12 Panel Hair Drug Test
14 Panel Hair Drug Test
16 Panel Hair Drug Test
Alcohol Drug Testing Available Panels
Alcohol Urine Drug Test
ETG Alcohol Test (Urine)
Breath Alcohol Test
Blood Alcohol Test
Peth Alcohol Blood Test
ETG Alcohol Test (Hair)

Customized Testing Options Available l Discounts available for Bulk Purchases l Onsite Drug Testing Services

How Urine Drug Testing Works

Urine drug testing is the most prevalent method for screenings, widely recognized nationwide, and the sole type approved for DOT-regulated drug tests in accordance with 49 CFR Part 40. This approach evaluates a urine sample to identify recent drug use, alcohol markers, or metabolites. The process is confidential, streamlined, and designed to produce legally defensible outcomes for employers, individuals, and judicial mandates.

Testing Methods & Collection Process

1. Donor Identity Verification

The donor furnishes legitimate government-issued identification and completes necessary chain-of-custody documentation before testing commencement.

2. Secure Collection Environment

Specimens are gathered in a controlled restroom setting, protecting the integrity of the test. Items may be restricted, water secured, and toilets dyed as part of security protocols.

3. Chain of Custody Documentation

A federally sanctioned Chain of Custody Form (CCF) ensures sample integrity from collection through laboratory analysis.

4. Temperature & Validity Checks

Post-collection, the specimen's temperature and appearance are validated. The laboratory conducts additional tests for validity, checking creatinine levels, pH, and specific gravity.

5. DOT Split Specimen

DOT urine samples are divided into two Bottle A for primary analysis and Bottle B for a retest if contested. For non-DOT tests, only one vial is collected.

6. Laboratory Screening & Confirmation

At SAMHSA-certified labs, samples undergo two-step analysis:

  • Initial Immunoassay Screen: detects drug classes.
  • Confirmation Testing: uses GC/MS or LC/MS to accurately identify specifics.

7. MRO Verification

A Medical Review Officer examines non-negative results, assessing potential medical explanations with the donor before finalizing.

How Long Do Urine Test Results Take?

  • Instant Urine Test: Negative outcomes same-day; positive results take 24-72 hours.
  • Lab-Based Urine Test: Negative results available in 24-48 hours.
  • DOT Drug Test: 1-3 business days depending on MRO review.
  • Urine EtG Alcohol Test: Typically processed within 24-48 hours.

Additional time may be necessary in cases like shy bladder or for further confirmation needs.

Benefits of Urine Drug & Alcohol Testing

  • The only DOT compliant option for federally regulated testing.
  • Effective at detecting recent usage, perfect for workplaces or post-accidents in Greenville, TX.
  • Cost-effective with speedy result turnaround.
  • Accepted by courts, employers, and agencies alike.
  • Instant screening available for quick assessments.
  • Accurate with GC/MS or LC/MS confirmations.

Limitations of Urine Drug & Alcohol Testing

  • Shorter detection span for drugs 1-7 days.
  • Vulnerability to tampering if not securely managed.
  • Incapable of demonstrating long-term usage patterns.
  • Requires restroom access for sample acquisition.
  • General tests exclude alcohol unless EtG/EtS is specified.

Despite some limitations, urine testing is vital and remains a common choice nationwide.

How Hair Drug Testing Works

Hair analysis for drugs and alcohol stands out as a dependable lab approach, ideal for assessing a person's substance usage over an extended period. Moving past the immediate detection found in urine testing, hair testing offers a comprehensive 90-day analysis window by scrutinizing metabolites found within hair strands. This method holds significant value in workplace drug policies, legal disputes, custody battles, and settings demanding an extensive view of an individual's history of substance involvement within Greenville, TX.

Testing Methods & Collection Process

1. Donor Identity Verification

Data integrity initiates when the donor cues valid ID and signs necessary consent forms, maintaining proper chain-of-custody.

2. Hair Collection Procedure

A trained specialist collects a small sample of hair, usually around 100-120 strands, cut close to the scalp. While the top of the head is prioritized, body hair serves as an alternative when necessary. The method is pain-free and completed under supervision.

3. Chain of Custody Documentation

Meticulous handling is documented in the Hair Drug Test Custody and Control Form, ensuring the whole procedure, from collection to examination, meets legal mandates.

4. Laboratory Preparation & Analysis

Under rigorous forensic precision in labs:

  • Decontamination: Washing to clear surface residues.
  • Cutting/Grinding: Segmenting for extraction readiness.
  • Extraction: Metabolite isolation from hair.

The specimen surpasses precise lab scrutiny:

  • Initial Screening - Detects drug categories via immunoassay analyses.
  • Confirmation Testing - Verifies specific drugs/metabolites using GC/MS or LC/MS.

5. Metabolite Detection

With metabolites ensconced as the hair grows, a steadfast record forms, presenting challenges to attempts at tampering it's a method resilient against deception.

6. MRO Review

Competent Medical Review Officers critically assess non-negative results, offer medical insight, and assert authenticity in delivering final results.

How Long Do Hair Test Results Take?

  • Standard Hair Test: Completion within 2-3 business days post sample delivery to the laboratory.
  • Complex Panels or Alcohol Testing (EtG/FAEE): Take up to 3-5 business days based on testing complexity.

Despite extending timelines than urine methods, hair examination stakes a claim in delivering unfailing results, proving indispensable for thorough substance history surveillance.

Benefits of Hair Drug & Alcohol Testing

  • 90-day coverage exposes sustained usage patterns.
  • Resists evasion extremely hard to alter or fake.
  • Establishes records of ongoing or sporadic use cessation.
  • Vital to legal matters, custody evaluation, and jurisdictional programs.
  • Promotes easy, quick sample collection.
  • Verification durability through GC/MS or LC/MS.

Limitations of Hair Drug & Alcohol Testing

  • Limited in discerning recent substance intake (first 5-7 days).
  • Higher overall cost alongside urine or saliva analyses.
  • Body hair cannot specify concrete timelines post-substance use.
  • Substance incorporation may vary per hair type and growth.
  • Not recognized by DOT testing stipulations.

While certain drawbacks exist, hair testing upholds its position as a proactive tool for long-lasting substance auditing, adored by employers, legal experts, and individuals seeking fool-proof, tamper-free viability studies.

Alcohol & Drug Testing-How Each Method Works

In Greenville, TX, Accredited Drug Testing offers an extensive selection of alcohol and drug screening options tailored to align with employer, DOT, judicial, and personal requirements. Recognizing each method's unique qualities provides clarity in choosing the best fit, offering accurate, dependable results fully compliant with both federal and Greenville, TX state mandates. Our vast network of certified facilities, coupled with skilled Medical Review Officers, highlights our dedication to professionalism, ensuring precise testing results every time.

Alcohol Urine Drug Test

An alcohol urine test uncovers recent alcohol intake by revealing ethanol metabolites in urine samples. Though it estimates recent consumption within hours, rather than immediate impact, it's widely applied in workplace, legal, and post-incident scenarios as an effective, budget-friendly option.

ETG Alcohol Test (Urine)

The EtG urine test is engineered to identify alcohol use for up to 80 hours post-ingestion through its sensitivity to ethanol's direct byproducts. Used broadly in legal, rehab, and compliance monitoring, it surpasses conventional urine alcohol testing in detection duration, excelling in reliability and precision.

Breath Alcohol Test

Through the use of DOT-endorsed devices, a breath alcohol test assesses current impairment by measuring alcohol vapor from deep lung breath, delivering immediate and legitimate results. Essential for DOT-dependent employees and frequently employed for workplace protocols or under suspicious circumstances.

Blood Alcohol Test

A blood alcohol test precisely quantifies ethanol concentration in blood, offering the highest accuracy level in detecting impairment, pivotal in DUI investigations and legal probes where precise scrutiny is crucial.

PEth Alcohol Blood Test

The PEth blood test serves as a discerning measure for chronic alcohol consumption, identifiable via unique biomarkers within red blood cells. Effective for monitoring persistent alcohol use over weeks, it is selectively employed in family law, treatment facilities, and safety-sensitive sectors.

ETG Alcohol Test (Hair)

An EtG hair test encompasses a 90-day detection span, evaluating alcohol use over prolonged durations through hair shaft metabolites. Favorable for legal and custody proceedings, it remains obstinately resistant to short-term abstinence tactics due to its intrinsic thematically.

Through knowledgeable direction, nationally recognized labs, and prompt arrangement, Accredited Drug Testing ensures every screening method furnishes appropriate, clear-cut, and regulatory-conforming outputs, aiding individuals and employers in maintaining compliance, security, and informed awareness.


Accredited Drug Testing provides nationwide drug and alcohol screening solutions, including urine, hair, EtG, PEth, and breath alcohol testing. Backed by SAMHSA-certified laboratories, DOT 49 CFR Part 40 compliance, and scientifically validated testing technology, our services ensure accurate, defensible, and confidential results for employers, courts, and individuals.

Frequently Asked Questions

Urine tests detect recent use and are the only option approved for DOT testing under 49 CFR Part 40. Hair tests provide a 90-day detection window per the Society of Hair Testing (SoHT). Alcohol testing options, EtG, breath, blood, or PEth. These tests can identify recent use, impairment, or long-term drinking behavior depending on the method.

Urine: 24 - 48 hrs for negatives (SAMHSA guidelines).
Hair: 2 - 5 business days due to multi-step forensic processing (SoHT).
Breath Alcohol: Immediate results using NHTSA-approved EBT devices.
PEth: 3 - 5 days based on forensic toxicology studies.

Lab confirmation using GC/MS or LC/MS is the gold standard per SAMHSA & DOT.
Hair testing is highly tamper-resistant (SoHT).
PEth is considered the most reliable marker of repeated drinking (Journal of Analytical Toxicology).

No. DOT-regulated urine tests require validity checks and chain-of-custody documentation (49 CFR Part 40). Hair tests undergo decontamination and metabolite extraction (SoHT), making them extremely difficult to adulterate.

EtG urine detects alcohol for up to 80 hours (NIH/SAMHSA studies). EtG hair detects chronic alcohol consumption for up to 90 days (SoHT alcohol guidelines).

5 Panel DOT:49 CFR Part 40. Expanded non-DOT panels add benzodiazepines, barbiturates, methadone, oxycodone, MDMA, fentanyl, and more (SAMHSA forensic panel standards).

PEth blood testing identifies long-term and heavy alcohol use for 2 - 4 weeks. Used in child custody, treatment monitoring, and professional compliance programs (CDC & Journal of Analytical Toxicology).

Hair testing does not detect drug use within the past 5 - 7 days. It identifies long-term or repetitive use patterns per SoHT standards.

Yes. Results follow strict chain-of-custody procedures, DOT/SAMHSA requirements, GC/MS or LC/MS confirmation, and MRO review; making them acceptable in court, DOT, and legal settings.

Yes. Accredited Drug Testing offers same-day appointments at 20,000+ locations nationwide, instant testing options, and onsite employer testing with bulk discounts.

Customer Reviews

Very professional and very quick

Very professional and very quick service to schedule appointments! I am pleased with the services and would definitely recommend using them for any drug testing needs!

Carrie Feerick - 4/19/2025

Quick, Polite, Informative

Everyone has been quick to respond, polite, informative. It's been easy to order tests. I would recommend them to anyone to use.

April Rogers - 2/15/2025

Super Helpful

Detricia was super helpful in making sure that the drug test is sent my worker for was the right one I needed for my company to be compliant with my customers drug test requirements.

Kevin Howell - 12/19/2024

Saved My CDL!

Time was running out before my Cdl got downgraded because of a violation I had on clearinghouse. I couldn't find an employer to send me for my return to duty test, but these guys had my test scheduled and done in the same day! They saved my cdl. Thank you again!

Michael Williams - 12/2/2024

Excellent service!

Excellent service! Trish went above and beyond to find me a testing site as close to my home as possible. Results were faster than expected, as well. Thanks for your help, Trish and Accredited!

Es Hache - 4/13/2025


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(800) 221-4291