Drug & Alcohol Testing Near Me - Greenbelt, MD

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

31 Drug-Testing Centers in Greenbelt

Minutes Away, Test Today

7933 Belle Point Dr0.91 miles

7933 Belle Point Dr
Greenbelt, MD 20770

6201 Greenbelt Rd, Suite M31.75 miles

6201 Greenbelt Rd, Suite M3
College Park, MD 20740

10117 Palamar Dr2.65 miles

10117 Palamar Dr
Lanham, MD 20706

10452 Baltimore Ave2.80 miles

10452 Baltimore Ave
Beltsville, MD 20705

4729 Sellman Rd2.81 miles

4729 Sellman Rd
Beltsville, MD 20705

4451 Parliament Pl Ste G4.36 miles

4451 Parliament Pl Ste G
Lanham, MD 20706

3510 Heidi Ln5.02 miles

3510 Heidi Ln
Springdale, MD 20774

12200 Annapolis Rd, Suite 1205.09 miles

12200 Annapolis Rd, Suite 120
Glenn Dale, MD 20769

P. O. Box 3766.06 miles

P. O. Box 376
Laurel, MD 20725

13823 Outlet Dr6.62 miles

13823 Outlet Dr
Silver Spring, MD 20904

11947 Winged Foot Ct7.63 miles

11947 Winged Foot Ct
Waldorf, MD 20602

920 Varnum St Ne7.66 miles

920 Varnum St Ne
Washington, DC 20017

On-site Only7.70 miles

On-site Only
Laurel, MD 20724

1600a Brightseat Rd Apt 3017.79 miles

1600a Brightseat Rd Apt 301
Hyattsville, MD 20785

3676 Alpen Greenway7.89 miles

3676 Alpen Greenway
Burtonsville, MD 20866

8700 Central Ave Ste 2047.95 miles

8700 Central Ave Ste 204
Landover, MD 20785

8121 Georgia Ave Ste 2088.16 miles

8121 Georgia Ave Ste 208
Silver Spring, MD 20910

4121 Minnesota Ave Ne8.27 miles

4121 Minnesota Ave Ne
Washington, DC 20019

1401 Blair Mill Rd Apt 12228.47 miles

1401 Blair Mill Rd Apt 1222
Silver Spring, MD 20910

12555 Central Ave. Ste A&f8.53 miles

12555 Central Ave. Ste A&f
Chino, CA 91710

8768 Susini Dr8.61 miles

8768 Susini Dr
Laurel, MD 20723

11435 Abbottswood Ct8.68 miles

11435 Abbottswood Ct
Upper Marlboro, MD 20774

11435 Abbottswood Ct8.68 miles

11435 Abbottswood Ct
Largo, MD 20774

9801 Georgia Ave Ste 2229.00 miles

9801 Georgia Ave Ste 222
Silver Spring, MD 20902

3060 Mitchellville Rd9.13 miles

3060 Mitchellville Rd
Bowie, MD 20716

4000 Mitchellville Rd Ste A112,9.14 miles

4000 Mitchellville Rd Ste A112,
Bowie, MD 20716

9141 Alaking Ct Ste 1129.37 miles

9141 Alaking Ct Ste 112
Capitol Heights, MD 20743

3422 Georgia Ave Nw9.40 miles

3422 Georgia Ave Nw
Washington, DC 20010

11002 Veirs Mill Rd Ste 7009.67 miles

11002 Veirs Mill Rd Ste 700
Wheaton, MD 20902

911 U St Nw10.05 miles

911 U St Nw
Washington, DC 20001

Onsite Only10.51 miles

Onsite Only
Largo, MD 20774

Drug Testing Near Me

Searching for Nearby Drug Testing Facilities?

In Greenbelt, MD and across the nation, Accredited Drug Testing, Inc. stands out as a premier provider of immediate drug and alcohol testing services, offering convenience through a vast network of over 20,000 locations nationwide. Whether your requirement is for a DOT-regulated examination, a court-mandated screening, pre-employment testing, or individual assessments, we ensure the process is swift, straightforward, and confidential. Our accredited collection sites and laboratories guarantee precise, dependable results that adhere to Federal and Greenbelt, MD state compliance laws. Simply dial (800) 221-4291 or book online anytime to discover a drug testing center near you.

When utmost safety, adherence to regulations, and peace of mind are paramount, Accredited Drug Testing provides reliable, punctual results every time, nationwide and in Greenbelt, MD.

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

In Greenbelt, MD, urine drug testing represents the most commonly adopted screening technique across the United States and remains the sole approved method for DOT-regulated testing under 49 CFR Part 40. This technique tests for recent substance use by examining urine samples for drugs, drug metabolites, or alcohol biomarkers. It is conducted within standardized guidelines, ensuring privacy while delivering accurate and legally justifiable results suitable for employers, individuals, and court-mandated programs.

Testing Procedures & Collection Process

  • Verification of Donor Identity: The donor must present a valid government-issued ID and finish mandatory chain-of-custody documents before the commencement of testing.
  • Controlled Collection Environment: Urine samples are collected in a controlled restroom to prevent tampering, with personal items restricted, water sources secured, and toilet water colored to prevent sample alteration.
  • Chain of Custody Documentation: The Chain of Custody Form (CCF), federally recognized, meticulously traces the sample from collection to lab, ensuring result integrity and legal viability.
  • Temperature & Validity Checks: Post collection, both specimen temperature and appearance are checked. The laboratory also undertakes validity testing, including checks for creatinine levels, pH, specific gravity, and the presence of adulterants.
  • DOT Split Specimen: For DOT urine testing, samples are divided into two vials - Bottle A for primary testing and Bottle B reserved for retesting if the donor contests the result. Non-DOT tests use a single vial.
  • Laboratory Screening & Confirmation: Samples processed in SAMHSA-certified labs undergo a two-step testing: Initial Immunoassay Screen for detecting drug classes, followed by GC/MS or LC/MS confirmation testing for precise identification.
  • MRO Verification: A certified Medical Review Officer reviews non-negative findings, verifying their accuracy and discussing potential medical reasons with the donor before finalizing and releasing results.

How Long Do Urine Test Results Take?

Additional time may be required for shy bladder situations, invalid specimens, or if laboratory confirmation or donor contact is needed.

Benefits of Urine Drug & Alcohol Testing

Despite these limitations, urine testing remains the most practical and widely used method for drug and alcohol screening nationwide.

How Hair Drug Testing Works

Exploring Hair Drug and Alcohol Testing in Greenbelt, MD

Hair drug testing serves as a remarkably reliable mechanism, offering a thorough assessment of long-term substance usage patterns, essential for judicial proceedings, employment verifications, and more. In contrast to urine assessments which focus on recent intakes, hair testing permits a comprehensive 90-day detection period through the scrutiny of drug remnants within the hair strands.

Test Procedure & Process

Step 1: Verification of Donor Identity

The initial stage involves validating the donor's identity using a legitimate government ID, complemented by capturing necessary signatures for consent and custody chain.

Step 2: Collecting Hair Samples

A certified collector attains an approximated sample usually 100 to 120 hair strands, cut closely at the scalp. While the collection preferably happens at the head's crown, alternatives include body hair. The fast and site-supervised procedure ensures meticulous observation.

Step 3: Documenting Chain of Custody

The Hair Drug Test Custody and Control Form meticulously records the collection, sealing, and transporting of the sample, ensuring results maintain their legal soundness and protection throughout.

Step 4: Laboratory Analysis

Inside the laboratory, the hair methodically undergoes a sequence of forensic steps:

Subsequently, the sample proceeds with highly analytic forensic scrutiny:

Step 5: Detecting Metabolites

As metabolites integrate into the hair structure during growth, the hair provides a credible, lasting history of drug intake, resisting alteration or deception attempts.

Step 6: MRO Verification

A certified Medical Review Officer evaluates non-negative outcomes for verification of accuracy, to consider medicinal reasons, and to stipulate conclusive results.

Hair Test Duration and Factors

Owing to the intricate laboratory phases, hair testing turnaround may extend beyond urine testing but offers unparalleled reliability.

Advantages of Utilizing Hair Drug & Alcohol Testing

With its extensive applications in Greenbelt, MD, hair analysis remains a leading choice for tracing prolonged substance behavior, valued by employers, legal professionals, and self-monitors alike.

Alcohol & Drug Testing-How Each Method Works

Accredited Drug Testing offers a comprehensive suite of alcohol and drug testing methodologies, exquisitely engineered to accommodate the needs of employers, DOT regulations, legal prerequisites, and individual testing circumstances, including those in Greenbelt, MD. Profoundly understanding each test leads to precise selection, reliable outcomes, and absolute conformity with both federal and state statutes. Our wide-reaching network, certified labs, and apt Medical Review Officers establish the accuracy, credibility, and professionalism needed for trustworthy test results.

Urine-Based Alcohol Test

An alcohol urine test pinpoints recent alcohol intake by detecting ethanol metabolites within urine. This technique is notably utilized for workplace assessments, legal obligations, and post-accident inquiries. It doesn't quantify immediate impairment but offers a fleeting detection range of a few hours, representing a swift, economical screening landscape.

ETG Alcohol Test (Urine)

The EtG (Ethyl Glucuronide) urine analysis is a nuanced method with the ability to recognize alcohol consumption up to 80 hours after uptake. EtG, a straightforward metabolite of ethanol, positions this test as highly favored by legal systems, rehabilitation initiatives, and compliance watching agencies, offering a protracted observation span while sustaining reliability and precision.

Breath Alcohol Test

A breath alcohol test evaluates present impairment by assessing the alcohol level in deep lung air. These analyses employ DOT-validated breath alcohol apparatus (EBTs), providing immediate, legally formidable outcomes. Breath evaluation is obligatory for DOT-regulated staff members and regularly applied in occupational, post-accident, and reasoned suspicion evaluations.

Blood Alcohol Test

Through measuring ethanol's presence within the bloodstream, a blood alcohol analysis stands as one of the most exact methodologies for confirming impairment. Used by healthcare establishments, law enforcement, and legal personnel, blood alcohol testing's exactness is particularly pivotal in DUI procedures, urgent medical care, and extensive legal investigations.

PEth Alcohol Blood Test

A PEth (Phosphatidylethanol) blood test traces indicators of prolonged or heavy alcohol consumption by isolating alcohol-specific biomarkers within red blood cells. This test has the capability to identify use spanning 2-3 weeks and is accepted as a top-tier indication of enduring drinking habits. Its implementation spans family court hearings, monitoring schemes, treatment facilities, and pre-employment screenings in safety-focused fields.

ETG Alcohol Test (Hair)

The EtG hair-based alcohol analysis offers a 90-day detection span by assessing alcohol-derived metabolites ingrained within hair. This procedure tracks trends of sustained or repetitive alcohol use rather than single occurrences. Due to its detail, stability, and non-sensitivity to short-live sobriety attempts, it has become a cornerstone in legal situations, child custody cases, and prolonged surveillance programs.

With professional insights, nationally accredited labs, and prompt scheduling services, Accredited Drug Testing ensures that each alcohol evaluation method produces definitive, transparent, and compliant results, assisting both individuals and businesses to remain informed, secure, and thoroughly compliant with regulatory standards.


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 easy to get scheduled

Very easy to get scheduled and easy process once checked in and the staff were all extremely friendly! I would recommend this company!

Ronickia Moore - 11/19/2024

they have made my job much easier

I always have a good experience setting up company driver drug screens through ADT. I'm really happy I found them while searching online, they have made my job much easier.

Exodus Heath - 2/13/2025

Super helpful and courteous

I've had to use this service twice for out of state physicians we've hired and both times it was super easy. Both customer service reps I spoke with were super helpful and courteous. I won't hesitate to use their service again if needed.

Alicia Rau - 6/19/2024

Smooth and Seamless

I use their service for new hire and DOT employee's. Spoke with Taisha Walker this morning, and she was very helpful. She made the process smooth and seamless.

Christina Galdos - 3/9/2025

phone support has been excellent

I have used ADT several times. Their phone support has been excellent, both when putting in the orders and when asking for help to interpret results.

Tee Ess - 12/19/2024


Sources


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(800) 221-4291