Drug & Alcohol Testing Near Me - Rockville, 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

30 Drug-Testing Centers in Rockville

Minutes Away, Test Today

15005 Shady Grove Rd Ste 4502.40 miles

15005 Shady Grove Rd Ste 450
Rockville, MD 20850

15225 Shady Grove Road, Suite 2072.50 miles

15225 Shady Grove Road, Suite 207
Rockville, MD 20850

9707 Medical Center Dr Ste 120,2.55 miles

9707 Medical Center Dr Ste 120,
Rockville, MD 20850

14800 Physicians Ln Ste 1313.30 miles

14800 Physicians Ln Ste 131
Rockville, MD 20850

431 N Frederick Ave Gaithersburg4.45 miles

431 N Frederick Ave Gaithersburg
Gaithersburg, MD 20877

8945 N Westland Dr4.45 miles

8945 N Westland Dr
Gaithersburg, MD 20877

Po Box 598154.85 miles

Po Box 59815
Rockville, MD 20859

803 Russell Ave5.74 miles

803 Russell Ave
Gaithersburg, MD 20879

11002 Veirs Mill Rd Ste 7006.37 miles

11002 Veirs Mill Rd Ste 700
Wheaton, MD 20902

8218 Wisconsin Ave Ste 2087.05 miles

8218 Wisconsin Ave Ste 208
Bethesda, MD 20814

18111 Prince Philip Dr, Ste T127.09 miles

18111 Prince Philip Dr, Ste T12
Olney, MD 20832

9801 Georgia Ave Ste 2227.54 miles

9801 Georgia Ave Ste 222
Silver Spring, MD 20902

12321 Middlebrook Rd8.63 miles

12321 Middlebrook Rd
Germantown, MD 20874

19785 Crystal Rock Dr8.83 miles

19785 Crystal Rock Dr
Germantown, MD 20874

19785 Crystal Rock Dr, Ste 3088.85 miles

19785 Crystal Rock Dr, Ste 308
Germantown, MD 20874

12321 Middlebrook Road Suite 1018.86 miles

12321 Middlebrook Road Suite 101
Germantown, MD 20879

1401 Blair Mill Rd Apt 12229.16 miles

1401 Blair Mill Rd Apt 1222
Silver Spring, MD 20910

20528 Boland Farm Rd Ste 205,9.19 miles

20528 Boland Farm Rd Ste 205,
Germantown, MD 20876

8121 Georgia Ave Ste 2089.36 miles

8121 Georgia Ave Ste 208
Silver Spring, MD 20910

42010 Village Center Plz9.48 miles

42010 Village Center Plz
Stone Ridge, VA 20105

13823 Outlet Dr11.05 miles

13823 Outlet Dr
Silver Spring, MD 20904

3676 Alpen Greenway11.86 miles

3676 Alpen Greenway
Burtonsville, MD 20866

3422 Georgia Ave Nw12.57 miles

3422 Georgia Ave Nw
Washington, DC 20010

920 Varnum St Ne12.96 miles

920 Varnum St Ne
Washington, DC 20017

10452 Baltimore Ave13.15 miles

10452 Baltimore Ave
Beltsville, MD 20705

911 U St Nw13.43 miles

911 U St Nw
Washington, DC 20001

4729 Sellman Rd13.43 miles

4729 Sellman Rd
Beltsville, MD 20705

2440 M St Nw Ste 414,13.48 miles

2440 M St Nw Ste 414,
Washington, DC 20037

920 W Broad St Ste B13.51 miles

920 W Broad St Ste B
Falls Church, VA 22046

46440 Benedict Dr Ste 10813.57 miles

46440 Benedict Dr Ste 108
Sterling, VA 20164

Drug Testing Near Me

Need Drug Testing Services Nearby?

Accredited Drug Testing, Inc. stands as a leading authority in the provision of prompt and reliable drug and alcohol testing services throughout the nation, including the beautiful state of Rockville, MD. We boast an extensive network encompassing more than 20,000 locations across the United States, offering highly accessible same-day testing services. Whether you require a Department of Transportation (DOT) compliant test, a screening mandated by court order, a pre-employment drug examination, or even a personal test, we ensure that the entire process is swift, straightforward, and conducted confidentially. Our team utilizes certified collection sites and sophisticated laboratories, guaranteeing precise and trustworthy results that adhere to both federal and state compliance regulations. Simply dial (800) 221-4291 or schedule online 24/7 to locate a accessible drug testing center near you. When it comes to ensuring safety, meeting compliance requirements, and achieving peace of mind, Accredited Drug Testing consistently delivers trusted and timely results, now extending our commitment to the islands of Rockville, 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 Rockville, MD and beyond, urine drug testing stands out as the predominant method for detecting illicit substance use. It's recognized as the sole testing method approved for DOT-regulated drug assessments under 49 CFR Part 40, making it indispensable for safety-sensitive roles. This testing involves analyzing a urine sample to uncover drugs, drug metabolites, or alcohol markers, offering a proven approach for employers, individuals, and legal mandates. The entire process ensures confidentiality while providing results that are both prompt and defensively lawful, adapting to the needs of diverse stakeholders.

Testing Methods & Collection Process

  • Identity Verification: The individual undergoing the test presents a valid government identification to ensure authenticity, initiating a proper chain-of-custody procedure.
  • Controlled Collection Environment: Urine samples are gathered in a controlled setting that prevents any tampering, with measures including restricted personal items, secured water sources, and dyed toilet water.
  • Chain of Custody Documentation: From collection to lab analysis, a Chain of Custody Form (CCF) ensures the sample's security and legal defensibility.
  • Validity Checks: The specimen's temperature and appearance are promptly checked post-collection, with the lab conducting further tests for creatinine levels, pH, specific gravity, and any potential adulterants.
  • Split Specimen Method: For DOT purposes, tests use a split specimen approach, dividing the sample into two vials one for initial analysis and the other reserved for retesting upon contention of the first result.
  • Lab Analysis: SAMHSA-certified laboratories deploy a two-pronged testing technique starting with an immunoassay screen to categorize drug classes followed by GC/MS or LC/MS confirmations to detail specific substances.
  • Medical Review Officer (MRO) Process: In cases of non-negative outcomes, an MRO ensures the accuracy and evaluates potential medical justifications prior to result finalization.

Projected Result Turnaround for Urine Tests:

  • Instant Urine Test: Negative results available the same day. Positives proceed to lab confirmation within 24-72 hours.
  • Lab-Based Urine Examination: Generally, negative results are available within 24-48 hours.
  • DOT Drug Test: Results span 1-3 business days, influenced by MRO evaluations and donor communication.
  • EtG Alcohol Test: Outcomes typically take 24-48 hours.
  • Conditions may vary slightly based on individual testing scenarios such as shy bladder, invalid specimens, or necessary lab validations.

Advantages of Urine Drug & Alcohol Testing

Constraints of Urine Drug & Alcohol Testing

Despite such constraints, urine testing maintains its status as a preferred choice for drug and alcohol evaluation on a national scale, including throughout Rockville, MD, owing to its practicality and effectiveness.

How Hair Drug Testing Works

Hair drug and alcohol testing offers a dependable laboratory methodology for illustrating long-term substance use habits. In contrast to urine examinations, which capture recent indulgences, hair tests highlight a 90-day window of drug presence through metabolites lodged within hair fibers. Such a method is ideal for workplace policies, judicial proceedings, child custody deliberations, and extended substance monitoring needs, with availability in Rockville, MD.

Testing Methods & Collection Process

1. Donor Identity Verification

Collection initiates with the presentation of a government-issued ID, coupled with the execution of consent and chain-of-custody paperwork critical for legitimate documentation.

2. Hair Collection Procedure

Specialized collectors obtain a hair sample, roughly 100-120 strands, close to the examiner's scalp, favoring the crown. If head hair is sparse, body hair is a permissible substitute. This swift, non-invasive procedure occurs under direct scrutiny.

3. Chain of Custody Documentation

A meticulous Hair Drug Test Custody and Control Form accompanies the sample detailing the collection, sealing, and segway to labs, securing the integrity and legality of the outcome.

4. Laboratory Preparation & Analysis

Upon laboratory reception, the hair specimen undergoes intricate forensic scrutiny:

Succeeding foundational preparations, samples endure precise lab testing:

5. Metabolite Detection

Embedded in the hair as it grows, metabolites establish a thorough timeline, practically impervious to deceit through adulteration.

6. MRO Review

An accredited Medical Review Officer authenticates any non-negative findings, probing potential medical justifications prior to certifying final results.

How Long Do Hair Test Results Take?

Though slightly more time-consuming than urine test modalities due to comprehensive processing stages, hair testing guarantees unparalleled detection reliability.

Benefits of Hair Drug & Alcohol Testing

  • Extensive 90-day detection capacity for persistent substance exploration.
  • Near-impossible to subvert or mislead integrity.
  • Discloses periodic, stable, or discontinued usage chronicles.
  • Highly applicable to judicial, custodial, and program compliance scenarios.
  • Promptative and minimally invasive collection practices.
  • Robust validation through GC/MS or LC/MS confirmation technology.

Limitations of Hair Drug & Alcohol Testing

  • Inept at identifying very recent drug activity (within 5-7 days post-consumption).
  • Costs exceed that of urine or saliva tests.
  • Body hair lacks specific timeframe congruity.
  • Varying absorption pertinent to hair type and growth rate may occur.
  • Inapplicable for DOT regulatory purposes.

Nonetheless, hair-based evaluations remain a highly esteemed tool for discerning enduring consumption patters and widely practiced by employers, legal entities, and individuals desiring bulletproof and covert-resistant results.

Alcohol & Drug Testing-How Each Method Works

Offering a broad array of alcohol and drug testing services tailored to the needs of employers, the DOT, legal requirements, and personal reasons, Accredited Drug Testing ensures precision across all facets. By understanding each method's mechanism, clients receive results that are not only accurate but also compliant with both federal and Rockville, MD state laws. Our extensive national network, accompanied by certified laboratories and proficient Medical Review Officers, pledges the highest standards of professional testing execution.

Alcohol Urine Drug Test

Detection of recent alcohol consumption is made possible through an alcohol urine test, which identifies ethanol metabolites. This cost-effective method is frequently employed in occupational settings, court orders, or post-incident assessments. The test covers a brief detection timeframe, providing quick results while not directly reflecting impairment levels.

ETG Alcohol Test (Urine)

Favored within judicial, rehabilitation, and compliance domains, the EtG urine test is renowned for its ability to detect alcohol consumption up to 80 hours post-ingestion. EtG's association as a byproduct of ethanol consumption enables the test to deliver accuracy and longevity in its detection capacity.

Breath Alcohol Test

By examining the alcohol concentration within deep lung air, breath alcohol testing showcases current levels of impairment. Administered using DOT-sanctioned devices, these tests provide instantaneous legal outcomes and are essential in DOT employment screenings, post-accident checks, and cases of suspected intoxication.

Blood Alcohol Test

Renowned for its precision, a blood alcohol test quantifies ethanol levels directly from the bloodstream. Trusted by medical facilities, law enforcement, and judicial institutions, this testing method is indispensable for DUI investigations, urgent medical cases, and significant legal inquiries.

PEth Alcohol Blood Test

Identifying chronic alcohol misuse through biomarkers within red blood cells, the PEth blood test detects usage extending to 2-3 weeks. Its reliability as an indicator of drinking patterns is widely applied in family law, treatment assessments, and pre-employment screening actions.

ETG Alcohol Test (Hair)

Providing a 90-day observation period, the EtG hair alcohol test assesses alcohol metabolites located in hair shafts, revealing trends of repeated or prolonged consumption. Due to its accuracy and stability, this test finds common use in courts, child custody determinations, and ongoing monitoring regimens.

With guidance from seasoned professionals, access to nationally recognized laboratories, and swift test scheduling, Accredited Drug Testing guarantees that each alcohol screening result is precise, defensible, and aligns with compliance standards, supporting individuals and employers in retaining informed, secure, and compliant practices.


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

Super Easy to Schedule

Super easy to schedule and get what you need, weather for a job, personal, or court ordered! I believe I spoke with Justine who was helpful in answering all my questions and stayed on the phone with me until she was sure I was all set and got the emails I needed.

Mandy Ryan - 12/14/2024

Kind and very helpful

Called around for hours and posted from company to person and got nowhere and had to fight to get a refund die to there miss information, well save time and sanity Acredited is the ONLY place the person was kind and very helpful, said what I needed and Faith the lady I dealt with made it simple and she did above and beyond everything I needed, as I'm going through a devorse this was a great help and made my day 100 stars from me.

Steven Harrison - 12/19/2024

This is by far the easiest

This is by far the easiest way to get my lab work ordered and paid for. The phone calls are short and to the point. They don’t try to push extra sales on you and when I walk in to the clinic I simply show my donor pass and with in a matter of minutes I’m done. I will continue to use ADT in the future.

Jason Jackson - 7/19/2025

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

Fast service and friendly staff!

Fast service and friendly staff! Could not recommend enough for drug testing services.

Habib Malik - 4/12/2025


Sources


Rockville Drug Testing

Quickly find trusted local drug testing centers in Rockville, MD — fast, convenient, and reliable every time!

Rockville DOT Drug Testing

Quickly find a local DOT drug testing center in Rockville, MD — fast, reliable, convenient nationwide service!

Rockville DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Rockville, MD.

Rockville Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Rockville, MD.v

Rockville Hair Drug Testing

Get fast, accurate hair drug testing at our convenient Rockville, MD locations—results you can trust, every time!

Rockville Alcohol Testing

Fast, reliable alcohol testing to keep your workplace safe and compliant every single day in Rockville, MD.

Rockville Drug Testing Services

Reliable nationwide drug testing services ensuring accuracy, compliance, and quick results for businesses and individuals in Rockville, MD.

Rockville 5 Panel Drug Test

Accurate 5 panel drug testing with fast, confidential results—trusted by Rockville, MD employers and individuals nationwide.

Rockville 10 Panel Drug Test

Comprehensive 10 panel drug testing with fast, reliable results—trusted for Rockville, MD workplace and personal testing needs.

Rockville On Site Drug Testing

Convenient on-site mobile drug testing with fast, reliable results—saving time while keeping your Rockville, MD workplace compliant.

Rockville DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Rockville, MD drivers compliant and on the road with confidence.

DOT Consortium

Join our DOT consortium for hassle-free compliance, random testing management, and reliable driver safety solutions.

(800) 221-4291