✓ Same-Day Walk-Ins Welcome ✓ Digital Donor Pass in Minutes ✓ No Doctor Order Required ✓ SAMHSA-Certified Labs

Drug Testing Locations in Potomac, MD

With 31 testing centers in the Potomac area, we offer drug and alcohol testing for employment, probation and DOT requirements. Additional services include DOT consortium enrollment, DNA Testing and background checks. Order your tests and services online or call (800) 221-4291.

Urine (5, 10, 12, 14-Panel) Hair Follicle (90-Day) DOT Drug & Alcohol Court & Probation Oral Fluid / Saliva EtG Alcohol
🕑 Collection Site Hours: Monday – Friday: 8:00 AM – 4:00 PM • ✓ Walk-in with Electronic Donor Pass • Saturday – Sunday: Closed

31 Drug-Testing Centers in Potomac

Same-Day Electronic Donor Pass Accepted at All Locations Below

Minutes Away, Test Today

Po Box 59815

1.01 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
Po Box 59815
Rockville, MD 20859

42010 Village Center Plz

4.63 mi
🕑 Testing Hours: Mon–Sat: 8:00 AM-8:00 PM✓ Walk-in with Electronic Donor Pass
42010 Village Center Plz
Stone Ridge, VA 20105

14800 Physicians Ln Ste 131

5.59 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
14800 Physicians Ln Ste 131
Rockville, MD 20850

9707 Medical Center Dr Ste 120,

5.66 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-11:00 AM & 1:00 PM-2:30 PM✓ Walk-in with Electronic Donor Pass
9707 Medical Center Dr Ste 120,
Rockville, MD 20850

15005 Shady Grove Rd Ste 450

5.84 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
15005 Shady Grove Rd Ste 450
Rockville, MD 20850

15225 Shady Grove Road, Suite 207

6.22 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-11:30 AM & 1:00 PM-2:00 PM✓ Walk-in with Electronic Donor Pass
15225 Shady Grove Road, Suite 207
Rockville, MD 20850

8218 Wisconsin Ave Ste 208

6.31 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
8218 Wisconsin Ave Ste 208
Bethesda, MD 20814

8945 N Westland Dr

8.51 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
8945 N Westland Dr
Gaithersburg, MD 20877

431 N Frederick Ave Gaithersburg

8.51 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
431 N Frederick Ave Gaithersburg
Gaithersburg, MD 20877

11002 Veirs Mill Rd Ste 700

8.56 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
11002 Veirs Mill Rd Ste 700
Wheaton, MD 20902

100 Maple Ave E

8.61 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
100 Maple Ave E
Vienna, VA 22180

9801 Georgia Ave Ste 222

8.92 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
9801 Georgia Ave Ste 222
Silver Spring, MD 20902

920 W Broad St Ste B

8.96 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
920 W Broad St Ste B
Falls Church, VA 22046

106 Elden St Ste 18b,

9.16 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
106 Elden St Ste 18b,
Herndon, VA 20170

208 Elden St

9.36 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
208 Elden St
Herndon, VA 20170

803 Russell Ave

9.43 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
803 Russell Ave
Gaithersburg, MD 20879

1401 Blair Mill Rd Apt 1222

9.67 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1401 Blair Mill Rd Apt 1222
Silver Spring, MD 20910

46440 Benedict Dr Ste 108

9.95 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
46440 Benedict Dr Ste 108
Sterling, VA 20164

8121 Georgia Ave Ste 208

9.96 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
8121 Georgia Ave Ste 208
Silver Spring, MD 20910

462 Herndon Pkwy Ste 103

10.05 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
462 Herndon Pkwy Ste 103
Herndon, VA 20170

3020 Hamaker Court, B-110

10.47 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3020 Hamaker Court, B-110
Fairfax, VA 22031

1005 N Glebe Rd Ste 140

10.59 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1005 N Glebe Rd Ste 140
Arlington, VA 22201

8316 Arlington Blvd Ste 206

10.61 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
8316 Arlington Blvd Ste 206
Fairfax, VA 22031

21525 Ridgetop Cir Ste 260

10.65 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
21525 Ridgetop Cir Ste 260
Sterling, VA 20166

21036 Tripleseven Rd

10.72 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
21036 Tripleseven Rd
Sterling, VA 20165

8501 Arlington Blvd Ste 120,

10.72 mi
🕑 Testing Hours: Mon–Fri: 7:30 AM-3:30 PM • Sat: 7:00 AM-10:30 AM✓ Walk-in with Electronic Donor Pass
8501 Arlington Blvd Ste 120,
Fairfax, VA 22031

3301 Wilson Blvd

10.99 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3301 Wilson Blvd
Arlington, VA 22201

6064 Arlington Blvd, Falls Church Medical Center

11.01 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
6064 Arlington Blvd, Falls Church Medical Center
Falls Church, VA 22044

2 Pidgeon Hill Dr Suite 120,

11.07 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2 Pidgeon Hill Dr Suite 120,
Sterling, VA 20165

2 Lyndhurst Ct

11.20 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2 Lyndhurst Ct
Sterling, VA 20165

12321 Middlebrook Road Suite 101

11.23 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
12321 Middlebrook Road Suite 101
Germantown, MD 20879

Employment, DOT, Court Ordered, Probation, Family

Accredited Drug Testing offers a full suite of drug and alcohol screening services across 31 centers in Potomac, Maryland. Our services encompass DOT and non-DOT urine drug analysis, breath alcohol evaluations, EtG alcohol tests, and hair follicle drug screening tailored for private, corporate, and legal purposes. In Potomac, MD, we ensure rapid test results with SAMSA certified labs, providing same-day appointments, and most testing centers are conveniently located within close proximity to either your residence or workplace. Services extend to Occupational Health, Clinical Testing, and Background Verification.

Dial (800) 221-4291 or access our online portal to register today. Choose your desired test, pick a location nearby—screenings are accessible for personal use, employee testing, or other individuals. Scheduling is quick and straightforward; contact our scheduling team or book online any time, day or night. Our efficient, intuitive process streamlines the arrangement of drug tests near Potomac with ease.

* You must register by phone or online to receive your donor pass/registration prior to proceeding to the testing center. You must bring a valid government issued ID along with the registration/barcode number which was sent to you by email.

When you're searching for drug testing near me or drug testing locations, we provide a simple and convenient process to find a drug and alcohol testing location near you that is certified to provide all of your drug and alcohol testing needs.

How the Drug Testing Process Works in Potomac, MD

1

Order Online or Call

Select your test & search nearby Potomac collection sites.

2

Get Donor Pass

Receive your donor pass by email or SMS immediately.

3

Visit Collection Center

Walk in with donor pass & photo ID. No appointment needed.

4

Fast Results

Secure results delivered confidentially in 24-48 hours.

Potomac, MD Drug Testing

Drug Testing Services Available at Our Potomac, MD Labs:

At our Potomac drug testing collection sites, Accredited Drug Testing provides one of the widest selections of drug and alcohol testing services available. Whether you're an employer, attorney, court, or private individual, we offer both DOT and non-DOT testing options—ranging from rapid tests to comprehensive lab-based screenings—capable of detecting nearly any substance.

Mobile/On-Site Drug Testing

If you're an employer needing to test 25 or more employees and looking to save time and money, we offer mobile on-site drug testing where we come to you. Call us today for more information.

Official Legal & Regulatory Framework

Maryland Drug Testing Laws & Compliance in Potomac

SAMHSA Certified • MRO Verified

Accredited Drug Testing provides employer and individual screening in Potomac, MD adhering strictly to Md. Code Ann., Health-Gen. § 17-214, federal DOT 49 CFR Part 40 guidelines, and certified SAMHSA laboratory chain-of-custody standards.

Statutory Citation
Md. Code Ann., Health-Gen. § 17-214
Medical Marijuana
Legal
Recreational Cannabis
Legal
Workplace Rights
Zero-Tolerance Protected

Maryland Health-General § 17-214 mandates certified laboratory procedures and applicant notification rules while protecting employer drug-free policies.

Under Md. Code Ann., Health-Gen. § 17-214, employers in Potomac may institute comprehensive drug-free workplace programs including:

  • Pre-Employment Screening: Conditional job offer testing for all applicants.
  • Reasonable Suspicion Testing: Objective, documented behavioral signs of impairment.
  • Post-Accident Testing: Mandatory screening following workplace injuries or property damage.
  • Random Testing: Unannounced selection for safety-sensitive roles and machinery operators.
  • Workers' Comp Incentives: Verified testing programs provide premium discounts on state workers' compensation insurance policies.

While cannabis statutes continue evolving across the United States (Medical: Legal; Recreational: Legal in Maryland), employers retain the legal prerogative to prohibit substance impairment on job premises, during operational shifts, and while operating company vehicles.

Federal regulations, Department of Transportation (DOT) mandates, and safety-sensitive positions strictly prohibit marijuana use regardless of state cannabis status. ADT provides both standard THC screening and non-THC customized drug panels for private employers wishing to adapt to state-specific hiring preferences.

For commercial drivers, maritime operators, aviation crews, and transit personnel operating in Potomac, all testing follows rigorous Department of Transportation (DOT) standards governed by 49 CFR Part 40:

  • Federal 5-Panel Regulated Urine Screen: Tested for Marijuana, Cocaine, Amphetamines/Methamphetamines, Opioids (Codeine, Morphine, Heroin, Hydrocodone, Hydromorphone, Oxycodone, Oxymorphone), and PCP.
  • SAMHSA Accredited Laboratories: Zero compromise on testing accuracy with gas chromatography/mass spectrometry (GC/MS) confirmation.
  • Medical Review Officer (MRO): Every non-negative specimen is reviewed by a licensed physician MRO before reporting.
  • FMCSA Clearinghouse Reporting: Real-time reporting of verified positive tests and refusals to test into the federal driver clearinghouse database.

Accredited Drug Testing provides legally admissible drug and alcohol screening for county court dockets, child custody hearings, probation requirements, and pretrial diversion programs throughout Potomac and Maryland.

All specimens undergo observed or witnessed collection procedures when ordered by the court, accompanied by rigorous Federal Chain of Custody Forms (CCF). Turnaround time is rapid, and official certificates of analysis can be forwarded directly to your attorney, court case officer, or probation supervisor upon release.

Hyper-Local Proximity Coverage

Neighborhoods & Service Districts in Potomac, MD

Minutes Away, Same-Day Donor Pass

Accredited Drug Testing operates collection centers strategically positioned throughout Potomac to ensure fast donor access with minimal drive times. Walk-ins are welcomed with an immediate electronic donor pass across all major neighborhoods and transit corridors:

Key Potomac Neighborhoods Covered:

● Downtown Potomac ● Central Business District ● North Potomac Commercial Corridor ● South Potomac Industrial Park ● East Potomac Metro Area ● West Potomac Trade Center ● Medical & Healthcare District ● Airport / Logistics Corridor

Major Employment & Commercial Hubs Served:

Potomac Main Street Commercial District • Potomac Regional Trade Center • County Industrial Parkway • Metro Healthcare & Occupational Medical Corridor

Located anywhere in Potomac? Receive your electronic pass in under 5 minutes.
Order Test Online →

Surrounding Areas Served Near Potomac

North Potomac • Great Falls • Scotland • Cabin John • Travilah • Glen Echo • North Bethesda • Barton

Potomac, MD Drug & Alcohol Test Panels & Detection Windows

Select a test panel below to review specific drug compounds screened, detection timeframes, and instant electronic pass registration in Potomac.

Test Type & Local Panel Detection Window Common Use Cases in Potomac Turnaround Time
5-Panel Urine Screen in Potomac →
THC, Cocaine, Basic Opiates, Amphetamines, PCP
1 to 5 Days Pre-Employment, Workplace Safety & Non-DOT Randoms 24 to 48 Hours
10-Panel Urine Screen in Potomac →
Adds Benzodiazepines, Barbiturates, Methadone, Propoxyphene
1 to 7 Days Healthcare Staffing, Corporate Policies & Court Orders 24 to 48 Hours
Hair Follicle Drug Test in Potomac →
Long-term historical pattern analysis (90-day window)
Up to 90 Days Child Custody, Legal Defense & Executive Screening 3 to 5 Business Days
DOT Drug & Alcohol Test in Potomac →
49 CFR Part 40 compliant with CCF & MRO verification
1 to 5 Days FMCSA, FAA, FRA, FTA, USCG Regulated Drivers & Crew 24 to 48 Hours
ETG & Breath Alcohol in Potomac →
Evidential breath testing or 80-hour urine EtG metabolite
Breath: 0–12 Hrs
EtG: Up to 80 Hrs
Zero-Tolerance Workplace, Post-Accident & Probation Immediate to 48 Hours
DOT Physical Exam in Potomac →
FMCSA NRCME certified medical examiner card (Form MCSA-5876)
1 to 2 Year Card Commercial Driver License (CDL) Medical Certification Same-Day Medical Card
Full-Service Testing Solutions

Occupational Health & Specialized Screening in Potomac, MD

Beyond standard urine screening, Accredited Drug Testing delivers end-to-end occupational medical solutions, DOT credentialing, court-admissible forensic testing, and employer background compliance.

NRCME Certified

DOT Physicals & Medical Cards

FMCSA-compliant examinations conducted by certified medical examiners. Instant driver medical certificate renewal across Potomac.

AABB Accredited

Court Legal DNA & Paternity

100% court-admissible legal paternity, maternity, sibling, and grandparentage testing with strict chain of custody for family court.

FCRA Compliant

Background Checks & MVR

Comprehensive pre-employment screening, nationwide criminal history searches, and Motor Vehicle Records (MVR) for driver compliance.

Long Detection Window

90-Day Hair Follicle Drug Test

Tamper-resistant 90-day historical substance screening. Preferred by family courts, custody attorneys, and zero-tolerance employers.

Instant & Lab Confirmed

Breath Alcohol & 80-Hr EtG

Evidential breath alcohol testing (BAT) and 80-hour EtG urine/hair metabolite analysis for probation monitoring and workplace safety.

We Come to You

Mobile On-Site Group Testing

Certified mobile collection technicians dispatched directly to your Potomac facility or job site for groups of 25+ employees.

Local Testing Resource Network

More Drug & Alcohol Testing Options in Potomac, MD

Need immediate walk-in service in Potomac? View our Walk-In Drug Testing Near Me in Potomac, MD facility guide or order an instant electronic donor pass online.

Potomac Drug Testing

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

Potomac DOT Drug Testing

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

Potomac DNA Testing

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

Potomac Industry Training

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

Potomac Hair Drug Testing

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

Potomac Alcohol Testing

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

Potomac Drug Testing Services

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

Potomac 5 Panel Drug Test

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

Potomac 10 Panel Drug Test

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

Potomac On Site Drug Testing

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

Potomac DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Potomac, 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.


Frequently Asked Questions

In Maryland, workplace drug testing is governed by statutory guidelines under Md. Code Ann., Health-Gen. § 17-214. Private employers generally operate under a Maryland Health-General § 17-214 guidelines, permitting pre-employment, random, post-accident, and reasonable suspicion testing.
Yes. Employers in Maryland who implement a certified Drug-Free Workplace Program in compliance with Md. Code Ann., Health-Gen. § 17-214 can qualify for insurance premium discounts and enhanced legal protections during workers' compensation claims.
Under Maryland state law compliance standards, state statutes permits employers to maintain zero-tolerance drug-free workplaces. Safety-sensitive positions, DOT-regulated roles, and federal contract compliance remain strictly zero-tolerance across all jurisdictions.
Accredited Drug Testing provides access to 31 certified collection sites in the Potomac area, offering urine, hair follicle, breath alcohol, and DOT testing.
While walk-ins are welcome with an electronic donor pass at collection sites across Potomac, registering your test online or calling (800) 221-4291 prior to visiting guarantees rapid priority specimen collection with an instant barcode pass.
Negative drug and alcohol test results are typically released within 24 to 48 hours of specimen processing. Any non-negative screenings undergo confirmatory GC/MS or LC/MS testing and licensed Medical Review Officer (MRO) verification within 3 to 5 business days.

Customer Reviews

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

Reception is kind and helpful

Reception is kind and helpful , everything quick and simple , best urgent care

Yusuf Narmuradov - 11/19/2024

Fast and efficient service

Fast and efficient service for employers wanting to do pre employment drug screening that meets DOT requirements!!

Mary Thomas - 4/5/2025


(800) 221-4291