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

Drug Testing Locations in Clarksburg, MD

With 34 testing centers in the Clarksburg 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

34 Drug-Testing Centers in Clarksburg

Same-Day Electronic Donor Pass Accepted at All Locations Below

Minutes Away, Test Today

20528 Boland Farm Rd Ste 205,

3.49 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-11:00 AM & 1:00 PM-3:00 PM✓ Walk-in with Electronic Donor Pass
20528 Boland Farm Rd Ste 205,
Germantown, MD 20876

19785 Crystal Rock Dr, Ste 308

4.13 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
19785 Crystal Rock Dr, Ste 308
Germantown, MD 20874

19785 Crystal Rock Dr

4.17 mi
🕑 Facility: Mon–Fri: 07:00 AM - 04:00 PM⚡ Drug Screens: Mon–Fri: 08:00 AM - 03:00 PM
19785 Crystal Rock Dr
Germantown, MD 20874

12321 Middlebrook Rd

4.46 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-8:00 PM • Sat:,Sun: 8:00 AM-4:00 PM✓ Walk-in with Electronic Donor Pass
12321 Middlebrook Rd
Germantown, MD 20874

12321 Middlebrook Road Suite 101

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

803 Russell Ave

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

8945 N Westland Dr

8.23 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

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

15225 Shady Grove Road, Suite 207

10.32 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

14800 Physicians Ln Ste 131

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

15005 Shady Grove Rd Ste 450

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

9707 Medical Center Dr Ste 120,

10.61 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

205 Center Street, Suite 204

11.65 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
205 Center Street, Suite 204
Mount Airy, MD 21771

301 Watersville Rd

12.94 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
301 Watersville Rd
Mount Airy, MD 21771

18111 Prince Philip Dr, Ste T12

13.32 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
18111 Prince Philip Dr, Ste T12
Olney, MD 20832

490 Prospect Blvd Ste L

14.08 mi
🕑 Testing Hours: Mon–Fri: 7:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
490 Prospect Blvd Ste L
Frederick, MD 21701

2 Lyndhurst Ct

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

400 W 7th St

14.66 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
400 W 7th St
Frederick, MD 21701

915 Toll House Ave Ste 203,

14.85 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
915 Toll House Ave Ste 203,
Frederick, MD 21701

1560 Opossumtown Pike Ste A-22,

15.39 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1560 Opossumtown Pike Ste A-22,
Frederick, MD 21702

2 Pidgeon Hill Dr Suite 120,

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

21036 Tripleseven Rd

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

141 Thomas Johnson Dr Ste 100

15.75 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
141 Thomas Johnson Dr Ste 100
Frederick, MD 21702

Po Box 59815

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

21525 Ridgetop Cir Ste 260

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

46440 Benedict Dr Ste 108

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

952 Edwards Ferry Rd Ne

16.39 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
952 Edwards Ferry Rd Ne
Leesburg, VA 20176

42010 Village Center Plz

16.62 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

51 Catoctin Cir Ne

17.12 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
51 Catoctin Cir Ne
Leesburg, VA 20176

222 Catoctin Cir,se, Ste 100

17.30 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
222 Catoctin Cir,se, Ste 100
Leesburg, VA 20175

211 S King St Suite C,

17.63 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
211 S King St Suite C,
Leesburg, VA 20175

21785 Filigree Ct

18.27 mi
🕑 Testing Hours: Mon–Fri: 7:30 AM-3:30 PM • Sat: 7:00 AM-10:30 AM✓ Walk-in with Electronic Donor Pass
21785 Filigree Ct
Ashburn, VA 20147

21785 Filigree Court, Suite 20,

18.32 mi
🕑 Testing Hours: Mon–Fri: 7:30 AM-3:30 PM • Sat: 7:00 AM-10:30 AM✓ Walk-in with Electronic Donor Pass
21785 Filigree Court, Suite 20,
Ashburn, VA 20147

11002 Veirs Mill Rd Ste 700

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

Employment, DOT, Court Ordered, Probation, Family

At our 34 testing centers in and around Clarksburg, MD, Accredited Drug Testing provides an extensive array of drug and alcohol testing services. Our offerings include both DOT and non-DOT urine analyses, breathalyzer alcohol assessments, hair follicle substance checks, and EtG alcohol testing. Whether for personal, employment, or legal purposes, we ensure swift test results and offer SAMSA-certified lab analysis. Most sites are conveniently located near you, providing same-day services. Moreover, we offer Clinical Tests, Occupational Health Evaluations, and Background Verification.

To set up a test, simply dial (800) 221-4291 or register online. Choose the required test and select the most convenient center—testing is available for you, staff, or others. Our process is seamless, enabling you to conveniently book a test either by calling our scheduling team or online anytime, day or night. The intuitive experience makes organizing a drug test near Clarksburg simple and straightforward.

* 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 Clarksburg, MD

1

Order Online or Call

Select your test & search nearby Clarksburg 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.

Clarksburg, MD Drug Testing

Drug Testing Services Available at Our Clarksburg, MD Labs:

At our Clarksburg 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 Clarksburg

SAMHSA Certified • MRO Verified

Accredited Drug Testing provides employer and individual screening in Clarksburg, 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 Clarksburg 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 Clarksburg, 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 Clarksburg 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 Clarksburg, MD

Minutes Away, Same-Day Donor Pass

Accredited Drug Testing operates collection centers strategically positioned throughout Clarksburg 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 Clarksburg Neighborhoods Covered:

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

Major Employment & Commercial Hubs Served:

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

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

Surrounding Areas Served Near Clarksburg

Comus • Boyds • Germantown • Woodfield • Green Valley • Damascus • Goshen • Barnesville

Clarksburg, 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 Clarksburg.

Test Type & Local Panel Detection Window Common Use Cases in Clarksburg Turnaround Time
5-Panel Urine Screen in Clarksburg →
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 Clarksburg →
Adds Benzodiazepines, Barbiturates, Methadone, Propoxyphene
1 to 7 Days Healthcare Staffing, Corporate Policies & Court Orders 24 to 48 Hours
Hair Follicle Drug Test in Clarksburg →
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 Clarksburg →
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 Clarksburg →
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 Clarksburg →
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 Clarksburg, 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 Clarksburg.

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 Clarksburg facility or job site for groups of 25+ employees.

Local Testing Resource Network

More Drug & Alcohol Testing Options in Clarksburg, MD

Need immediate walk-in service in Clarksburg? View our Clarksburg, MD Drug Testing Facility Guide or order an instant electronic donor pass online.

Clarksburg Drug Testing

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

Clarksburg DOT Drug Testing

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

Clarksburg DNA Testing

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

Clarksburg Industry Training

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

Clarksburg Hair Drug Testing

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

Clarksburg Alcohol Testing

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

Clarksburg Drug Testing Services

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

Clarksburg 5 Panel Drug Test

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

Clarksburg 10 Panel Drug Test

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

Clarksburg On Site Drug Testing

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

Clarksburg DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Clarksburg, 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 34 certified collection sites in the Clarksburg area, offering urine, hair follicle, breath alcohol, and DOT testing.
While walk-ins are welcome with an electronic donor pass at collection sites across Clarksburg, 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

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

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

Explained everything so no questions

Torin was great. Explained everything so no questions

Tony Lombardo - 4/18/2025


(800) 221-4291