DOT Drug Testing - Four Corners, MD

FMCSA-USCG-FTA-FRA-FAA-PHMSA

With 29 testing centers in the Four Corners 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.

29 DOT Drug-Testing Centers in Four Corners

Minutes Away, Test Today

9801 Georgia Ave Ste 222

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

8121 Georgia Ave Ste 208

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

11002 Veirs Mill Rd Ste 700

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

1401 Blair Mill Rd Apt 1222

2.34 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

8218 Wisconsin Ave Ste 208

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

10452 Baltimore Ave

5.05 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
10452 Baltimore Ave
Beltsville, MD 20705

920 Varnum St Ne

5.46 mi
🕑 Testing Hours: M-Th 9:30 AM-7:00 PM • F 9:30 AM-4:00 PM • Sat: 10:00 AM-2:00 PM✓ Walk-in with Electronic Donor Pass
920 Varnum St Ne
Washington, DC 20017

4729 Sellman Rd

5.57 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4729 Sellman Rd
Beltsville, MD 20705

13823 Outlet Dr

5.57 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
13823 Outlet Dr
Silver Spring, MD 20904

6201 Greenbelt Rd, Suite M3

5.94 mi
🕑 Facility: Mon–Fri: 07:00 AM - 04:00 PM⚡ Drug Screens: Mon–Fri: 09:00 AM - 02:00 PM
6201 Greenbelt Rd, Suite M3
College Park, MD 20740

3422 Georgia Ave Nw

6.12 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-1:00 PM✓ Walk-in with Electronic Donor Pass
3422 Georgia Ave Nw
Washington, DC 20010

7933 Belle Point Dr

6.77 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7933 Belle Point Dr
Greenbelt, MD 20770

911 U St Nw

7.17 mi
🕑 Testing Hours: Mon–Fri: 9:00 AM-3:30 PM✓ Walk-in with Electronic Donor Pass
911 U St Nw
Washington, DC 20001

3676 Alpen Greenway

7.46 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3676 Alpen Greenway
Burtonsville, MD 20866

1145 19th Street Nw Suite 506

8.11 mi
🕑 Testing Hours: Mon–Sat: 8:00 AM-5:00 PM • Sun: 10:00 AM-3:00 PM✓ Walk-in with Electronic Donor Pass
1145 19th Street Nw Suite 506
Washington, DC 20036

1140 19th St Nw Ste 700

8.12 mi
🕑 Testing Hours: Mon–Sat: 8:00 AM-8:00 PM • Sun: 10:00 AM-6:00 PM✓ Walk-in with Electronic Donor Pass
1140 19th St Nw Ste 700
Washington, DC 20036

1145 19th St Nw Ste 601

8.13 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1145 19th St Nw Ste 601
Washington, DC 20036

2440 M St Nw Ste 414,

8.26 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2440 M St Nw Ste 414,
Washington, DC 20037

2029 K St Nw Ste 301

8.32 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2029 K St Nw Ste 301
Washington, DC 20006

815 Connecticut Ave Nw

8.39 mi
🕑 Testing Hours: Mon–Fri: 11:30 AM-7:00 PM • Sat: 10:00 AM-3:00 PM • Sun: 1:00 PM-5:00 PM✓ Walk-in with Electronic Donor Pass
815 Connecticut Ave Nw
Washington, DC 20006

4121 Minnesota Ave Ne

9.15 mi
🕑 Testing Hours: Mon–Fri: 9:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
4121 Minnesota Ave Ne
Washington, DC 20019

Po Box 59815

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

18111 Prince Philip Dr, Ste T12

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

10117 Palamar Dr

9.95 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
10117 Palamar Dr
Lanham, MD 20706

P. O. Box 376

9.97 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
P. O. Box 376
Laurel, MD 20725

3301 Wilson Blvd

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

8768 Susini Dr

10.59 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
8768 Susini Dr
Laurel, MD 20723

4451 Parliament Pl Ste G

10.65 mi
🕑 Testing Hours: Mon–Fri: 7:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
4451 Parliament Pl Ste G
Lanham, MD 20706

3510 Heidi Ln

10.96 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3510 Heidi Ln
Springdale, MD 20774

DOT Drug Testing, DOT Consortium, DOT Physicals, FMCSA Clearinghouse, Serving All DOT modes

We have 29 DOT drug testing locations to serve you in and around Four Corners, MD.

In Four Corners, MD, and nearby, our DOT Drug Testing centers provide a comprehensive array of DOT services such as Drug and Alcohol Testing, Physicals, and Random Pool Enrollment. Services are crafted to meet the requirements of 49 CFR Part 40, ensuring compliance for employers and operators across all DOT modes including FMCSA, FTA, FAA, USCG, FRA, and PHMSA. With locations close to both home and office, we offer same-day service for your convenience.

Choose your DOT service or test and find a nearby facility—ideal for personal, employee, or third-party testing. Our intuitive platform simplifies scheduling DOT drug tests in Four Corners. Here, it's seamless and efficient, ensuring you get the service you need swiftly.

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.

Four Corners, Maryland DOT Services

DOT Drug Testing & Services Available in Four Corners, MD:

Our DOT services in Four Corners, MD provide comprehensive testing solutions, making it straightforward to stay compliant with federal regulations and ensure safety in sensitive roles.

DOT Services in Four Corners, MD

DOT regulations require safety-sensitive employees in Four Corners, MD to undergo regular drug and alcohol screening. These measures are vital to maintaining a safe work environment for all.

In Four Corners, Maryland, rigorous testing under DOT rules helps lower the risk of accidents associated with substance misuse, upholding employee safety standards.

Accredited Drug Testing helps ensure compliance with DOT regulations, offering a comprehensive testing suite essential for organizations in Four Corners, MD.

With a focus on safety, our services in Four Corners, Maryland are designed to facilitate compliance with DOT regulations, supporting safer workplace operations.

FMCSA Information

In Four Corners, MD, FMCSA regulations necessitate comprehensive drug and alcohol testing for commercial drivers to enhance road safety.

Adherence to FMCSA rules in Four Corners, Maryland is crucial for maintaining the integrity and safety of commercial transportation operations.

USCG Information

The USCG mandates drug and alcohol testing in Four Corners, MD to safeguard maritime safety and operational readiness.

Maritime workers in Four Corners, Maryland comply with USCG rules to uphold the security and efficiency of nautical operations.

FAA Information

FAA regulations enforce stringent drug and alcohol testing in Four Corners, MD, ensuring the safety of aviation operations through compliance.

In Four Corners, Maryland, the FAA's rigorous testing guidelines are vital in safeguarding the operational integrity of aviation services.

FRA Information

FRA drug and alcohol testing rules implemented in Four Corners, MD aim to maintain the safety and reliability of rail operations.

Four Corners, Maryland complies with FRA protocols to ensure the safety and efficiency of its railway systems and personnel.

FTA Information

FTA regulations in Four Corners, MD require regular testing to ensure public transit operators remain fit for duty and maintain passenger safety.

In Four Corners, Maryland, FTA testing standards are a key element in keeping mass transit systems safe and efficient.

PHMSA Information

The PHMSA mandates strict testing protocols in Four Corners, MD for employees managing hazardous materials, prioritizing public and workplace safety.

Four Corners, Maryland workers handling sensitive materials are subject to PHMSA testing to prevent substance-induced hazards.

Scheduling in Four Corners, MD

For any DOT drug or alcohol test in Four Corners, MD, call us at (800) 221-4291 or schedule online with our express system. Enter your details to register before visiting the testing center.

Input your zip code for the nearest testing facility in Four Corners, MD. A donor pass with the local center's address and instructions will be emailed to you. Remember to have it ready for your visit. Completing the donor info section and prepaying is necessary.

Our labs are SAMHSA-certified, and results are validated by licensed MROs, ensuring accuracy and reliability.

Beyond Four Corners, MD, Accredited Drug Testing offers expanded access to testing services across the greater metro area and neighboring cities.

Whether you're traveling or at home, with nationwide centers, Accredited Drug Testing schedules your test at any location, anytime!

Maryland Dept. of Transportation Updates

DUI Statistics in Montgomery County, MD

Driving Under the Influence (DUI) remains a critical concern in Montgomery County, Maryland, which encompasses the community of Four Corners, MD. The state of Maryland has implemented stringent DUI enforcement measures, but DUI-related incidents still impact road safety in the county. The Maryland Department of Transportation (MDOT) and local law enforcement agencies work tirelessly to reduce these incidents through checkpoints, education campaigns, and collaboration with community organizations. Annual reports show that DUI arrests in Montgomery County account for a significant portion of the state's total, underscoring the necessity for ongoing public safety efforts. These initiatives aim to mitigate the risks, safeguarding the residents of Maryland and promoting responsible driving practices statewide.

Drug-Involved Accidents in Montgomery County, MD

In Montgomery County, Maryland, including the Four Corners area, drug-involved accidents pose a significant challenge to transportation safety. The Maryland Department of Transportation (MDOT) has prioritized addressing this issue by implementing comprehensive strategies aimed at prevention and reduction. Efforts include increased law enforcement training to recognize drug impairment, public awareness campaigns, and support for drug treatment programs. Data from recent years highlights an upward trend in accidents involving narcotics, stimulants, and prescription drugs, necessitating coordinated efforts between health services, law enforcement, and community leaders. By focusing on education, enforcement, and rehabilitation, Maryland aims to curb the prevalence of such accidents and improve traffic safety for all road users.

Marijuana-Related Accidents in Montgomery County, MD

With the legalization of marijuana in Maryland, including Montgomery County—home to Four Corners, MD—there has been increased vigilance regarding marijuana-related accidents. The Maryland Department of Transportation (MDOT) and local law enforcement agencies closely monitor the impact of marijuana legalization on road safety. Educational initiatives aim to inform the public about the dangers of driving under the influence of marijuana, highlighting the impairment effects on reaction times and decision-making skills. Despite these efforts, accident reports within the county indicate a noticeable presence of marijuana in toxicology screenings, prompting further action to ensure roadway safety. Maryland continues to refine its strategies, balancing legalization with public safety, to limit marijuana-impaired driving incidents and protect its citizens.

Four Corners Drug Testing

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

Four Corners DOT Drug Testing

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

Four Corners DNA Testing

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

Four Corners Industry Training

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

Four Corners Hair Drug Testing

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

Four Corners Alcohol Testing

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

Four Corners Drug Testing Services

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

Four Corners 5 Panel Drug Test

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

Four Corners 10 Panel Drug Test

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

Four Corners On Site Drug Testing

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

Four Corners DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Four Corners, 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

A DOT drug test is a federally regulated drug test required for safety-sensitive transportation employees, such as CDL drivers. It is collected and processed under specific DOT procedures (49 CFR Part 40), including strict chain of custody, certified lab analysis, and documented results appropriate for DOT compliance."
DOT testing applies to employees in safety-sensitive roles, including commercial drivers and other regulated transportation workers. Employers must ensure pre-employment testing, random testing, post-accident testing, reasonable suspicion testing, return-to-duty, and follow-up testing are performed as required."
Yes. Accredited Drug Testing maintains access to DOT-compliant collection sites nationwide. Drivers and employers can schedule testing at a nearby location for required DOT drug and alcohol tests, including urgent post-accident or reasonable suspicion testing."
DOT-required testing includes pre-employment, random, post-accident, reasonable suspicion/reasonable cause, return-to-duty, and follow-up testing. For alcohol, evidential breath testing devices are used to document alcohol concentration following DOT protocol."
Yes. Solo CDL drivers and owner-operators are still subject to DOT testing requirements. They must participate in a compliant random testing program and complete required testing events using DOT-approved processes. Accredited Drug Testing assists in meeting these obligations."
If a DOT drug test screen is not negative, the specimen is sent for confirmatory testing using more specific laboratory methods. Final results are documented and reported according to DOT rules. An employee who has a violation must complete the DOT return-to-duty and follow-up process before resuming safety-sensitive work."
Yes. DOT drug and alcohol test results are released only to authorized employer representatives and are maintained in compliance files for DOT purposes. Results are handled in a controlled and confidential manner."
Yes. Accredited Drug Testing supports urgent post-accident and reasonable suspicion testing because DOT rules require timely documentation of possible impairment following an incident or observed behavior in a safety-sensitive environment."

Customer Reviews

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 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

quick to assist

They are very quick to assist with your orders and they helped when I needed to find a new testing facility.

Gary Matkin - 2/19/2025


(800) 221-4291