DOT CONSORTIUM ENROLLMENT - Four Corners, MD

Random Drug & Alcohol Testing Program
FMCSA - FAA - USCG - FTA - FRA - PHMSA

All Random Test Fees Included


Our DOT Consortium Membership includes quarterly random selections, notifications by email & phone, testing site coordination, MIS reporting, and a Certificate of Compliance upon enrollment. Owner-operators DOT-regulated employers Certificate of Compliance.

  • We offer 1, 2 and 3 year memberships (multi-year discounts)
  • All random selection testing and testing fees included (no hidden costs)
  • MIS report at year-end and upon request
  • DER support, Clearinghouse assistance (FMCSA), DOT Physicals, MVR Reports & Supervisor Training

Why is a DOT Consortium Required?

Owner Operators- DOT requires all owner-operators to enroll in a consortium so they are included in a compliant random testing pool because they cannot randomly test themselves.

Small Employers-Some smaller companies may not have enough drivers or safety-sensitive employees to maintain their own statistically valid random pool. Therefore, by joining a consortium, they are combined with other companies to form a large pool that meets DOT testing requirements.

Large Employers-Larger fleets may manage their own random pool but often use a consortium/TPA to outsource the process, reduce administrative burden, and ensure strict compliance.

How Our DOT Consortium Works

Step 1: Enroll: Select a 1, 2, or 3 year membership and receive your Certificate of Compliance by email.

Quarterly Selections: We process our consortiums using a scientifically valid, computer-generated random draws each quarter.

Immediate Notifications: If selected, your DER receives email & phone notice with selection instructions.

Testing & Results: Visit the assigned testing center. ADT will manage CCFs, lab processing, and reporting.

MIS Reporting: Year-end and on-demand MIS reports included.

Included With Membership

  • All random selection test fees (drug & alcohol where applicable)
  • DER support & audit-ready documentation
  • Federal CCFs (5-part) for DOT drug tests
  • FMCSA Clearinghouse registration assistance
  • Policy templates (DOT Drug & Alcohol)
  • Supervisor reasonable-suspicion training options

29 DOT Drug-Testing Centers in Four Corners

Minutes Away, Test Today

9801 Georgia Ave Ste 2221.62 miles

9801 Georgia Ave Ste 222
Silver Spring, MD 20902

8121 Georgia Ave Ste 2082.19 miles

8121 Georgia Ave Ste 208
Silver Spring, MD 20910

11002 Veirs Mill Rd Ste 7002.33 miles

11002 Veirs Mill Rd Ste 700
Wheaton, MD 20902

1401 Blair Mill Rd Apt 12222.34 miles

1401 Blair Mill Rd Apt 1222
Silver Spring, MD 20910

8218 Wisconsin Ave Ste 2084.88 miles

8218 Wisconsin Ave Ste 208
Bethesda, MD 20814

10452 Baltimore Ave5.05 miles

10452 Baltimore Ave
Beltsville, MD 20705

920 Varnum St Ne5.46 miles

920 Varnum St Ne
Washington, DC 20017

4729 Sellman Rd5.57 miles

4729 Sellman Rd
Beltsville, MD 20705

13823 Outlet Dr5.57 miles

13823 Outlet Dr
Silver Spring, MD 20904

6201 Greenbelt Rd, Suite M35.94 miles

6201 Greenbelt Rd, Suite M3
College Park, MD 20740

3422 Georgia Ave Nw6.12 miles

3422 Georgia Ave Nw
Washington, DC 20010

7933 Belle Point Dr6.77 miles

7933 Belle Point Dr
Greenbelt, MD 20770

911 U St Nw7.17 miles

911 U St Nw
Washington, DC 20001

3676 Alpen Greenway7.46 miles

3676 Alpen Greenway
Burtonsville, MD 20866

1145 19th Street Nw Suite 5068.11 miles

1145 19th Street Nw Suite 506
Washington, DC 20036

1140 19th St Nw Ste 7008.12 miles

1140 19th St Nw Ste 700
Washington, DC 20036

1145 19th St Nw Ste 6018.13 miles

1145 19th St Nw Ste 601
Washington, DC 20036

2440 M St Nw Ste 414,8.26 miles

2440 M St Nw Ste 414,
Washington, DC 20037

2029 K St Nw Ste 3018.32 miles

2029 K St Nw Ste 301
Washington, DC 20006

815 Connecticut Ave Nw8.39 miles

815 Connecticut Ave Nw
Washington, DC 20006

4121 Minnesota Ave Ne9.15 miles

4121 Minnesota Ave Ne
Washington, DC 20019

Po Box 598159.51 miles

Po Box 59815
Rockville, MD 20859

18111 Prince Philip Dr, Ste T129.52 miles

18111 Prince Philip Dr, Ste T12
Olney, MD 20832

10117 Palamar Dr9.95 miles

10117 Palamar Dr
Lanham, MD 20706

P. O. Box 3769.97 miles

P. O. Box 376
Laurel, MD 20725

3301 Wilson Blvd10.52 miles

3301 Wilson Blvd
Arlington, VA 22201

8768 Susini Dr10.59 miles

8768 Susini Dr
Laurel, MD 20723

4451 Parliament Pl Ste G10.65 miles

4451 Parliament Pl Ste G
Lanham, MD 20706

3510 Heidi Ln10.96 miles

3510 Heidi Ln
Springdale, MD 20774

Agency Coverage & Current Minimum Random Rates

Percentages are set by each DOT agency and may change.

FMCSA: Federal Motor Carrier Safety Administration

All employers subject to the stipulations of 49 CFR 382.305 have an obligation to uphold a compliant random testing program. Owner-operators are required to engage in a consortium pool that comprises at least two employees subject to test. This includes states like Four Corners, MD, where adherence is mandatory to ensure safety and compliance on roadways.

  • 50% Rate: Testing for Controlled Substances using a DOT 5-panel urine test.
  • 10% Rate: Conducting DOT Breath Alcohol Testing (BAT).
FMCSA Enroll Today

USCG: United States Coast Guard (now under homeland security)

  • Marine employers governed by 46 CFR Part 16.230 are obligated to execute random drug tests for crewmembers involved in safety-sensitive operations. In the state of Four Corners, MD, with its extensive maritime activities, adherence to these guidelines is critical for ensuring marine safety and integrity.
  • 50% of testing covers Controlled Substances through a DOT 5-panel urine test. Unlike DOT protocols for land transport, alcohol testing is not mandated within USCG's random testing criteria.

USCG Enroll Today

For those governed by the Federal Aviation Administration (FAA) under 14 CFR Part 120, it is compulsory to incorporate all safety-sensitive roles in Four Corners, MD and across the nation.

  • 25%- Controlled Substances (DOT 5-panel urine)
  • 10%- Breath Alcohol Testing (BAT)
FAA Enroll Today

FRA- Federal Railroad Administration

Federal Railroad Administration (FRA)

In Four Corners, MD, railroads must develop and adhere to an FRA-approved random testing plan as required by Â49 CFR 219.601-219.609. This regulation ensures that safety measures are maintained through compliant testing procedures.

Employee Category Drugs Alcohol
Covered Service 25% 10%
Maintenance of Way / Roadway Workers 25% 10%
Mechanical 50% 25%
FRA Enroll Today

FTA- Federal Transit Administration

Employers regulated under 49 CFR Part 655 must apply a scientifically validated method for employee selection. In Four Corners, MD, these regulations are enforced to sustain public transportation safety, thereby facilitating a reliable and secure commuting environment for the populace.

  • 50%- Drugs
  • 10%-  Alcohol
FTA Enroll Today

PHMSA- Pipeline & Hazardous Materials Safety Administration

Operators in Four Corners, MD bound by Parts 192, 193, or 195 are required to conduct testing for covered employees in accordance with 49 CFR Part 199, ensuring compliance with safety standards and regulations that aim to protect the public and the environment.

  • 50%-Drugs
  • Alcohol- N/A (no PHMSA random alcohol minimum)
PHMSA Enroll Today

Who Must Be in a DOT Random Program?

  • Truck drivers (CDL) & motor carriers
  • Train engineers, conductors, dispatchers
  • Merchant mariners & marine employers
  • Airline pilots, flight attendants, mechanics, ATC
  • Pipeline operations, maintenance & emergency response
  • Transit operations, maintenance & certain CDL roles

Owner-Operators , Small, Medium & Large Employers

Joining our DOT consortium is the fastest way to achieve immediate compliance. We provide the Certificate of Compliance, random selections, MIS reports and testing coordination.

ENROLL TODAY

Complete Compliance Package for Independent Operators & Small Companies

  • 1 DOT Drug Test
  • First-year Consortium membership (all randoms included)
  • 1 Supervisor training (reasonable suspicion)
  • 1 DOT Drug & Alcohol Policy
  • 1 Certificate of Compliance

Need more tests? Additional DOT drug tests can be added at a discount.

Enroll Today! (800) 221-4291

Enroll in the DOT Consortium

Enroll Today

Immediate compliance for DOT random testing. Perfect for owner-operators and employers of any size.

  • Quarterly random selections & notifications
  • All random test fees included
  • MIS reporting & audit support
  • CCFs, policy templates, DER guidance

Are there penalties for non compliance?

Failing to comply with DOT drug and alcohol testing requirements can result in severe consequences for both employers and drivers, including:

  • Quarterly random selections & notifications
  • All random test fees included
  • MIS reporting & audit support
  • CCFs, policy templates, DER guidance

DOT Consortium: Frequently Asked Questions

What is a DOT Consortium (C/TPA) and who needs it?

A consortium C/TPA is a service provider that manages all or portions of an employer's drug and alcohol testing program, which includes random testing pools and compliance responsibilities under 49 CFR part 40.

Are random testing percentages always the same or do they change?

Rates for DOT random testing may vary yearly based on positivity rates. However, in our consortium, all fees for DOT random testing are covered, regardless of the required random testing rate.

What happens when I am selected for a random test?

ADT notifies the company DER or owner-operator through email or phone. The closest testing location and instructions are provided, requiring the selected employee to promptly appear at the testing center once notified.

What drugs are tested on a DOT drug test?

A DOT drug test includes a screen for a DOT 5-panel urine and a DOT breath alcohol test. It's crucial that all tests are administered using a Federal CCF and a Federal Alcohol Testing Form.

Can you help during a DOT audit or inspection?

Yes, ADT assists by organizing vital documentation, such as pre-employment tests, random pool enrollment proof, supervisor training certificates, DOT policy development, and MIS reports.

How often can I update my employee pool?

We confirm employee roster updates every quarter. Employers are permitted to add or remove covered employees anytime before selection dates.

Find a DOT Drug Test Center Near You

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Four Corners Hair Drug Testing

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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 Consortium is a program that manages random drug and alcohol testing for DOT-regulated employers and owner-operators. It ensures compliance with federal testing requirements by maintaining a random selection pool, managing notifications, and handling test scheduling and reporting.
All employers and owner-operators who fall under DOT agency regulations — including FMCSA, FAA, FTA, FRA, PHMSA, and USCG — must participate in a random drug and alcohol testing program. Owner-operators must join a third-party consortium to meet compliance standards.
Enrollment includes participation in a DOT-approved random testing pool, random drug and alcohol tests, test scheduling, employee notifications, Certificate of Compliance, and annual MIS reporting. Accredited Drug Testing also provides program administration, policy assistance, and ongoing compliance support.
Enrollment can be completed online at accrediteddrugtesting.com by selecting the DOT Consortium Enrollment option, or by calling (800) 221-4291. Once enrolled, participants receive immediate documentation and compliance materials.
Each enrolled company or owner-operator receives a Certificate of Compliance, MIS reports, and other documentation verifying participation in a DOT-compliant random testing pool. These records help demonstrate compliance during DOT audits or inspections.
Yes. Accredited Drug Testing’s consortium program automatically manages all random selections and notifications. When a driver or employee is selected, Accredited coordinates testing at a nearby collection site and provides results reporting and recordkeeping.

Customer Reviews

Thank You!!

I needed a quick drug test for visitation with my children. I called at 6am they answered and set me up with a place a couple miles from my house to go get the test done, that was on Wednesday, I had the results on Friday afternoon and was able to see my kids on Saturday. Thank you for the help!

Mark Broadhead - 2/12/2025

A very nice company

A very nice company of expertise. The staff will go above to help you out of your situation in a timely matter 👏

Tam Jack - 2/19/2025

Fantastic Experience

Fantastic experience from the beginning. Jocelyn was very helpful to me as someone who doesn’t have much experience in needing a test. They were very helpful and walked me through the entire process start to finish. Thank you ADT!

Riley Wilson - 2/18/2025

Quick, Polite, Informative

Everyone has been quick to respond, polite, informative. It's been easy to order tests. I would recommend them to anyone to use.

April Rogers - 2/15/2025

Accredited has been wonderful to work with!

Accredited has been wonderful to work with! My court ordered tests are on a very strange schedule but every time I call, they are quick to schedule me and are always able to find a location that works for where I’m at and when! Thank you for making this rather undesirable situation less stressful and efficient.

Madison Sanderford - 8/19/2024

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

Hassle Free Experience

It was easy to make the arrangements to get to someone in regards to renewing my DOT medical certificate. They took care of everything over the phone which made my experience hassle free. I will definitely be using them again and you should too.

Jim Raymond - 10/18/2024

Quick, knowledgeable and courteous

Quick, knowledgeable and courteous Janelle worked diligently to support me. I am recommending their services to anyone looking.

Greensboro Joseph - 11/19/2024

Extremely pleasant

Initially Torrie helped me but I needed to call back. When I called back Kayla stepped in and finished my order. Both were extremely pleasant over the phone and provided wonderful customer service. Kudos to them!

Brynne Beverly - 4/19/2024

Had very fast and good service

Had very fast and good service, was able to get an appointment same day with the nearest facility. My questions were answered thoroughly but quick. Definitely recommend

Jacob Matzke - 11/19/2024


(800) 221-4291