DOT CONSORTIUM ENROLLMENT - Sonora, CA

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

33 DOT Drug-Testing Centers in Sonora

Minutes Away, Test Today

1000 Greenley Rd0.78 miles

1000 Greenley Rd
Sonora, CA 95370

19747 Greenley Rd0.80 miles

19747 Greenley Rd
Sonora, CA 95370

940 Sylva Lane, Suite # F20.85 miles

940 Sylva Lane, Suite # F2
Sonora, CA 95370

60 Copper Cove Dr12.57 miles

60 Copper Cove Dr
Copperopolis, CA 95228

2182 Highway 417.68 miles

2182 Highway 4
Arnold, CA 95223

768 Mountain Ranch Rd21.20 miles

768 Mountain Ranch Rd
San Andreas, CA 95249

1919 Vista Del Lago Dr27.90 miles

1919 Vista Del Lago Dr
Valley Springs, CA 95252

1390 W H St Ste C30.44 miles

1390 W H St Ste C
Oakdale, CA 95361

223 Clinton Rd, Ste 20332.28 miles

223 Clinton Rd, Ste 203
Jackson, CA 95642

500 South Ave Ste 132.60 miles

500 South Ave Ste 1
Jackson, CA 95642

100 Mission Blvd32.69 miles

100 Mission Blvd
Jackson, CA 95642

20104 Hwy 8833.07 miles

20104 Hwy 88
Pine Grove, CA 95665

431 Sutter Hill Rd35.60 miles

431 Sutter Hill Rd
Sutter Creek, CA 95685

1700 Coffee Rd39.04 miles

1700 Coffee Rd
Modesto, CA 95355

600 Coffee Rd39.64 miles

600 Coffee Rd
Modesto, CA 95355

2112 Mchenry Ave39.68 miles

2112 Mchenry Ave
Modesto, CA 95350

1340 Mitchell Rd39.79 miles

1340 Mitchell Rd
Modesto, CA 95351

1524 Mchenry Ave Ste 16039.92 miles

1524 Mchenry Ave Ste 160
Modesto, CA 95350

1524 Mchenry Ave. Ste 120,39.92 miles

1524 Mchenry Ave. Ste 120,
Modesto, CA 95350

1524 Mchenry Ave Ste 50040.00 miles

1524 Mchenry Ave Ste 500
Modesto, CA 95350

5189 Hospital Rd40.00 miles

5189 Hospital Rd
Mariposa, CA 95338

1541 Florida Ave Ste 10240.08 miles

1541 Florida Ave Ste 102
Modesto, CA 95350

1441 Florida Ave40.09 miles

1441 Florida Ave
Modesto, CA 95350

911 E Tuolumne Rd40.90 miles

911 E Tuolumne Rd
Turlock, CA 95382

400 12th St Suite 2341.02 miles

400 12th St Suite 23
Modesto, CA 95354

400 12th St Ste 2341.04 miles

400 12th St Ste 23
Modesto, CA 95354

1801 Colorado Ave Ste 13041.08 miles

1801 Colorado Ave Ste 130
Turlock, CA 95382

4601 Dale Rd Fl 441.19 miles

4601 Dale Rd Fl 4
Modesto, CA 95356

3125 Conant Ave41.46 miles

3125 Conant Ave
Modesto, CA 95350

1064 Woodland Ave Ste F41.79 miles

1064 Woodland Ave Ste F
Modesto, CA 95351

1048 Geer Rd41.89 miles

1048 Geer Rd
Turlock, CA 95380

2000 Paulson Rd42.57 miles

2000 Paulson Rd
Turlock, CA 95380

3605 Hospital Rd Ste H44.11 miles

3605 Hospital Rd Ste H
Atwater, CA 95301

Agency Coverage & Current Minimum Random Rates

Percentages are set by each DOT agency and may change.

FMCSA: Federal Motor Carrier Safety Administration

Organizations compliant with 49 CFR 382.305 must uphold a proper random testing program. Owner-operators are obligated to participate in a consortium pool comprised of two or more covered employees. This requirement is strictly enforced to ensure road safety in states like Sonora, CA.

  • 50%- Controlled Substances (DOT 5-panel urine)
  • 10%- DOT Breath Alcohol Testing (BAT)
FMCSA Enroll Today

USCG- United States Coast Guard (now under Homeland Security)

Marine employers, especially in Sonora, CA, adhering to 46 CFR Part 16.230, are required to administer random drug tests to crewmembers holding safety-sensitive positions.

  • 50%- Controlled Substances (DOT 5-panel urine)
  • Alcohol testing is not applicable for USCG random minimums
USCG Enroll Today

FAA: Federal Aviation Administration

Entities under the jurisdiction of 14 CFR Part 120 must account for all functions that could affect safety. In Sonora, CA, these regulations play a significant role in maintaining the integrity and safety of aviation operations.

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

FRA- Federal Railroad Administration

In Sonora, CA, as across the United States, railroads are obligated to develop and execute a random testing plan that has received FRA approval, adhering to the regulations set forth in 49 CFR 219.601-219.609. Compliance with these provisions is crucial for the safety and integrity of railway operations.

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 under the jurisdiction of 49 CFR Part 655 are tasked with implementing a scientifically grounded selection process. This practice ensures reliable testing outcomes and safety assurances within the domain of public transportation. Sonora, CA is among the states enforcing these federal mandates, ensuring public welfare on transit systems is a primary concern.

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

PHMSA- Pipeline & Hazardous Materials Safety Administration

Operators accountable for Parts 192, 193, or 195 are directed to test their covered employees in accordance with the standards set under 49 CFR Part 199. This establishes a benchmark for safe operational practices that is uniformly respected across various states, including Sonora, CA, to secure the integrity of pipeline operations and the wellbeing of communities.

  • 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 requires it?

A consortium c/TPA is an agent responsible for managing aspects of an employer's drug and alcohol testing programs, which encompasses the formation of random testing pools and ensures compliance as outlined in 49 CFR part 40.

Do random testing percentages remain static or vary?

DOT random testing rates might fluctuate yearly due to changing positivity rates. Within our consortium, regardless of the random testing rate, all random testing fees for DOT remain included.

What occurs when selected for a random test?

ADT informs the company's DER or owner-operator via email or phone, providing details of the closest testing site and necessary instructions. The employee selected must proceed to the testing center promptly upon notification.

What substances are evaluated in a DOT drug test?

A DOT drug test involves screening for a DOT 5-panel urine and conducting a DOT breath alcohol test, ensuring every test adheres to Federal CCF and Federal Alcohol Testing Form standards.

Assistance during a DOT audit or inspection available?

Yes, ADT assists by organizing necessary documentation including pre-employment tests, confirmations of random pool enrollments, certificates for supervisor training, development of DOT policies, and MIS reports.

Frequency of employee pool updates?

Employee roster updates are confirmed quarterly, with employers having the flexibility to add or remove covered employees anytime before selection dates.

Find a DOT Drug Test Center Near You

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Sonora Hair Drug Testing

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Sonora Alcohol Testing

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

Sonora Drug Testing Services

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

Sonora 5 Panel Drug Test

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

Sonora 10 Panel Drug Test

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

Sonora On Site Drug Testing

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

Sonora DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Sonora, CA 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

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

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

Pretty Straightforward

It was a pretty straightforward process getting an appointment and making payment. Getting to the testing site was quick. I was in and out in no time.

Sadiat Ogunyemi - 12/19/2024

ADT is truly the best

Where do I start?!! ADT is truly the best!! I had the pleasure of speaking with Tori today! She was excellent, professional and truly went above and beyond in her kind, compassionate care and commitment to providing me with the best service possible. I was in such a time crunch, but I was able to call, order the test, pay for it over the phone and get the test I needed within the hour. Not only did this put my mind at ease, they saved my job!! I am forever grateful for this team of hard workers, that care, with such great work ethics! Thank you from the very bottom of my heart!!! If you need a drug, alcohol, etc… screening, this team will be your lifesavers!!

Sarah Patterson - 4/8/2025

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

Super helpful

Customer service was surprisingly super helpful and so nice. She was able to get me in at a local location right away the same day. She helped me figure out exactly what I needed. Very impressed.

Brook - 9/19/2024

Really Helpful

I am just really happy to see that the location near me still offers hair follicle tests!! They are really helpful when any false positives happen, waiting on my results. Hope they come fast!

Kali Collins - 1/16/2025

Fast,easy and efficient

Fast,easy and efficient. They made the whole process stress free and simple. Thanks 😊

Micheal Ankenbrandt - 2/19/2025

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

Very helpful

They were very helpful in finding a place to get tested on the route back home! They made a difficult time seem easy with no judgement!

Anne Creden - 11/19/2024


(800) 221-4291