DOT CONSORTIUM ENROLLMENT - Williams, 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

26 DOT Drug-Testing Centers in Williams

Minutes Away, Test Today

2967 Davison Ct8.60 miles

2967 Davison Ct
Colusa, CA 95932

151 E Webster St8.91 miles

151 E Webster St
Colusa, CA 95932

460 W Sycamore St25.72 miles

460 W Sycamore St
Willows, CA 95988

1429 Colusa Hwy27.17 miles

1429 Colusa Hwy
Yuba City, CA 95993

1233 Plumas St Ste B28.55 miles

1233 Plumas St Ste B
Yuba City, CA 95991

595 Winship Rd28.56 miles

595 Winship Rd
Yuba City, CA 95991

444 Plumas Blvd28.74 miles

444 Plumas Blvd
Yuba City, CA 95991

16320 Tish A Tang Rd29.17 miles

16320 Tish A Tang Rd
Lower Lake, CA 95457

520 Cottonwood Street, Suite F37.99 miles

520 Cottonwood Street, Suite F
Woodland, CA 95695

1207 Fairchild Ct38.58 miles

1207 Fairchild Ct
Woodland, CA 95695

632 W Gibson Rd38.69 miles

632 W Gibson Rd
Woodland, CA 95695

475 Pioneer Ave Ste 10039.30 miles

475 Pioneer Ave Ste 100
Woodland, CA 95776

1940 Feather River Blvd Ste O39.40 miles

1940 Feather River Blvd Ste O
Oroville, CA 95965

888 Lakeside Vlg Commons Bldg A Main Floor40.45 miles

888 Lakeside Vlg Commons Bldg A Main Floor
Chico, CA 95928

2451 Oro Dam Blvd E,40.53 miles

2451 Oro Dam Blvd E,
Oroville, CA 95966

756 E Walker St,41.29 miles

756 E Walker St,
Orland, CA 95963

2559 Lakeshore Blvd Ste 441.39 miles

2559 Lakeshore Blvd Ste 4
Lakeport, CA 95453

5124 Hill Rd E,41.67 miles

5124 Hill Rd E,
Lakeport, CA 95453

5176 Hill Rd E Attn Lab43.02 miles

5176 Hill Rd E Attn Lab
Lakeport, CA 95453

1450 Sherman Ave44.47 miles

1450 Sherman Ave
Chico, CA 95926

274 Cohasset Rd Ste 10044.51 miles

274 Cohasset Rd Ste 100
Chico, CA 95926

670 Rio Lindo Ave Ste 30044.67 miles

670 Rio Lindo Ave Ste 300
Chico, CA 95926

670 Rio Lindo Ave, Ste 50044.72 miles

670 Rio Lindo Ave, Ste 500
Chico, CA 95926

572 Rio Lindo, Unit 10744.81 miles

572 Rio Lindo, Unit 107
Chico, CA 95926

10 Woodland Rd45.35 miles

10 Woodland Rd
Saint Helena, CA 94574

4112 E Commerce Way48.72 miles

4112 E Commerce Way
Sacramento, CA 95834

Agency Coverage & Current Minimum Random Rates

Percentages are set by each DOT agency and may change.

FMCSA: Federal Motor Carrier Safety Administration

Under the jurisdiction of 49 CFR 382.305, employers must uphold a compliant random testing program. In Williams, CA, as in the rest of the nation, owner-operators are mandated to participate in a consortium pool that encompasses at least two covered employees.

  • 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 under 46 CFR Part 16.230 are tasked with conducting random drug testing for employees involved in safety-sensitive functions. In Williams, CA, this requirement holds significant importance to safeguard maritime operations.

  • 50% - Controlled Substances using a DOT 5-panel urine test
  • Alcohol testing is not a criterion under USCG random minimums
USCG Enroll Today

FAA: Federal Aviation Administration

Under the mandates of 14 CFR Part 120, employers must incorporate all safety-sensitive operations into their drug and alcohol testing protocols. Williams, CA, as a major hub for aviation, necessitates stringent adherence to these rules to maintain safety and compliance.

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

FRA- Federal Railroad Administration

Compliance with FRA Regulations in Rail Transport

Rail companies are required to draft and adhere to an FRA-approved random testing plan as specified in 49 CFR 219.601-219.609. Williams, CA rail operators are no exception, ensuring the highest safety standards are met.

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 49 CFR Part 655 must use a scientifically valid selection method

  • Entities falling under this regulation are mandated to employ scientifically credible methods for employee selection concerning random drug testing. This provision takes on additional importance within Williams, CA, where public transportation systems are integral to commuter safety and overall state mobility.

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

PHMSA- Pipeline & Hazardous Materials Safety Administration

In Williams, CA, operators abiding by Parts 192, 193, or 195 are mandated to screen covered employees in accordance with 49 CFR Part 199. This testing is essential to uphold safety across the state's various pipelines and hazardous materials operations.

  • 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 oversees aspects of an employer's drug and alcohol testing, involving random testing pools and ensuring adherence to 49 CFR part 40.

Are random testing percentages constant, or do they vary?

DOT random testing percentages can fluctuate annually based on positivity rates. Our consortium covers all DOT random testing fees regardless of the rate changes.

What happens when I am selected for a random test?

ADT will contact the DER or Owner Operator via email/phone with details about the nearest testing center and instructions. The chosen employee must proceed to the site promptly upon notification.

What drugs are tested on a DOT drug test?

A DOT drug test includes a DOT 5-panel urine screen and a DOT breath alcohol test. It's imperative that all tests use a Federal CCF and a Federal Alcohol Testing Form.

Can you assist during a DOT audit or inspection?

Yes, ADT can assist by organizing necessary documents such as pre-employment tests, proof of random pool enrollment, supervisor training certificates, policy development, and MIS reports.

How frequently can I update my employee pool?

Employee lists are verified quarterly. Employers can add or remove covered employees at any time before selection dates.

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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

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(800) 221-4291