DOT CONSORTIUM ENROLLMENT - Castle Hill, CA

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

All Random Test Fees Included

With over 30 testing centers in the Castle Hill 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.

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

32 DOT Drug-Testing Centers in Castle Hill

Minutes Away, Test Today

1425 S Main St

1.57 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1425 S Main St
Walnut Creek, CA 94596

1981 N Broadway Ste 190

2.52 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1981 N Broadway Ste 190
Walnut Creek, CA 94596

108 La Casa Via, Ste 105

3.00 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
108 La Casa Via, Ste 105
Walnut Creek, CA 94598

320 Lennon Ln Fl 2

4.36 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
320 Lennon Ln Fl 2
Walnut Creek, CA 94598

401 Gregory Ln, Ste 146

5.51 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
401 Gregory Ln, Ste 146
Pleasant Hill, CA 94523

609 Gregory Ln Ste 100

5.51 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
609 Gregory Ln Ste 100
Pleasant Hill, CA 94523

2090 Commerce Ave

7.30 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2090 Commerce Ave
Concord, CA 94520

2231 Galaxy Ct

7.42 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2231 Galaxy Ct
Concord, CA 94520

2280 Diamond Blvd Ste 520

7.45 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2280 Diamond Blvd Ste 520
Concord, CA 94520

2477 Pacheco St

7.80 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2477 Pacheco St
Concord, CA 94520

5167 Clayton Rd Ste H

7.81 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5167 Clayton Rd Ste H
Concord, CA 94521

2425 East Street, Suite 6

7.90 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2425 East Street, Suite 6
Concord, CA 94520

2540 East St

7.96 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2540 East St
Concord, CA 94520

2301 Camino Ramon Ste 108

8.27 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2301 Camino Ramon Ste 108
San Ramon, CA 94583

6001 Norris Canyon Rd Ste 142

8.39 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
6001 Norris Canyon Rd Ste 142
San Ramon, CA 94583

5601 Norris Canyon Rd Ste 140

8.39 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5601 Norris Canyon Rd Ste 140
San Ramon, CA 94583

1805 Arnold Dr

8.72 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1805 Arnold Dr
Martinez, CA 94553

827 Arnold Dr Ste 70

9.30 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
827 Arnold Dr Ste 70
Martinez, CA 94553

200 Muir Rd Hacienda Bldg, 1st Floor

9.51 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
200 Muir Rd Hacienda Bldg, 1st Floor
Martinez, CA 94553

3237 Alhambra Ave Ste 2

9.87 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3237 Alhambra Ave Ste 2
Martinez, CA 94553

1517 Grand Ave

10.51 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1517 Grand Ave
Piedmont, CA 94611

2450 Ashby Ave

10.83 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2450 Ashby Ave
Berkeley, CA 94705

4069 Piedmont Ave Ste 910

10.95 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4069 Piedmont Ave Ste 910
Oakland, CA 94611

3701 Broadway Fl 5

11.28 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3701 Broadway Fl 5
Oakland, CA 94611

3300 Webster St, Ste 1110

11.51 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3300 Webster St, Ste 1110
Oakland, CA 94609

350 Hawthorne Ave

11.58 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
350 Hawthorne Ave
Oakland, CA 94609

7817 Oakport St

11.58 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7817 Oakport St
Oakland, CA 94621

7901 Oakport St Ste 4950 2nd Floor

11.60 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7901 Oakport St Ste 4950 2nd Floor
Oakland, CA 94621

13939 E 14th St

11.67 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
13939 E 14th St
San Leandro, CA 94578

401 Roland Way Ste 205

11.93 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
401 Roland Way Ste 205
Oakland, CA 94621

20400 Lake Chabot Rd Ste 101,

12.09 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
20400 Lake Chabot Rd Ste 101,
Castro Valley, CA 94546

1700 Broadway Ste 310

12.25 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1700 Broadway Ste 310
Oakland, CA 94612

Agency Coverage & Current Minimum Random Rates

Percentages are set by each DOT agency and may change.

FMCSA: Federal Motor Carrier Safety Administration

For compliance under 49 CFR 382.305, employers must sustain a suitable random testing program. With specific relevance to Castle Hill, CA, owner-operators are mandated to engage within a consortium pool, comprising two or more eligible employees.

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

USCG: United States Coast Guard (currently under the jurisdiction of Homeland Security)

Marine employers, governed by 46 CFR Part 16.230, are obligated to execute random drug tests for crewmembers engaged in safety-sensitive roles. This legislation applies uniformly across all states, including Castle Hill, CA, promoting a commitment to maritime safety standards.

  • 50%- Controlled Substances (DOT 5-panel urine)
  • Alcohol- Not applicable under USCG random minimums
USCG Enroll Today

FAA: Oversight by the Federal Aviation Administration

Companies under the jurisdiction of 14 CFR Part 120 are mandated to involve all individuals in safety-sensitive roles within their drug and alcohol testing programs. Castle Hill, CA is committed to enforcing these aviation standards diligently.

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

FRA- Federal Railroad Administration

In Castle Hill, CA, railroads are required to submit and adhere to an FRA-approved random testing strategic plan as outlined in 49 CFR 219.601-219.609.

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

FTA and Castle Hill, CA

Employers in Castle Hill, CA, bound by 49 CFR Part 655, must employ a scientifically sound method for selecting employees for testing. This ensures fair and scientifically valid testing procedures are maintained.

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

PHMSA- Pipeline & Hazardous Materials Safety Administration

Operators governed by Parts 192, 193, or 195 are required to conduct tests on covered employees in line with 49 CFR Part 199. Within Castle Hill, CA, adherence to these regulations is vital for the safe transport and operation of pipelines and hazardous materials.

  • Castle Hill, CA's infrastructure safety protocols are bolstered by these rigorous standards, ensuring well-regulated 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 defines a DOT Consortium (C/TPA) and who requires one?

A Consortium or C/TPA is a service provider that manages some or all aspects of an employer's drug and alcohol testing regimen, including random test pools and 49 CFR part 40 compliance duties.

Do random testing percentages fluctuate?

While DOT may adjust random testing rates yearly owing to positive test results, within our consortium, we guarantee all DOT random test fees are pre-included regardless of rate adjustments.

What should I do if selected for a random test?

Upon selection, ADT will inform the company's DER or the owner-operator via email/phone about the nearest test facility and provide directions. The selected employee must proceed to the test site immediately upon notification.

What substances are screened in a DOT drug test?

A DOT drug test routinely includes a five-panel urine test and a breath alcohol test. It's vital that these tests are done using a Federal CCF and Federal Alcohol Testing Form.

Offer help during a DOT audit or inspection?

ADT is prepared to assist in audits by gathering necessary documents such as pre-employment tests, proof of random pool membership, supervisor training certifications, DOT policy formation, and MIS reports.

How frequently can the employee pool be updated?

We verify updates to the employee roster quarterly. However, employers have the flexibility to add or remove covered employees ahead of selection deadlines.

Find a DOT Drug Test Center Near You

Enter your zip code to find nearby test centers

Castle Hill Drug Testing

Quickly find trusted local drug testing centers in Castle Hill, CA — fast, convenient, and reliable every time!

Castle Hill DOT Drug Testing

Quickly find a local DOT drug testing center in Castle Hill, CA — fast, reliable, convenient nationwide service!

Castle Hill DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Castle Hill, CA.

Castle Hill Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Castle Hill, CA.v

Castle Hill Hair Drug Testing

Get fast, accurate hair drug testing at our convenient Castle Hill, CA locations—results you can trust, every time!

Castle Hill Alcohol Testing

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

Castle Hill Drug Testing Services

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

Castle Hill 5 Panel Drug Test

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

Castle Hill 10 Panel Drug Test

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

Castle Hill On Site Drug Testing

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

Castle Hill DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Castle Hill, 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

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

phone support has been excellent

I have used ADT several times. Their phone support has been excellent, both when putting in the orders and when asking for help to interpret results.

Tee Ess - 12/19/2024

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


(800) 221-4291