Drug Testing For Department Of Transportation Mandated Companies Nationwide

DOT Drug & Alcohol Program Administration For Transportation Employers

About Preferred Alliance

If you’re running a transportation company in the United States, there will inevitably come the time that you consider screening your employees for drugs and alcohol. The Department of Transportation (DOT) enforces regulations for employees working in transportation companies, and safety and security are among the most important of these regulations.

To ensure safety, the Department Of Transportation has outlined some procedures for drug and alcohol screening that should be administered to employees of transportation companies. But how do you get ahold of this information? That’s where you can count on Preferred Alliance.

Call us today at (877) 272-5227

What Preferred Alliance Can Do For Your Company


Preferred Alliance has been a third party drug screening group working with the Department of Transportation for over 40 years.

Based in California, we help growing companies develop their own drug and alcohol screening programs that adheres to DOT regulations.

Since transportation employees often have the lives and safety of other people in their hands as part of their jobs, they are among the most routinely screened workers in America.

The Department Of Transportation takes substance abuse very seriously and puts the safety of civilians and customers as their first priority.

About Preferred Alliance

Who We Serve


We serve anybody who is designated by DOT regulations as a safety-sensitive employee, which whom is liable to be screened for drugs and alcohol. This describes a huge number of job positions – anyone with work that involve the operation of motor vehicles or the transportation of passengers will be considered safety-sensitive functions, as well as the majority of positions aboard vehicles, planes, and boats will also require drug testing.

A more complete list of safety-sensitive functions can be found in the DOT’s policy document.



Is My Company Eligible For Drug Testing?


Absolutely! Any employer is legally obliged to test their employees to see if they’re sober during work hours. The tricky part is figuring out how to do that according to the law.

Here at Preferred Alliance, we help commercial industries that are mandated by the DOT as well as Non-DOT organizations.  Some lines of business, particularly transportation, have fairly tight rules and regulations set by the DOT that you must adhere to as the head of your company.

Department Of Transportation Modalities

DOT agencies provide the rules and regulations on precisely how these drug tests are supposed to be performed. They determine who is eligible for testing, when they are tested, in what situations tests are required, and so on.

The details on testing procedures are published by the Office of the Secretary’s Office of Drug & Alcohol Policy & Compliance (ODAPC). Preferred Alliance will help you obtain and understand the information you need to start drug testing your employees.

Drug Testing For Truck Companies In CA

Federal Motor Carrier Safety Administration


Responsible for regulating motor carriers and employees holding commercial driver’s licenses (CDL) who operate vehicles as part of their employment. DOT regulation 49 CFR Part 382 contains all the specific regulations for bus drivers, commercial truck drivers, or anyone else whose employment requires them to use a CDL.

Transit Drug Testing In Northern California

Federal Transit Administration


In charge of overseeing most jobs that are a part of public transit systems like buses and subways and has one of the most comprehensive sets of rules and regulations for drug and alcohol testing.

Aviation Drug Testing In CA

Federal Aviation Administration


This department is overseen by the Drug Abatement Division and they will make sure that you and your employees comply with the regulations. We can help you determine the necessary steps to take to satisfy the Drug Abatement Division.

Railroad Drug Testing In California

Federal Railroad Administration


The Federal Railroad Administration has had regulated drug tests implemented since 1986. Nowadays they affect conductors, brakemen, switchmen, engineers, locomotive hostlers/helpers, dispatching employees who use radio communications (e.g., train dispatchers, control operators), signal holders, operators, and maintenance employees.

Hazardous Materials And Pipeline Drug Testing In CA

Pipeline & Hazardous Materials Safety Admin


Responsible over regulations that test pipe fitters, pipeline workers and other safety-sensitive employees in the pipeline industry. They have a 25% random drug testing rate to ensure that employees stay clean.

United States Coast Guard Drug Testing In Northern CA

The United States Coast Guard


Now with the Department of Homeland Security, The Coast Guard regulates both the employers and the employees of companies and businesses operating commercial vessels. They also assume a random drug testing rate of 25%.

Drug Testing Can Be Complicated. Let Us Help You.

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Who We Have Helped

Some Trucking companies also have seasonal programs which can be difficult to monitor. Preferred Alliance has handled this challenge very well. We have provided a compliant program for these seasonal trucking companies every calendar year.

Panella Trucking is one of the largest seasonal providers in the US. We have served them completely for more than 10 years.



“Merced County Schools Insurance Group has contracted with Preferred Alliance since DOT-compliance for our Member District’s commercially licensed drivers. The program has been seamless, and without exception, perfectly compliant and trouble-free.”

Terri Prichard, Merced County Schools Insurance Group

“DOT regulations are very complex with plenty of gray areas – one mistake can close us down. Preferred Alliance’s timely response and accurate information on how to manage the testing process has helped us achieve ‘letter-perfect’ compliance. We have had a great relationship for almost 10 years – there’s no reason to consider anyone else.”

Leroy Ehlers, Panella Trucking, LLC

“I have had the pleasure of working with Preferred Alliance for our seasonal drug testing needs since 1998. In our industry, we place high demands on our testing providers for flexible scheduling, quick turnaround, and competitive pricing. Preferred Alliance has consistently exceeded our expectations.”

Mike Kilpatrick, Del Monte Foods

Transportation Companies Across Northern CA Choose Preferred Alliance


Non-DOT Transportation Companies

We are happy to help Non-DOT organizations set up a plan for employee drug and alcohol screening.

As a company that’s not regulated by DOT, you can decide through your company policy on the who, what, where, when, and why of your drug testing procedures. This gives you more freedom and control over the safety of your workers.

About Preferred Alliance
About Preferred Alliance

Here are a few of the things we can help you implement into your drug testing plan:

  • We can screen for all substances required by the Department Of Transportation.

  • We offer comprehensive policy review and can help you with any questions concerning your own policy.

  • Our certified laboratories ensure accurate results.

  • We can go beyond what is required of Department Of Transportation if you choose.

We Are Here To Assist You in Maintaining a Drug-Free Workplace!

We have satisfied thousands of clients during the last 40+ years. With our meticulous, fast, and effective drug testing protocols, we promise to meet the needs of your business. If you’re looking for someone to help your transportation business develop proper drug-testing procedures, look no further. Preferred Alliance has worked with the Department of Transportation for many years.

Let’s Get Started!