Understanding DOT Drug & Alcohol Testing (2023)

  • Trucking Topics
  • Understanding DOT Drug & Alcohol Testing (1)
  • CDL Drug Test Failure & Return-to-Duty Process

One of the most stringent standards that CDL holders must comply with is regular drug testing to ensure they are abstaining from drugs and alcohol.

Avoiding these substances is the best way to prevent career-threatening consequences. There is a standard return-to-duty process for those who fail a DOT drug test. However, completing this program does not guarantee that anyone will hire you. The companies themselves still make that decision.

A primary factor will be the decisions of the Substance Abuse Professionals (SAPs) that works with the driver. The SAP is the primary decision point (and, in some cases, the only decision point) for an employer. SAPs play a large part in a company's choice of whether or not to place an employee behind the steering wheel of a tractor-trailer, in the cockpit of a plane, or in any safety-related role.

When Must a CDL Driver Submit to Drug or Alcohol Testing?

Random drug and alcohol screening is a Federal requirement in the trucking industry. In addition to random testing, drivers may be tested at any of the following times or circumstances:

  • Pre-employment
  • Post-accident
  • Return to duty after a failed test
  • For reasonable suspicion
  • Following up after return-to-duty

What Happens After You Give a Sample for Drugs or Alcohol?

They will split the sample you've provided into two parts, "A" & "B." This is for quality control purposes. Laboratory staff will check to ensure the sample is not flawed or contaminated.

First, they will only test the "A" sample. Then, if the test is positive, they will perform another test using a different method. (Samples are stored for at least 12 months.)

Findings from the tests will be reported to the Medical Review Officer (MRO). The Medical Review Officer (MRO) will review the paperwork and, in the case of a negative result, will inform the employer.

(Video) DOT Drug and Alcohol Testing For Trucking Companies

In the case of a positive result, the MRO will interview the employee to determine if a legitimate medical reason exists for the positive result. If they find a valid medical reason for the positive test, the MRO will report a "negative" result to the employer. Otherwise, you will have 72 hours to request a test on the "B" sample from another certified lab.

What Happens If You Fail or Refuse a DOT Drug or Alcohol Test?

Many are under the mistaken impression that the best way to avoid a substance screening is to refuse to take one. Do not do this. Anyone who refuses a DOT drug or alcohol test will be subject to the following procedures:

  • They will remove you immediately from any DOT-related safety-sensitive functions.
  • You will not be allowed to return to those duties until you have:
    • Been evaluated by a Substance Abuse Professional (SAP)
    • Completed any treatment, counseling, or education directed by the SAP
    • Provided a negative drug or alcohol test

When you do return to a DOT-related safety-sensitive position, you will be subject to unannounced testing for drugs and/or alcohol at LEAST 6 times during the next 12 months, and—depending on the evaluation of the SAP—you could be subject to this testing for up to 60 months.

What is an SAP?

SAPs are substance abuse professionals who will evaluate employees that have failed a DOT drug or alcohol test. These professionals meet with the employee and make recommendations concerning treatment, education, follow-up testing, and other aftercare matters.

SAPs must be licensed employee assistance professionals. They are often physicians, though SAPs can also be social workers, psychologists, substance abuse counselors, or other licensed employee assistance professionals.

SAPs must also have specific knowledge of how their role relates to the particular responsibilities that employers have for ensuring the safety of the traveling public. An SAP must also have mastery of 49 CFR Part 40 (the regulations for workplace drug testing), other pertinent DOT agency regulations, and SAP guidelines.

What Role Does an SAP Play in the Return-to-Duty Process?

The SAP will conduct the clinical evaluation. This face-to-face session helps the SAP determine what help the employee may need in dealing with drugs or alcohol. After doing so, the SAP will refer the employee to the proper sources for treatment. Follow-up interviews are conducted to make sure that the program is working as intended and that the driver is complying with all aspects of treatment.

The SAP will also provide employers with a follow-up screening regimen and recommendations to both employer and employee for continued treatment and education. An employer cannot require more stringent testing than the SAP has outlined in their continuing treatment plan.

How Can You Return to Trucking If You Fail a Drug or Alcohol Screening?

A return to trucking after a failed DOT drug or alcohol test can be difficult, if not impossible. Due to various reasons, such as insurance liability, many companies will be hesitant to offer employment with such a black mark on your driving history. Be prepared for additional testing with more rigorous drug testing methods such as hair follicle testing. Hair follicle tests can show positive results for narcotics going back 90 days or more.

The return-to-duty procedure is as follows:

(Video) Understanding DOT Drug and Alcohol Testing Regulations

  • 1. Have an initial evaluation by an SAP
  • 2. Follow all courses of recommendation as laid out by the SAP
  • 3. Examples of treatment may include in-patient hospitalization, outpatient programs, drug and alcohol education courses, one-on-one counseling, and the use of organizations such as Alcoholics Anonymous or Narcotics Anonymous.
  • 4. After completing the treatment plan, the original SAP will reevaluate the employee for progress.
  • 5. After a final successful meeting, the SAP will provide a "report of compliance." The employee must provide this report to all current or future employers.
  • 6. If you fail any of the above steps or the return-to-duty drug and alcohol test, you must start the entire process.
  • 7. Follow-up testing will consist of at least six random screenings in the first 12 months and up to 48 months of additional testing required by the SAP.

You will find an overview of the return-to-duty process on the Department of Transportations website.

What Do You Need to Know About the Return-to-Duty Process?

After an employee fails a drug or alcohol test and is removed from service, the employer must next provide the employee or applicant a list of readily available SAPs at no charge. This list will include names, addresses, and phone numbers.

However, employers are not required to provide or pay for the SAP evaluation and subsequent treatment. Payment of such services is left solely up to the decisions of employers and employees.

Drivers will have to stick with the same SAP they used initially. There are no second opinions, and they must complete the process with a single SAP. The SAP's decisions and recommendations will be treated as final for all intents and purposes.

It is the driver's responsibility to pay for the SAP's services, which is between the driver and the SAP.

Scheduling and dates of follow-up testing are up to the employer, not the SAP.

Must Employers Be Informed About Failed Drug or Alcohol Tests and the Return-to-Duty process?

Because they perform safety-sensitive duties, CDL drivers must inform potential employers of any failed tests.

Will a failed drug test show up on my DAC report? And how will a new employer know that I failed a test?

Your DAC report is a record of your employment history. A firm called HireRight is responsible for maintaining the DAC report. Trucking companies use this data to find new drivers.

According to HireRight, the DAC reports contain: "Drug and alcohol history and pre-employment drug test results for commercial drivers that can be accessed instantly from our database of more than 4 million records."

In short, if a trucking company reports employment information to HireRight, and most do, it will show up on a driver's DAC report. All employers, including potential employers, must report failed DOT drug and alcohol testing information yearly. In addition, potential employers must request drug and alcohol testing information from previous employers.

(Video) Compliance with DOT Drug & Alcohol Testing Rules is The Law

Potential employers will ask you about previously failed drug tests or return-to-duty obligations.

The bottom line is that your new employer will find out about your previous test failures.

Straight From the Trucker's Mouth: Trucking Truth Forum Stories

Old School from Nacogdoches, Texas, on taking pre-employment drug tests seriously:

"Many trucking companies are implementing a hair follicle test into their screening process now. If you fail a drug test, you will be done - your career [is] stillborn. This business almost never allows a second chance when it comes to failed drug screenings. It is critical that you get that part right."

G-Town from Lewes, Delaware on random screenings:

"Many times, a test will be required after a period of home time. Be very careful who you hang out with. Inhalation of secondary pot smoke can possibly cause a positive result. At that point: game over."

LDRSHIP from Clarksville, Tennessee on the lifestyle of the career:

"…. little luxuries of spontaneous choices will not exist. This profession is federally governed and monitored. There is zero tolerance and zero wiggle room. Those who fail to play it straight risk their career, their future, [and] even their freedom."

Sources to Incorporate:

Dept. of Transportation Definition of SAP

Dept. of Transportation Return-to-Duty Guidelines

49 CFR Part 40 (Government drug testing procedures)

SAP Guidelines


Commercial Driver's License (CDL)

A CDL is required to drive any of the following vehicles:

  • Any combination of vehicles with a gross combined weight rating (GCWR) of 26,001 or more pounds, providing the gross vehicle weight rating (GVWR) of the vehicle being towed is in excess of 10,000 pounds.
  • Any single vehicle with a GVWR of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds.
  • Any vehicle, regardless of size, designed to transport 16 or more persons, including the driver.
  • Any vehicle required by federal regulations to be placarded while transporting hazardous materials.


Substance Abuse Professional

The Substance Abuse Professional (SAP) is a person who evaluates employees who have violated a DOT drug and alcohol program regulation and makes recommendations concerning education, treatment, follow-up testing, and aftercare.


Department Of Transportation

A department of the federal executive branch responsible for the national highways and for railroad and airline safety. It also manages Amtrak, the national railroad system, and the Coast Guard.

State and Federal DOT Officers are responsible for commercial vehicle enforcement. "The truck police" you could call them.


Body mass index (BMI)

BMI is a formula that uses weight and height to estimate body fat. For most people, BMI provides a reasonable estimate of body fat. The BMI's biggest weakness is that it doesn't consider individual factors such as bone or muscle mass. BMI may:

  • Underestimate body fat for older adults or other people with low muscle mass
  • Overestimate body fat for people who are very muscular and physically fit

It's quite common, especially for men, to fall into the "overweight" category if you happen to be stronger than average. If you're pretty strong but in good shape then pay no attention.


Drive-A-Check Report

A truck drivers DAC report will contain detailed information about their job history of the last 10 years as a CDL driver (as required by the DOT).

It may also contain your criminal history, drug test results, DOT infractions and accident history. The program is strictly voluntary from a company standpoint, but most of the medium-to-large carriers will participate.

Most trucking companies use DAC reports as part of their hiring and background check process. It is extremely important that drivers verify that the information contained in it is correct, and have it fixed if it's not.

(Video) DOT Drug and Alcohol Training


Hours Of Service

HOS refers to the logbook hours of service regulations.


Operating While Intoxicated

(Video) Random Drug and Alcohol Testing


What drugs are looked for during a DOT drug test? ›

DOT drug tests require laboratory testing (49 CFR Part 40 Subpart F) for the following five classes of drugs:
  • Marijuana.
  • Cocaine.
  • Opiates – opium and codeine derivatives.
  • Amphetamines and methamphetamines.
  • Phencyclidine – PCP.
Jul 22, 2021

What is the difference between a regular drug test and a DOT drug test? ›

DOT tests almost always use urine specimens, while non-DOT drug tests may use urine, saliva, or hair based on the state's regulations. DOT testing uses a document called the Federal Drug Testing Control and Custody Form (CCF). In non-DOT testing, each state, employer, or drug testing company can develop its forms.

Does a DOT urine test check for alcohol? ›

DOT testing can reveal the use of alcohol, opiates, marijuana, cocaine, PCP, amphetamines, and methamphetamines. Non-DOT testing looks for the presence of barbiturates, methadone, quaaludes, benzodiazepines, and propoxyphene.

What is a 10 panel drug test? ›

A 10-panel drug test screens for ten different types of illegal substances and commonly abused prescription drugs, like Adderall and Xanax. An expanded 10-panel screening identifies the same substances plus additional opiate types, such as Oxycodone.

What are the 5 drugs tested by DOT? ›

The 5-panel regimen will remain:
  • Marijuana (THC)
  • Cocaine.
  • Amphetamines.
  • Opiates.
  • Phencyclidine (PCP)
May 8, 2015

What happens if you test positive on a DOT drug test? ›

DOT and USCG regulation may prohibit you from performing your safety-sensitive functions after a positive test result or refusal to submit to testing. You should be aware that a positive, adulterated or substituted DOT drug or alcohol test may trigger consequences based on company policy or employment agreement.

What does a DOT urine test check for? ›

Your employer may request that you have a drug screen done while you take your DOT physical. That drug test typically screens for marijuana, cocaine, opiates, phencyclidine and amphetamines/methamphetamines.

Is it better to refuse a DOT drug test? ›

A refusal to take the drug and/or alcohol test is treated the same as a positive result, so it is not recommended that you refuse testing.

What does a failed DOT drug test mean? ›

What happens if I fail my DOT drug test? If you fail your DOT regulated drug test, DOT regulations require your employer to immediately remove you from performing any DOT safety-sensitive job. There may be other consequences, too, like losing your certification or license.

What is the dot alcohol cutoff level? ›

What type of alcohol use is prohibited? Employees must not report for duty to perform safety-sensitive functions while having a blood alcohol concentration (BAC) of 0.04% or greater.

How long does alcohol stay in your system for a dot test? ›

Alcohol detection tests can measure alcohol in the blood for up to 6 hours, on the breath for 12 to 24 hours, urine for 12 to 24 hours (72 or more hours with more advanced detection methods), saliva for 12 to 24 hours, and hair for up to 90 days.

What can be detected in a alcohol test? ›

Some of these tests can only determine the recent consumption of alcohol. Others can detect a pattern of alcohol abuse over time. The available tests can analyze samples of a person's breath, urine, blood, saliva, hair, and sweat.

Does Delta-8 show up on drug tests? ›

Delta-8 THC can show up on a regular drug test. Because it's chemically similar to delta-9 THC, it can cause a positive drug test for cannabis, even if you don't use “regular” cannabis products. If you know you'll be tested for cannabis, it's best to avoid delta-8 products altogether.

How common is a negative dilute drug test? ›

Reasons For A Dilute Specimen

According to literature, about five percent of specimens meet dilute criteria3. Occurrence of dilute specimens can be attributed to multiple reasons, a few of which are highlighted below.

How long does Delta-8 stay in your system? ›

Per our research, beginners can expect delta-8 to remain in their system for about four days. Regular users of the cannabinoid could see it last for about a month or longer. Occasional users of delta-8 might see it remain for just a week.

How does a DOT 5 panel drug test work? ›

DOT Compliant Five Panel Drug Testing

Department of Transportation (DOT) laboratory testing includes collection of the sample, transport to the laboratory, EMIT analysis, GC/MS confirmation by a SAMHSA-certified laboratory, and a test review by a Medical Review Officer.

How many types of DOT drug tests are there? ›

And to help educate you on those requirements, we're running through the six types of drug and alcohol tests that can be required by the DOT.

Does dot test for prescription drugs? ›

You may use prescription drugs and pass the drug test if you meet certain conditions stipulated in the Code of Federal Regulations (21 CFR 308, Schedules of Controlled Substances[3]), which are lists or schedules of controlled substances, such as opiates, opiate derivatives, hallucinogenic substances, depressants, and ...

Can you pass a alcohol test in 24 hours? ›

Urine tests can detect alcohol in your system much longer after you've consumed alcohol. On average, a urine test could detect alcohol between 12 to 48 hours after drinking. Some advanced urine tests can detect alcohol even 80 hours after you've had a drink. Alcohol can stay in your hair for a period of up to 90 days.

What to do after failing a DOT drug test? ›

You must immediately be removed from performing safety-sensitive functions (i.e., driving CMVs) until successful completion of the return-to-duty process with a DOT-qualified substance abuse professional. The DOT regulations outline refusals to test for drugs and alcohol.

How do you remove a failed DOT drug test? ›

The return-to-duty process will require you to: Be evaluated by a DOT-certified substance abuse professional (SAP). Complete the recommended course of treatment or education, at your own cost. Pass a follow-up drug and alcohol test, and submit to random testing for at least the next 12 months, up to 60 months.

How long does a urine DOT drug test take? ›

The results of negative DOT drug tests are typically available within 24 to 48 hours. Results of positive DOT drug tests typically take between three and five days to reach the employers.

How much urine is collected for a DOT drug test? ›

You must check to ensure that the specimen contains at least 45 mL of urine. If it does not, you must follow “shy bladder” procedures (see §40.193(b)).

What is the most common drug test for employment? ›

Urinalysis – A urine test is the most common form of pre-employment drug testing and is typically conducted once a conditional offer of employment has been sent. A urine test can show traces of drug use even after the effects of the drug have worn off and remain in the body for an extended period of time.

What are the 3 reasons for rejection and cancellation of drug test? ›

Rejected for Testing” (with the reason stated). You must always cancel such a test. (b) The following are “fatal flaws”: (1) There is no printed collector's. no collector's signature; (2) The specimen ID numbers on. the specimen bottle and the CCF do not match; (3) The specimen.

How much does dot SAP program cost? ›

On average, the SAP evaluation process can cost between $400 to $500. Drug tests average between $30 to $60 dollars each. The minimum SAP and follow-up testing program can cost an employer or the driver, depending on the company policy of who pays for the program, to be at least $700 for the first year.

How long does a positive DOT drug test take to come back? ›

Negative results, therefore, are generally available within 2-3 days, while positive test results may take up to a week to confirm.

What is drug and alcohol Clearinghouse? ›

Welcome to the Drug and Alcohol Clearinghouse

An online database that gives employers and government agencies real-time access to information about CDL driver drug and alcohol program violations.

How long is SAP program for truck drivers? ›

Depending on the SAP recommendation the program duration could be from 12 months to 5 years. The program is customized individually.

Is .15 alcohol level high? ›

0.13 – 0.15% – At this point, your blood alcohol level is quite high. You'll be affected by blurred vision, loss of coordination and balance, and potentially dysphoria (anxiety or restlessness).

What does .01 alcohol level mean? ›

BAC 0.0%: There's no alcohol in your blood (you're sober). BAC 0.02%: At this percentage, you may experience an altered mood, relaxation and a slight loss of judgment. BAC 0.05%: At this percentage, you may feel uninhibited and have lowered alertness and impaired judgment.

What is a 250 alcohol level? ›

Alcohol (Ethanol, Ethyl Alcohol)
Blood Alcohol ConcentrationClinical Signs & Symptoms
150 – 300 mg/dL 0.15 – 0.30 g/dLConfusion, disorientation, impaired balance, slurred speech
250 – 400 mg/dL 0.25 – 0.40 g/dLSleep or stupor, marked muscular incoordination, markedly decreased response to stimuli, incontinence
3 more rows

How do you dilute alcohol in your system? ›

Eating a meal and having food in the stomach prior to drinking can have a powerful influence on the absorption rate of alcohol. Food helps dilute the alcohol and slow the emptying of the stomach into the small intestine, where alcohol is rapidly absorbed.

Can you drink alcohol before giving a urine sample? ›

Before taking the urine sample, the patient must not eat or drink for 10–14 hours. If necessary, one glass of pure unflavoured water is allowed during that time. Befor the urine test, any physical or emotional effort, consuming of alcohol, and, if possible, using drugs, should be avoided.

When should you stop drinking alcohol before a drug test? ›

The only thing that affects a dilute sample is the amount of fluid taken in within a short period of time prior to providing the urine sample. If you are seeing results that show you are getting close to a dilute sample, try to stop drinking any fluids 2-4 hours prior to providing the sample.

How can I lower my BAC fast? ›

There is nothing a person can do to quickly reduce the blood alcohol concentration (BAC) level in their body. The liver needs time to filter blood and remove the alcohol from the system.
Appearing sober
  1. Coffee. ...
  2. Cold showers. ...
  3. Eating and drinking. ...
  4. Sleep. ...
  5. Exercise. ...
  6. Carbon or charcoal capsules.

How many drinks is .08 for a man? ›

Generally, a . 08 BAC level requires an average adult male to consume about four drinks (12-ounce beers) over two hours. However, this number is highly individualized as body weight and certain food consumption also affects BAC levels.

What are the two most common tests for alcohol? ›

The three most common methods for testing BAC are breath, blood, and urine tests. Many states require a breath test, but some allow you to request a blood or urine test.

Can you get fired for Delta 8? ›

So, even though Delta-8 isn't illegal, it will still show positive for THC and you will be fired for having it in your system.

How do I clean my Delta 8 system? ›

Delta-8 stays in your system depending on multiple factors regarding individual body, lifestyle, substance use amount, and drug test type. Delta-8 can be cleared from your system by extended abstinence, drinking large amounts of water, exercising, eating healthy, and detox products.

What is the fastest way to get Delta 8 out of your system? ›

The most effective way to clear Delta 8 from your system is to drink plenty of water. This will help you flush more Delta 8 THC via urination and will help dilute the remainder of the THC metabolites in your system. In addition to water, you can think about making a detox drink of your own!

How do I make sure my urine isn't diluted? ›

Avoid all diuretics-including caffeine-the day of the selection until AFTER the collection is done. Go to the collection site while the first morning urine is still in your bladder to use this as the specimen.

Can you fail a drug test for being too diluted? ›

Even though a urine sample is diluted, chances are excellent that there will still be enough of a tested drug or its metabolites in the sample to produce a positive result. If a sample is too diluted and the results are negative, the employer may send the employee back for additional testing.

What happens if your drug test comes back positive? ›

If the test result is proven to be legitimate (especially after multiple retests), you will most likely lose your job. If drug testing was part of a screening application, the company will probably revoke your job offer. However, in some industries or states, you might be given a second chance.

How long will 2 hits of delta-8 stay in your system? ›

While Delta-8 THC's effects last up to five hours in your body, its metabolites can stay in your system for up to 90 days. Luckily, the most common tests can detect metabolites for only a few days.

How long will delta-8 cause a positive drug test? ›

We strongly advise that you refrain from using delta-8 products for at least 30 days before taking a drug test. However, it is crucial to note that delta-8 can sometimes be found in the body for up to 90 days.

Can you fail drug test with delta 10? ›

The bad news is that yes, Delta-10 THC will make you fail a drug test. Much like Delta-8 THC, Delta-10 is a close cousin to Delta-9. It too has a similar chemical structure meaning that Delta-10 THC will most likely appear as THC on a standard drug test.

What is a urine DOT drug test? ›

What is a DOT drug test? It's a drug test that's regulated by the government – specifically, the Department of Transportation (DOT). In 1991, the U.S. Congress passed the Omnibus Transportation Employee Testing Act when they recognized the need for a drug and alcohol-free transportation industry.

Can I pass a DOT drug test with a prescription? ›

If you have a valid prescription, you should provide it to the MRO, who will determine if the prescription is valid. If a legitimate medical explanation is established, the MRO will report the result to your employer as a 'negative'. If not, the MRO will report the result to your employer as 'positive'.

How long does it take for a DOT drug test to come back? ›

Drug test results typically take 24 to 48 hours, depending on the type of test being performed (e.g., urine, hair or DOT).

What happens if you can't pee for a DOT drug test? ›

If you are unable to provide a sufficient amount of urine for a drug test, the collector must begin the "shy bladder" procedures. This procedure requires that you remain at the collection site.

How to pass DOT urine test for sugar? ›

Your diabetes must be under control!
  1. Exercise — It is a fantastic way to keep your blood sugar levels in a healthy range. ...
  2. Take your medication!
  3. Go into your exam well hydrated.
  4. Limit caffeine, cigarettes and alcohol.
  5. Choose foods that are low in calories, saturated fat, trans fat, sugar and salt. ...
  6. Eat more fiber.
Jul 25, 2018

Can truck drivers take Xanax? ›

The most common meds that create such issues are benzodiazepines, such as Klonopin and Xanax, and narcotics, such as Norco, Oxycodone or Tramadol. While FMCSA says benzodiazepines are disqualifying, that's not always the case in extremely rare instances.

How are hair follicle tests done? ›

During the test

Hair is collected as close to the scalp as possible, near the hair's root, to provide information about recent drug use. A standard sample of hair is around 1.5 inches, although in some cases a longer sample may be collected for additional history of drug use and misuse.

What does 12 panel drug test test for? ›

This panel contains the following components: Amphetamine, Barbiturates, Benzodiazepines, Cocaine, Methadone, Methamphetamine, Opiates, Oxycodone, Phencyclidine, Propoxyphene, Cannabinoids (THC), and Tricyclic Antidepressants or their metabolites.

How long do you have to take a random drug test? ›

In all circumstances, testing must be completed within 24 hours of selection.

What is 49 CFR Part 382? ›

eCFR :: 49 CFR Part 382 -- Controlled Substances and Alcohol Use and Testing.

How long after drug test will MRO call? ›

If the initial drug test is positive, the MRO will contact the donor to see if they are on any medications or have any other legitimate medical explanation for the positive result (usually within 24 hours). If the donor does not answer, the MRO may leave up to three voicemails. The donor is given 72 hours to respond.

How long does labcorp take for urine drug test results? ›

Labcorp's certified laboratories provide mass spectrometry confirmation for non-negative rapid test drug screens. Mass spectrometry confirmation results are typically available within 48-72 hours after the specimen is received in the laboratory.


1. DOT Random Drug and Alcohol Testing
2. What Is The DOT 5 Panel Drug Test? (Department Of Transportation Drug Testing)
(National Drug Screening)
3. DOT Alcohol and Drug Testing for Drivers
(Vector Solutions Industrial)
4. DOT Drug Testing & Consortiums
(National Drug Screening)
5. What's the difference between DOT Consortium Vs Clearinghouse?
(CNS Companies)
6. DOT Drug & Alcohol Employee Awareness Training
(AlcoPro: Drug and Alcohol Testing Products)


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