DOT Drug Testing in Houston, TX

Local Testing Centers

We provide Houston Texas DOT Drug Testing, DOT Alcohol Testing, DOT Physicals and DOT Consortium enrollment at locations throughout the State of Texas. Our Houston, TX DOT Drug Testing locations are within minutes of your home or office. Same day service is available in most places.

The staff of Smart Drug Testing is trained and certified in Texas DOT drug testing procedures and all Houston, TX DOT drug tests are analyzed by a SAMHSA Certified Laboratory and reviewed by our licensed physicians, who serve as the Medical Review Officers (MRO). To schedule a DOT drug test at any of our Texas locations, call (800) 977-8664 or you may schedule your test 24/7 by clicking the "Order your Test" button.

Please be aware that our Texas DOT drug testing centers do not accept any form of payment and require a test registration/ donor pass to administer a drug, alcohol, or any other type of test. You must call (800) 977-8664 to register for a test or you may register online, no appointment is needed, but a test registration form is required. Your zip code will be used to find our closet drug testing center to perform the drug or alcohol test which is needed.

Our Texas drug testing services are delivered with the highest commitment to customer satisfaction and we are dedicated to providing convenient, cost effective and confidential drug and alcohol testing services with one of the fastest results reporting methods available in the industry. Regardless if you are an individual ordering one test or an employer scheduling 100 tests, our commitment to providing outstanding customer service is the same. We also only use certified laboratories and all test results are verified by our Medical Review Officers (MRO).

On the road or on vacation? No worries. Smart Drug Testing has over 10,000 Drug and alcohol testing centers available in all cities and we can schedule your DOT Drug test, ANYWHERE, ANYTIME!

What is a DOT drug test?

A DOT Drug test is a drug test that’s regulated by the government, specifically, the Department of Transportation (DOT).

In 1991, the US Congress passed the Omnibus Transportation Employee Testing Act when they recognized the need for a drug and alcohol-free transportation industry. The act required DOT agencies to implement drug and alcohol testing of safety-sensitive employees to maintain the safety of the traveling public and workers.

The DOT’s drug screening rules and procedures are listed within Title 49 of the Code of Federal Regulations (CFR) Part 40, commonly known as “Part 40.” These rules are published by an office within the DOT; the Office of Drug & Alcohol Policy & Compliance (ODAPC).

DOT agencies and the U.S. Coast Guard write industry specific regulations that explain who is subject to testing, when, and in what situations. Industry employers implement the regulations that apply to their business.

Order a DOT Drug Test

Does your business fall under the jurisdiction of the Department of Transportation? Smart Drug Testing is a professional at establishing and administering DOT-compliant testing programs for any business in the transportation industry. We’re a consortium and third-party administrator, and we can manage your entire drug testing process from start to finish.

If you are a DOT-regulated company required to have a DOT-compliant drug and alcohol program in place, we can provide your business with complete driver drug and alcohol testing and program services. These include:

Writing your drug-free workplace policy
Collecting specimens and conducting driver drug and alcohol testing
Having all results verified by a medical review officer (MRO)
Training your Designated Employer Representative

Introduction to Houston

Houston (/ˈhjuːstən/ (listen) HEW-stən) is the most populous city in the U.S. state of Texas, fourth most populous city in the United States, as well as the sixth most populous in North America, with an estimated 2018 population of 2,325,502. Located in Southeast Texas near Galveston Bay and the Gulf of Mexico, it is the seat of Harris County and the principal city of the Greater Houston metropolitan area, which is the fifth most populous metropolitan statistical area in the United States and the second most populous in Texas after the Dallas-Fort Worth metroplex, with a population of 6,997,384 in 2018.

Comprising a total area of 637.4 square miles (1,651 km2), Houston is the eighth most expansive city in the United States (including consolidated city-counties). It is the largest city in the United States by total area, whose government is not consolidated with that of a county, parish or borough. Though primarily in Harris County, small portions of the city extend into Fort Bend and Montgomery counties, bordering other principal communities of Greater Houston such as Sugar Land and The Woodlands.

The city of Houston was founded by land speculators on August 30, 1836, at the confluence of Buffalo Bayou and White Oak Bayou (a point now known as Allen's Landing) and incorporated as a city on June 5, 1837. The city is named after former General Sam Houston, who was president of the Republic of Texas and had won Texas' independence from Mexico at the Battle of San Jacinto 25 miles (40 km) east of Allen's Landing. After briefly serving as the capital of the Texas Republic in the late 1830s, Houston grew steadily into a regional trading center for the remainder of the 19th century.

What do DOT drug tests test for?

All DOT drug tests use the same 5-panel test. It tests for:

Marijuana metabolites/THC
Cocaine metabolites
Amphetamines (including methamphetamine, MDMA)
Opioids* (including codeine, heroin (6-AM), morphine, hydrocodone, oxycodone, hydromorphone, and oxymorphone)
Phencyclidine (PCP)

Although there are several options for drug tests, DOT regulated drug tests must use urine samples.

When are safety-sensitive employees required to get DOT drug tests?

DOT drug tests are required in the following situations:

Pre-employment, or before you start your job responsibilities.

Reasonable suspicion/cause, or if one or more trained supervisors reasonably believes/suspects that you are under the influence of drugs. This must be based on observations concerning appearance, behavior, speech, smell, etc.

Random testing. Random tests must use a truly random selection process, each employee must have an equal chance to be selected and tested. These are completed quarterly.

Return-to-duty testing, which is required after a violation of drug and alcohol rules. You can’t return to any DOT job before being tested and may be subject to unannounced testing at least 6 times in first 12 months. These tests must be conducted under direct observation.

Follow-up testing that takes place after return-to-duty. A Substance Abuse Professional (SAP) manages the follow-up testing for up to 5 years, determining how many times an employee is tested, and for what substance. These are completed in addition to other DOT required testing.

Post-accident testing. This is required if you’re involved in an accident meeting certain DOT criteria. An alcohol test must occur within 8 hours of the accident, and a drug test within 32 hours.

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. This depends on your company’s policy or employment agreement.

DOT Drug Testing Locations in Houston TX

19450 KATY FWY

19450 KATY FWY
Houston, TX 77094