The mission of Texas Alcohol and Drug Testing Service, Inc., is to provide a confidential, cost-effective, high quality testing program geared toward everyone from the individual to the large corporation, while striving for integrity in testing.  We are the only choice when dependability counts.

EXPERIENCE: It Makes All The Difference

Established in 1994, Texas Alcohol and Drug Testing Service (TADTS) is an industry leader in helping companies establish a Drug-Free Workplace.

That experience includes federally mandated testing for the transportation, marine, aviation, pipeline and oil and gas industries.

Complying with federal and state rules and regulations related to testing requires a lot of time and effort. Many companies are not equipped to deal with ever-changing federal regulations and state legislation affecting the testing industry. Companies can take advantage of Third Party Administration (TPA) services provided by TADTS. Internal programs offered by a company can be charged with discriminative administration, unfair treatment, and wrongful discharge. Contracting with the experts at TADTS is a simple decision that can protect your business.


TADTS collectors are certified by the Drug and Alcohol Testing Industry Association (DATIA), and are also certified Breath Alcohol Technicians (BAT). TADTS collectors have received 12 hours of specialized training for specimen collection techniques in compliance with federal testing regulations.


The TADTS Corporate office is located in Houston, Texas. Five satellite offices are located in Brownsville, Huntsville, Longview, Portland & Uvalde, Texas. With a network of qualified collection sites around Texas and the United States, TADTS can assist your needs 24/7.