Home   About   Careers   News   Contact

DOT Alcohol Breathalyzer Testing in San Antonio

Fastest Labs of San Antonio offers comprehensive DOT testing solutions including drug testing and San Antonio DOT alcohol breathalyzer and urine testing services. Our certified San Antonio lab specializes in both DOT and non-DOT drug testing services as well as DOT program development and management. We commonly work with all size companies with employees in safety sensitive positions. Our San Antonio DOT specialists can assist with pre-employment drug testing, random testing, post-accident, follow-up testing and much more.

About Federal DOT Alcohol Testing Regulations

Per the Department of Transportation (DOT) 49 CFR Part 40 (Drug and Alcohol Regulations), an evidential breath testing device (EBT) must be approved by the NHTSA for the use of DOT alcohol testing. The EBT alcohol testing machine must be operated by a certified breath alcohol technician (BAT).

A DOT breath alcohol test is considered to be positive under any of the following situations:

  • A confirmation result of 0.04 or greater
  • Refusal to complete and sign the breath alcohol testing form
  • Refusal to provide breath
  • Refusal to provide an adequate amount of breath
  • Refusal to otherwise cooperate with the testing process

 Contact our San Antonio Lab

Certified DOT Drug Testing San Antonio

DOT Drug Testing Services

Each state has specific requirements for DOT drug testing. The drug testing regulations vary according to the actual employer- be it the state government or private company - but all safety-sensitive employees and employers within the six agencies under the DOT umbrella (FMCSA, FAA, FTA, PHMSA, USCG, FRA) must have proof that they are complying with a drug and alcohol screening program .

Mobile DOT Drug Testing

Fastest Labs provides the most comprehensive and accurate drug and alcohol testing service in the industry. One of our specialties is on-site San Antonio DOT testing using our mobile labs. Our DOT services also include DOT consortiums and recurring testing for commercial drivers and employers required to comply with US Department of Transportation (DOT) drug testing regulations.


Types of DOT Alcohol Breath Testing

Because alcohol is a legal substance, alcohol testing is authorized only during, just before, or just after the employee performs safety-sensitive functions. According to the Federal Motor Carrier Safety Administration (FMCSA), the following alcohol tests are required:

  • Post-accident - conducted after accidents on drivers whose performance could have contributed to the accident (as determined by a citation for a moving traffic violation) and for all fatal accidents even if the driver is not cited for a moving traffic violation.
  • Reasonable suspicion - conducted when a trained supervisor or company official observes behavior or appearance that is characteristic of alcohol misuse.
  • Random - conducted on a random unannounced basis just before, during, or just after performance of safety-sensitive functions.
  • Return-to-duty and follow-up - conducted when an individual who has violated the prohibited alcohol conduct standards returns to performing safety-sensitive duties. Follow-up tests are unannounced. At least 6 tests must be conducted in the first 12 months after a driver returns to duty. Follow-up testing may be extended for up to 60 months following return to duty.

Schedule a DOT Test Today

Certified DOT Breath Testing San Antonio

Current San Antonio Promotions

$1 Off Breath Alcohol
$1 Off Breath Alcohol Test.
$5 Off Hair Test!
Get $5 off your next Hair Follicle Drug Test.

Why Choose Fastest Labs of San Antonio?

  • Certified San Antonio Lab Technicians

    All San Antonio Fastest Labs drug and DNA testing lab techs are certified professional test collectors as well as certified professional breath and DOT alcohol screening technicians. Learn More

  • Cleanest San Antonio Testing Facilities

    Our San Antonio drug, alcohol and DNA testing labs are the cleanest and most comfortable labs around. Learn More

  • Fastest San Antonio Service & Rapid Test Results

    At our San Antonio lab, you will be served within 5 min of your arrival. On most tests, you get immediate results. On lab tests, your results will be ready in less than 24 hours. Learn More

  • Best Lab Test Customer Service in San Antonio

    Our friendly San Antonio drug test customer techs are top notch and they have the highest customer service ratings in the industry. Learn More

  • Affordable San Antonio Pricing

    Our San Antonio lab will strive to meet or beat any competitors' pricing! Learn More

Contact Our San Antonio Lab Today!

Drug and Alcohol Testing Services in San Antonio

DOT Drug Test Solutions San Antonio

Fastest Labs of San Antonio provides full-service DOT and Drug Free Workplace program services in San Antonio. In addition to DOT alcohol breath testing, we offer the following San Antonio DOT services:


Fastest Growing Lab Testing Franchise!

The Fas-Tes® franchise (owner of FastestLabs.com) is one of the fastest growing 3rd party collection drug, alcohol and DNA lab test franchises in the nation. With explosive demand, the drug, alcohol, and DNA testing industry has quickly become one of the fastest growing industries in the world. 

Find out how easy it is to join Fas-tes® in owning your own business today!

Certified Drug Testing San Antonio

Approved Collection Sites For:

Please check with the lab nearest you as our San Antonio locations each have their own set of affiliations

eScreen Collection Site San AntonioDISA Collection Site San AntonioQuest Collection Site San AntonioLabcorp Collection Site San AntonioExpertox Collection Site San AntonioClinical Reference Laboratory San AntonioOmega Collection Lab San AntonioAlere Collection Lab San AntonioMedtox Collection Lab San AntonioDISA Collection SIte San AntonioPsychemedics Corporation San Antonio