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Drug & Alcohol Testing

Breath Alcohol Testing

DOT-compliant evidential breath alcohol testing (EBT) for post-accident, reasonable suspicion, random, and return-to-duty screening. Certified BATs with NHTSA-approved devices.

DOT alcohol testing requires evidential breath alcohol testing (EBT) devices operated by trained breath alcohol technicians (BATs). Alcohol testing is time-critical—post-accident alcohol tests must occur within 8 hours, and reasonable suspicion alcohol testing must happen immediately. Unlike drug tests that can wait 24-32 hours, alcohol testing windows are short and unforgiving.

DSC provides complete DOT-compliant breath alcohol testing through our network of certified BATs using calibrated EBT devices. We conduct screening tests, confirmation tests when required, and maintain complete chain-of-custody documentation meeting Part 40 standards. Our breath alcohol testing services include: post-accident alcohol testing within the 8-hour window, reasonable suspicion testing available same-day, random alcohol testing as part of consortium selections, pre-duty screening for safety-sensitive positions, and return-to-duty and follow-up alcohol testing per SAP plans. All tests are conducted by certified BATs using NHTSA-approved EBT devices with proper calibration documentation. Don't risk the 8-hour post-accident window—activate 24/7 breath alcohol testing support.

Key Features

NHTSA-Approved EBT Devices

All testing conducted with approved evidential breath testing devices meeting federal conforming products list standards.

Certified BAT Network

Trained Breath Alcohol Technicians available 24/7 to conduct screening and confirmation tests anywhere in the U.S.

8-Hour Post-Accident Compliance

Emergency BAT dispatch ensures post-accident alcohol testing occurs within the critical 8-hour window.

Compliance Requirements

Compliance Requirement

49 CFR Part 40, Subpart L specifies alcohol testing procedures. Testing must be conducted using evidential breath testing (EBT) devices that are on the NHTSA Conforming Products List. Breath Alcohol Technicians (BATs) must be trained in EBT operation, quality assurance procedures, and error correction protocols. Post-accident alcohol testing must occur within 8 hours. Random alcohol testing minimum rate is 10% annually. Screening tests of 0.02 or greater require confirmation tests.

How Diversified Helps

  • Network of certified Breath Alcohol Technicians (BATs) nationwide
  • NHTSA-approved EBT devices with current calibration certifications
  • Screening and confirmation testing per Part 40 protocols
  • 24/7 emergency BAT dispatch for post-accident scenarios
  • Same-day scheduling for reasonable suspicion alcohol testing
  • Random alcohol testing integrated with consortium selections
  • Complete chain-of-custody documentation and result reporting
  • Training for employer-provided BAT certification (if desired)

Frequently Asked Questions

An Evidential Breath Testing (EBT) device is an alcohol screening device on the NHTSA Conforming Products List that can produce printed results identifying the test subject and the test number. DOT alcohol testing must use approved EBT devices—portable breathalyzers not on the CPL are not acceptable.

A screening breath alcohol test takes approximately 5-10 minutes. If the screening result is 0.02 or greater, a confirmation test is required 15 minutes later. Total testing time including confirmation is typically 30-40 minutes.

A confirmed breath alcohol concentration of 0.04 or greater violates DOT regulations. The driver must be immediately removed from safety-sensitive functions, the result must be reported to the FMCSA Clearinghouse, and the driver must complete the RTD process including SAP evaluation before returning to duty.

Yes. Breath alcohol testing is available as part of our Mobile Collection Service. This is particularly important for post-accident scenarios where the 8-hour testing window requires immediate onsite response.

Get Started

Meet the critical 8-hour post-accident window with certified BAT testing and proper documentation.

Contact our testing specialists to learn how we can support your drug and alcohol testing program.

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