Breath Alcohol Testing in San Antonio

Fast, Non-Invasive Alcohol Readings from Certified Collectors

When an employer, agency, or individual needs to know a person’s current alcohol concentration, breath alcohol testing provides a prompt reading from an exhaled breath sample. This non-invasive method is designed for time-sensitive situations rather than assessing alcohol use over a longer period.

At Fastest Labs West San Antonio, our certified collectors conduct individual and workplace testing in a clean, comfortable facility. Walk-ins are welcome, wait times are kept short, and results may be available immediately. We also offer after-hours and post-accident service 24/7.

Arrange your alcohol test or confirm the service you need by calling (210) 864-6857.

Flexible Alcohol Screening for San Antonio Employers & Individuals

We serve individuals, small businesses, schools, and government agencies. Testing is available at our facility, while employers can arrange mobile or on-site service at a workplace or another designated location.

Common testing needs include:

• Individual requests: Personal testing or screening required by an outside organization
• Workplace testing: Alcohol screening under an employer program or company policy
• Post-accident testing: Time-sensitive collection after a qualifying workplace event
• Reasonable-suspicion testing: Screening initiated under an employer’s established procedures
• Program-based testing: Random, return-to-duty, or follow-up testing required by the applicable program

How DOT & Non-DOT Alcohol Testing Differ

The required procedure depends on whether the test is regulated by the U.S. Department of Transportation or requested under a non-DOT policy. Identifying the correct test before collection is important because requirements for documentation, equipment, personnel, and result handling differ.

DOT Breath Alcohol Testing

DOT alcohol testing follows federal procedures. A screening result below 0.02 ends the test, while a result of 0.02 or higher requires confirmation using an approved evidential breath testing device.

Federal rules require the confirmation test to occur after a waiting period of at least 15 minutes but no more than 30 minutes. During that period, the employee remains subject to the required testing conditions. These thresholds and procedures apply specifically to DOT-regulated tests.

Non-DOT Breath Alcohol Testing

Non-DOT testing follows the requesting employer’s policy or another party’s instructions. Before arriving, confirm the required test, form, result recipient, and documentation. The employer, agency, court, attorney, or other requesting authority determines which result it will accept.

What to Expect During Your Breath Alcohol Test

We first confirm who requested the test and whether DOT or non-DOT procedures apply. Bring any authorization form or instructions supplied by the employer or agency so our collector can follow the applicable requirements.

During the visit, our certified collector will:

• Review the testing request and supplied instructions
• Explain how to provide the breath sample
• Conduct the collection with attention to confidentiality and comfort
• Record, provide, or transmit the result according to the stated requirements