Prior to testing, what must an operator verify about the test subject?

The requirement for the operator to verify that the subject’s health is stable and able to provide a breath sample is essential to ensure the accuracy and reliability of the testing process. If the subject is not in a suitable health condition, it may impact their ability to provide a valid breath sample, which can lead to incorrect test results. This step is crucial because the Intoxilyzer measures the breath alcohol concentration, and factors such as respiratory issues could affect the sample’s validity.

In contrast, determining if the subject has recently consumed alcohol, whether they are registered with the operator, or their familiarity with the testing process does not directly address the immediate physical capability needed to conduct the test effectively. Prioritizing the health and well-being of the test subject ensures that the process adheres to safety standards and yields accurate results.