Which substances are not included in the standard DOT drug testing panel?

The standard DOT drug testing panel primarily focuses on substances that are considered to impair an individual's ability to perform safely in safety-sensitive positions. The substances included in this panel are marijuana, cocaine, opiates (such as heroin), amphetamines (including methamphetamine), and phencyclidine (PCP).

Alcohol and prescription medications that are not being abused do not fall under the scope of this specific drug testing panel. This is because the DOT aims to monitor for illicit use of substances that pose a risk of impairment rather than legal medications that are taken as prescribed. Therefore, the mention of alcohol and prescription medications not abused means that these are not included in the standard DOT drug testing requirements, making this the correct answer.

In contrast, cocaine, marijuana, heroin, methamphetamine, and phencyclidine are all included substances in the DOT testing panel, highlighting the importance of testing for these drugs in safety-sensitive positions.