They are testing for 6 susbstances of abuse. I am almost positive 5 of them are THC, cocaine, PCP, amphetamine, and opiates. The 6th could be anything from off topic to off topic. They will be using a 50 ng/ml cutoff for THC, which is the norm, so they will be testing for THC. They are also testing alcohol use and the use of nitrite additives which can alter results.