Which of the following is NOT a condition under which drug testing may be directed?

Monthly performance ratings are not a condition under which drug testing may be directed in the U.S. Army. Drug testing is primarily conducted under specific circumstances that aim to maintain the health and readiness of Soldiers, ensuring they meet the standards required for military service.

Unit inspections, competence for duty evaluations, and rehabilitation efforts are all legitimate situations where drug testing might be mandated. For example, unit inspections can be a routine way to ensure compliance with standards, while determining competence for duty may involve testing to confirm a Soldier's fitness for their role. Rehabilitation programs also often require testing to monitor an individual's progress and compliance with treatment protocols.

In contrast, using monthly performance ratings as a basis for drug testing implies that performance alone would trigger testing, which is not standard procedure within Army regulations. The focus of drug testing is rooted in safety, readiness, and the well-being of Soldiers rather than performance metrics.