What are the three source documents for drug testing?

The correct answer identifies the three essential source documents for drug testing as DD Form 2624, the Testing Registry, and bottle labels.

DD Form 2624 is the official document that outlines the procedures for the collection and testing of urine samples for drug use. It plays a crucial role in maintaining the integrity and legality of the testing process. The Testing Registry is critical because it tracks personnel who are subject to drug testing and ensures that the tests are administered fairly and consistently across the unit. Bottle labels serve to ensure proper identification of samples and to prevent any mix-ups, thereby preserving the chain of custody from the point of collection through to laboratory analysis.

Together, these documents ensure that the entire drug testing process complies with legal standards and that results can be trusted for any necessary administrative or disciplinary actions.