Final answer:
Controlled substance records need to be retained for a minimum of 2 years, but they may need to be kept indefinitely.
Step-by-step explanation:
Controlled substance records need to be retained for different periods of time depending on the specific activity:
- Receiving, selling, delivering, disposing: 2 years
- Inventory: 2 years
- Manufacturing, relabeling, repackaging: 2 years
There is no specific time requirement for retaining controlled substance records, as they may need to be kept indefinitely. However, the general recommendation is to retain these records for a minimum of 2 years.