The DEA biennial inventory:

The DEA biennial inventory:

• A. Is required to be signed and dated, with an indication whether the inventory was performed at the beginning or end of the day.
• B. Is required to be signed only if a schedule II drug is involved
• C. Needs no date but must be signed
• D. Is optional for most schedules

Answer: (A)

DEA's biennial inventory requires a physical count of all controlled substances to be documented in a record that is signed and dated and clearly indicates whether the inventory was taken at the beginning or end of the business day. This combination—signature, date, and the opening/closing timing—creates an auditable, time-stamped snapshot of stock that supports accountability and compliance during audits. The requirement applies to the controlled substances generally, not only to a specific schedule, and the date and signature are both mandatory rather than optional or missing.

DEA's biennial inventory requires a physical count of all controlled substances to be documented in a record that is signed and dated and clearly indicates whether the inventory was taken at the beginning or end of the business day. This combination—signature, date, and the opening/closing timing—creates an auditable, time-stamped snapshot of stock that supports accountability and compliance during audits. The requirement applies to the controlled substances generally, not only to a specific schedule, and the date and signature are both mandatory rather than optional or missing.