DEA records
Vet Clinic Controlled-Substance Log Requirements
A controlled-substance log is the clinic's day-to-day proof that received, dispensed, administered, wasted, and disposed quantities reconcile.
Verified · 2026-07-06What federal records have to do
DEA record rules require complete and accurate records for controlled substances received, sold, delivered, dispensed, or otherwise disposed of. 1 2
Records must be maintained separately for each registered location. 1
Required records must generally be kept for at least two years and be available for inspection and copying. 3
Minimum log fields
For each drug movement, a practical log should identify the drug, strength, finished form, date, quantity, and transaction type. 1 2
For dispensing or administration from office stock, the log should tie the disposition to the patient/client record so the inventory decrease can be explained. 2
For wastage, breakage, spillage, or other losses that are not theft/significant loss, the disposition still needs to be properly recorded. 1
Why running balances help
Federal rules do not use the phrase running balance as a universal requirement for every practitioner log, but a running balance is the simplest way to prove that complete and accurate records reconcile. 1
A running balance also makes discrepancies visible early, before a small documentation problem becomes an unexplained inventory gap. 1 4
Sources
Verified against primary sources on 2026-07-06. Each entry shows its own check date.
- DEA / 21 CFR — 21 CFR 1304.21(a), (b), (d), (e) — General requirements for continuing records. www.ecfr.gov/current/title-21/section-1304.21 checked 2026-07-06
- DEA / 21 CFR — 21 CFR 1304.22(c) (incorporating (a)(2)(i), (ii), (iv), (vii), (ix)) — Records for dispensers (via manufacturer record elements). www.ecfr.gov/current/title-21/section-1304.22 checked 2026-07-06
- DEA / 21 CFR — 21 CFR 1304.04(a), (c), (f)-(g) — Maintenance of records and inventories. www.ecfr.gov/current/title-21/section-1304.04 checked 2026-07-06
- DEA / 21 CFR — 21 CFR 1301.76(a), (b) — Other security controls for practitioners (employment restriction; theft/loss reporting). www.ecfr.gov/current/title-21/section-1301.76 checked 2026-07-06