# DEA Forms 222, 41 and 106 for Veterinary Clinics DEA Form 222 orders or transfers Schedule I and II controlled substances, DEA Form 41 documents the destruction of controlled substances, and DEA Form 106 reports theft or significant loss. Every US veterinary practice that handles controlled substances also needs an active DEA registration, usually obtained with DEA Form 224, and must complete a biennial inventory of all controlled substances on hand. Controlled substances are a routine part of small and large animal practice. Opioids, barbiturates, dissociatives, and benzodiazepines appear in anesthesia protocols, pain management plans, and euthanasia solutions. Each of those drugs carries a federal paper trail, and the paperwork is not optional. A missing DEA Form 222, an unsigned DEA Form 41, or a late DEA Form 106 can trigger an inspection, fines, or loss of registration. This article walks through the forms, the deadlines, the inventory rules, and the record-keeping habits that keep a clinic compliant. This article is educational and is not a substitute for veterinary diagnosis or treatment. ## Key Takeaways - DEA Form 222 orders or transfers Schedule I and Schedule II controlled substances, DEA Form 41 documents destruction, and DEA Form 106 reports theft or significant loss in veterinary clinics. - Veterinarians must hold a DEA registration obtained with DEA Form 224, renewed every three years, and a separate registration is required for each principal place of business. - Under 21 CFR 1301.76(b), a practitioner must notify the DEA field division office in writing within one business day of discovering a theft or significant loss, then file DEA Form 106 within 45 days. - Every DEA registrant must take a biennial inventory of all controlled substances on hand, recording the date and whether it was taken at the opening or close of business. - Schedule I and II records must be kept separately from all other records, and controlled substance records must be retained for at least two years from the date created. ## Why Controlled Substance Paperwork Matters in Veterinary Medicine Veterinarians prescribe and administer controlled substances at scale. A cross-sectional study cited in a 2021 review found that veterinarian opioid prescribing rates continue to increase, and the authors concluded that prescription misuse in veterinary settings is likely underestimated and needs better investigation [1]. That finding frames the entire compliance picture. The DEA regulates veterinary controlled substances for the same reason it regulates human medical ones: to limit diversion. The federal framework sits in Title 21 of the Code of Federal Regulations, primarily Parts 1301 (registration) and 1304 (records and reports). The DEA Diversion Control Division publishes the registration rules and the current versions of each form [2]. State veterinary boards and state pharmacy boards can impose stricter rules than the federal baseline. A clinic in a state with a prescription drug monitoring program mandate, for example, may need to check the PDMP before dispensing a controlled substance even though federal law does not require it. The DEA itself is the primary federal agency for these rules [3]. ## DEA Form 224: Registration for Veterinary Practitioners A veterinarian who dispenses, prescribes, or administers controlled substances must hold a DEA registration. The application for a practitioner registration is DEA Form 224. The DEA registration page describes the registration categories and the application process [2]. A separate registration is required for each principal place of business where controlled substances are dispensed or stored. A mobile practice that keeps a controlled substance lockbox in a vehicle generally needs to address that location in its registration strategy, and the specific answer depends on how the practice operates and what the state requires. ### Registration Renewal Cycle DEA practitioner registrations run on a three-year cycle. The DEA sends a renewal notice before expiration, and renewal is completed through the DEA Diversion Control Division's registration system [2]. A clinic that lets a registration lapse cannot legally order, dispense, or administer controlled substances, and a lapsed registration can interrupt supply of anesthesia drugs and euthanasia solutions. Practice managers should track the expiration date for every registered veterinarian in the practice, not just the medical director. ### Who Needs a Registration Any veterinarian who handles controlled substances in the course of practice needs a registration. Veterinary technicians and assistants do not hold their own DEA registrations. They act under the supervising veterinarian's registration and the clinic's standard operating procedures. That distinction matters during an inspection. The registrant is legally responsible for the security, recordkeeping, and accountability of every controlled substance in the practice. ## DEA Form 222: Ordering and Transferring Schedule I and II Substances DEA Form 222 is the official order form for Schedule I and Schedule II controlled substances. A clinic uses it to order these drugs from a distributor and to transfer them to another registrant. Schedule III through V substances are ordered on ordinary invoices, not on Form 222. Since 2019 the DEA has issued Form 222 as a single-sheet form. The clinic makes a copy (paper or electronic) for its records and sends the original to the supplier. Each line on the form records the drug name, the National Drug Code, the package size, and the number of units ordered. The clinic must keep its retained copies in a separate file from other records. The DEA's registration and form guidance is published through the Diversion Control Division [2]. ### Electronic CSOS Ordering The DEA Controlled Substance Ordering System, known as CSOS, allows a registrant to order Schedule I and II substances electronically instead of using paper Form 222. CSOS requires digital certificates for each person authorized to sign orders. An electronic order carries the same legal weight as a paper Form 222, and the records must be retained in the same way. A clinic that adopts CSOS should document who holds signing authority and how that authority is revoked when an employee leaves. ### Common Form 222 Errors The most frequent problems with Form 222 are missing signatures, altered quantities, and incomplete supplier information. A form with a correction that is not properly executed may be rejected by the distributor. Distributors will not fill an order that does not match the form exactly. Clinics should train the person who places orders to complete the form in one sitting and to verify the drug, strength, and package size against the current catalog before signing. A rejected form wastes time and can delay a surgery schedule. ### Transferring Schedule II Drugs Between Registrants A transfer of Schedule II substances between two registrants also uses Form 222. The receiving registrant completes the form and keeps a copy, and the supplying registrant keeps the original. A practitioner who supplies Schedule II drugs this way must also send a copy of the form to the DEA at the close of the month in which the order is filled. Both parties retain their copies in their Schedule II files. Transfers between clinics are uncommon but do occur when a practice closes, when a veterinarian moves between locations, or when a clinic donates unexpired stock under a lawful arrangement. Each transfer must be documented, and the receiving clinic must be registered at the location where the drugs will be stored. ## DEA Form 41: Destruction Records and Reverse Distributors DEA Form 41 records the destruction of controlled substances. When a clinic destroys expired, unusable, or returned controlled substances, the destruction must be documented on Form 41. The form captures the drug name, the quantity destroyed, the method of destruction, the date, and the signatures of the persons who witnessed the destruction. The DEA expects destruction to be witnessed and documented. For a clinic, the practical options are on-site destruction with a witness present, or surrender to a reverse distributor. A reverse distributor is a registered entity that receives controlled substances and destroys them or arranges for destruction. The clinic documents the transfer to the reverse distributor and retains the records. The DEA's registration framework covers the registrant categories involved in this chain [2]. ### Witnessed Wastage Wastage is the partial use or partial loss of a controlled substance during a procedure. A common example is a euthanasia solution drawn into a syringe where the full dose is not administered, or a partial vial of an opioid that cannot be returned to stock. Wastage must be documented at the time it occurs. The record should show the drug, the amount wasted, the date, the patient or procedure, and the signature of the person who witnessed the wastage. Two signatures are the standard practice. A running log that shows the amount removed from stock and the amount administered plus the amount wasted keeps the math accountable. ### Reverse Distributor Records When a clinic sends controlled substances to a reverse distributor, the clinic should keep a copy of the transfer documentation and the reverse distributor's receipt. The clinic's records should allow an inspector to trace a specific drug from the order form through the dispensing log to the final destruction record. Gaps in that chain are what inspectors look for first. ## DEA Form 106: Reporting Theft or Significant Loss DEA Form 106 is the report of theft or significant loss of controlled substances. A clinic files Form 106 when controlled substances are stolen or when a significant loss is discovered. The form is filed electronically with the DEA, and the clinic keeps a copy. ### Notification Deadline After Discovery Under 21 CFR 1301.76(b), a practitioner must notify the DEA field division office in its area, in writing, within one business day of discovering a theft or significant loss of any controlled substance. The registrant must then file a complete and accurate DEA Form 106 through the DEA Diversion Control Division's secure online system within 45 days after discovery. The clinic should also notify the state licensing board and local law enforcement when a theft has occurred. ### What Counts as Significant Loss The DEA does not publish a single numeric threshold that defines significant loss for every situation. The determination depends on the drug, the quantity, the pattern, and the clinic's history. A single missing tablet of a Schedule II opioid is a discrepancy that must be investigated. A pattern of unexplained shortages can be a significant loss even if each individual shortage is small, and the regulation lists a pattern of losses as one factor to consider. The clinic should document its investigation, including the count records, the dispensing logs, and the interviews conducted, and attach that documentation to Form 106. ### In-Transit Loss If a controlled substance shipment is lost in transit, 21 CFR 1301.74(c) makes the supplier responsible for reporting losses by its agent or carrier within one business day of discovery. The ordering clinic and the supplier should communicate immediately, and the clinic should document what it received and when. ## The Biennial Inventory Every DEA registrant must take a biennial inventory of all controlled substances on hand. The biennial inventory is required under 21 CFR 1304.11. After the initial inventory, a new inventory must be taken at least every two years. The inventory must record the date and whether it was taken at the opening or close of business, and it must be kept at the registered location with the clinic's controlled substance records. ### What the Biennial Inventory Must Include The inventory lists every controlled substance in the clinic's possession, including the drug name, strength, and quantity. For opened containers, Schedule II substances must be counted exactly. Schedule III through V substances in opened containers may be estimated unless the container holds more than 1,000 tablets or capsules, in which case an exact count is required. An exact count is the safer practice. The inventory must be taken on the date it is dated, and it must reflect the actual stock on hand at that moment. ### Initial Inventory and New Registrants A new registrant must take an initial inventory on the date it first dispenses or otherwise handles controlled substances. If it starts with no controlled substances on hand, that fact is recorded as the initial inventory. The initial inventory follows the same format as the biennial inventory. A clinic that adds a new location or a new registrant must take a new initial inventory for that registration. ### Inventory Records Retention Inventory records are part of the controlled substance record set. The DEA requires controlled substance records to be kept for two years from the date the record is created, and the records must be available for inspection. Many states require longer retention, and many clinics keep records longer as a matter of policy. The clinic should confirm the retention period with its state board because state rules can be stricter than the federal two-year baseline. ## Record Retention and Separate Schedule II Files Federal rules require controlled substance records to be maintained for at least two years. Schedule I and II records must be kept separately from all other records, and Schedule III through V records must be kept either separately or in a form that is readily retrievable from ordinary business records. That means a clinic should maintain a dedicated Schedule II file for Form 222 copies, invoices, dispensing logs, and destruction records, and a separate file for Schedule III through V records. ### Running Balances and Logs A controlled substance log with a running balance is the single most useful compliance tool in a veterinary clinic. The log records each transaction: the date, the patient or procedure, the amount removed, the amount administered, the amount wasted, and the balance remaining. The running balance should match the physical count during an audit. If the log and the count disagree, the clinic must investigate before the discrepancy grows. The log also supports the biennial inventory. A clinic that keeps accurate running balances can complete the inventory in a fraction of the time it takes a clinic that reconstructs counts from memory. ### Secure Storage Controlled substances must be stored in a securely locked, substantially constructed cabinet or a safe. The storage requirement applies to all controlled substances, not just Schedule II drugs. Access should be limited to the minimum number of staff needed to run the practice. A clinic should document who has keys or access codes and should change codes when an employee leaves. The DEA registration framework and the recordkeeping rules together define the security expectation [2]. ## Table: DEA Forms and Requirements for Veterinary Clinics | Form or Requirement | Purpose | Who Uses It | Key Deadline or Rule | |--|--|--|--| | DEA Form 224 | Application for practitioner registration | Each veterinarian with a principal place of business | Three-year renewal cycle [2] | | DEA Form 222 | Order or transfer Schedule I and II substances | Registrant or authorized agent | Retained copies filed separately from other records [2] | | CSOS | Electronic ordering of Schedule I and II substances | Registrants with digital certificates | Same legal weight as paper Form 222 | | DEA Form 41 | Record of destruction of controlled substances | Registrant and witness | Completed at the time of destruction | | DEA Form 106 | Report of theft or significant loss | Registrant | Written notice to DEA field division within one business day of discovery; Form 106 filed online within 45 days | | Biennial inventory | Count of all controlled substances on hand | Registrant | At least every two years after the initial inventory, dated | | Record retention | Controlled substance records | Registrant | Two years federal minimum, state rules may be longer | | Schedule II file | Separate record set for Schedule II drugs | Registrant | Filed apart from Schedule III through V records | ## Common Myths and Compliance Questions ### Myth: Only Schedule II Drugs Need Special Paperwork Schedule II drugs carry the strictest federal controls, including Form 222 ordering and separate filing. Schedule III through V drugs still require records, inventories, secure storage, and destruction documentation. A clinic that treats Schedule III and IV drugs as paperwork-free is exposed during an inspection. ### Myth: A Missing Dose Is Not Worth Reporting A single missing dose is a discrepancy. The clinic should investigate it, document the investigation, and correct the log. If the discrepancy cannot be explained, the clinic should consult the DEA field division and consider whether a Form 106 is required. Ignoring a discrepancy is the behavior that turns a small clerical error into a compliance problem. ### Myth: The Biennial Inventory Is Optional for Small Clinics The biennial inventory applies to every registrant. Practice size does not change the requirement. A one-veterinarian clinic with a small controlled substance stock still needs a dated inventory at least every two years. ### Myth: State Rules Do Not Matter If Federal Rules Are Followed State rules can be stricter than federal rules. Some states require additional reporting, longer record retention, or PDMP checks before dispensing. The clinic must follow the stricter of the two. The DEA is the federal authority [3], and the state veterinary and pharmacy boards are the state authorities. ## Practical Implications for Practice Managers Practice managers should build a compliance calendar that tracks the following items: DEA registration expiration dates for every registered veterinarian, the date of the initial inventory for each registration, the biennial inventory due date, and the date of the last Form 222 reconciliation. The calendar should also include a monthly or quarterly audit of the running balances against physical counts. New employee onboarding should include controlled substance training. Every person who handles controlled substances should know where the logs are kept, how to document wastage, who holds the keys, and who to notify when a discrepancy is found. Offboarding should include a key and code change and a final reconciliation of the logs the employee touched. The clinic should keep a current copy of its DEA registration and its state licenses in a location that is easy to produce during an inspection. The clinic should also keep the DEA field division contact information on hand so that a theft report can be filed without delay. ## What Is Still Uncertain The DEA updates forms and guidance periodically, and the exact wording of deadlines and thresholds can change. The federal retention baseline is two years, but state retention rules vary and are not covered here. The definition of significant loss is fact-specific and is not reduced to a single number in DEA regulations. Clinics should verify the current DEA form versions and the current state requirements before relying on any summary, including this one. ## Limitations and When to Contact a Veterinarian This article covers federal DEA form and recordkeeping rules for US veterinary practices. It does not cover state-specific requirements, and it does not cover the controlled substance systems used in the UK, Canada, or Australia, which operate under different regulators. Individual cases and individual clinic situations need a veterinarian, a practice attorney, or a compliance consultant. A clinic should contact the DEA field division or its state board when a theft or significant loss is discovered, when a registration is at risk of lapsing, or when a discrepancy cannot be resolved internally. A veterinarian should be consulted for any clinical question about controlled substance use in a patient. ## Frequently Asked Questions ### What is DEA Form 222 used for? DEA Form 222 is used to order Schedule I and Schedule II controlled substances from a distributor and to transfer them between registrants. Schedule III through V substances are ordered on ordinary invoices instead. ### What is DEA Form 41 used for? DEA Form 41 documents the destruction of controlled substances. It records the drug, quantity, method, date, and the signatures of the persons who witnessed the destruction. ### What is DEA Form 106 used for? DEA Form 106 reports the theft or significant loss of controlled substances. The clinic notifies the DEA field division in writing within one business day of discovery, files Form 106 online within 45 days, and keeps a copy. ### How often is the DEA biennial inventory required? The biennial inventory is required at least every two years after the initial inventory. It must record the date and whether it was taken at the opening or close of business, and be kept with the clinic's controlled substance records. ### How long must controlled substance records be kept? Federal rules require controlled substance records to be kept for two years and to be available for inspection. State rules may require a longer retention period. ### Do Schedule II records need to be filed separately? Yes. Schedule II records must be filed separately from Schedule III through V records. Form 222 copies, invoices, and dispensing logs for Schedule II drugs belong in that separate file. ### Can a veterinary clinic order Schedule II drugs electronically? Yes. The DEA Controlled Substance Ordering System, or CSOS, allows electronic ordering of Schedule I and II substances with digital certificates. Electronic orders carry the same legal weight as paper Form 222. ### Does every veterinarian in a practice need a DEA registration? Every veterinarian who dispenses, prescribes, or administers controlled substances needs a registration for each principal place of business. Veterinary technicians and assistants work under the supervising veterinarian's registration. ## Related Articles - [Veterinary Dosage Calculation Practice Problems With Answers](/knowledge/veterinary-medicine/clinical-skills-training/veterinary-dosage-calculation-practice-problems) - [Needle Gauge and Syringe Size Chart for Veterinary Use](/knowledge/veterinary-medicine/clinical-skills-training/needle-gauge-and-syringe-size-chart-veterinary) - [How to Calculate a Constant Rate Infusion (CRI) in Veterinary Patients](/knowledge/veterinary-medicine/clinical-skills-training/constant-rate-infusion-cri-calculation-veterinary) - [Veterinary Practice Legal and Regulatory Compliance](/blog/careers/veterinary-practice-legal-and-regulatory-compliance-a-guide-to-osha-dea-and-state-rules) - [Bleach Dilution for Parvo and Ringworm: Ratios and Contact Times](/knowledge/veterinary-medicine/clinical-skills-training/bleach-dilution-for-parvo-and-ringworm) ## Sources 1. [Drug Misuse in the Veterinary Setting: an Under-recognized Avenue.](https://pubmed.ncbi.nlm.nih.gov/33403403/) 2. [Registration - Diversion Control Division (deadiversion.usdoj.gov)](https://www.deadiversion.usdoj.gov/drugreg/registration.html) 3. [DEA.gov: Home (dea.gov)](https://www.dea.gov/) 4. [21 CFR 1301.76: Other security controls for practitioners, including theft and loss reporting (eCFR)](https://www.ecfr.gov/current/title-21/section-1301.76) 5. [21 CFR 1304.11: Inventory requirements (eCFR)](https://www.ecfr.gov/current/title-21/section-1304.11) 6. [21 CFR 1304.04: Maintenance of records and inventories (eCFR)](https://www.ecfr.gov/current/title-21/section-1304.04) 7. [21 CFR 1305.12: Procedure for executing DEA Forms 222 (eCFR)](https://www.ecfr.gov/current/title-21/section-1305.12) 8. [DEA Controlled Substance Ordering System (CSOS)](https://www.deaecom.gov/)