From the American Association of Veterinary State Boards:
As of October 30, 2021, The Drug Enforcement Administration is implementing the mandatory use of a single sheet DEA 222 Order Form and the triplicate DEA Order Forms will no longer be available or utilized as stated in the Code of Federal Regulations 1305.20(a). If you are needing to place an order for the newly implemented DEA Order Forms, please use the following link to complete your request http://apps.deadiversion.usdoj.gov/webforms2/spring/orderFormsLogin. If you are needing to relinquish unused triplicate DEA Order Forms, please send them to DEA Registration Section, 8701 Morrissette Drive, Spring Field, Virginia, 22152.
