Drug Enforcement Administration (DEA) Office of Diversion Control Controlled Substance Ordering System (CSOS)
About CSOS
DEA's CSOS program allows for secure electronic controlled substances orders without the supporting paper DEA Form 222. Using a technology called PKI, CSOS requires that each individual purchaser enroll with DEA to acquire a CSOS digital certificate.
CSOS subscribers achieve the following benefits:
- Ordering Freedom: CSOS transactions are the only allowance for electronic ordering of Schedule I and II controlled substances, but may also be used for Schedule III-V substances. Additionally, CSOS has no line item limit for a single order.
- Faster Transactions: CSOS certificates contain the same identification information as DEA Form 222, which allows for timely and accurate validation by the supplier. Faster transactions allow for just-in-time ordering and smaller inventories.
- Accurate Orders: CSOS reduces the number of ordering errors.
- Decreased Cost: Order accuracy and decreased paper work result in a lower transaction cost.
