Controlled Substance Ordering System Homepage

DEA's Controlled Substance Ordering System (CSOS) allows for secure electronic transmission of Schedule I-V controlled substance orders without the supporting paper Form 222.
Enroll in CSOS Learn about CSOS Request your enrollment status Activate/Retrieve your certificate(s) Transfer certificate(s) to another computer Learn about electronic ordering Renew certificate(s) Revoke certificate(s) Report a security concern

Read about upcoming enhancements to CSOS here.

We are currently experiencing higher than expected CSOS call volume. Your call is very important to us, and we appreciate your patience as we work to assist you as quickly as possible.