(Controlled Substance Ordering System)

Mail-free simplicity

The DEA’s CSOS program allows you to send your Schedule II controlled substance orders to MWI electronically with a direct, secure and paper-free system. It’s fast, accurate and flexible, with no item limits for a single order compared to the traditional paper form. 


No mailing time, and ID ID information, enable instant verification and validation


No item limits for a single order


Reduce ordering errors and returned orders due to incomplete forms

Getting started

Ready to start putting CSOS to work for you? Select from the options below to either enroll as a first time user or to renew an expired digital certificate.