In order for investigators in the Department of Anesthesiology at Weill Cornell Medical College to use data from HCUP, some steps are necessary. Working with CPO staff, a project description must be completed and sent to HCUP for approval. In addition, the researcher must read and sign a Data Use Agreement (SID;NIS) and take the HCUP DUA Training Course. All documents must be provided to CPO staff for review and submission.