Case deployed CAS as a replacement for Pubcookie in late September, 2005. In February 2006, they upgraded to CAS 3.x. The login URL is https://login.case.edu/cas/ . Implementation details and instructions for configuring CAS clients is at http://wiki.case.edu/CAS .

Contributions from Case include a modified Apache module, a Sun Single Sign-On CAS client, and skeleton frameworks for using CAS with ASP.NET and VBScript. Contributions can be found on http://opensource.case.edu/projects/CAS/ .