Five ISPs have signed on to be a part of the CAS; Time Warner Cable, Verizon, Cablevision, Comcast and AT&T.
AT&T for example, after numerous warnings, will block subscriber's access to their most frequently visited websites until they complete a course on copyright. Verizon will throttle speeds of repeat pirates and Time Warner Cable will just temporarily shut down your connection. Cablevision and Comcast have not yet revealed their "punishments."
The system will monitor only torrent users, ignoring Newsgroups, P2P and warez downloaders.
More info here at the CCI site: Copyright Information