This chapter discusses insurance case law arising from acts of terrorism, including those arising from the September 11 attacks. It analyzes the Terrorism Risk Insurance Act of 2002 (TRIA), as amended by the Terrorism Risk Insurance Act of 2005 and the Terrorism Risk Insurance Program Reauthorization Act of 2007, as well as the administrative program created by the legislation. Examples are provided and NAIC Policyholder Disclosure Notice forms are included. Policy considerations surrounding TRIA are also discussed including insurance industry strategies, the difficulties of assessing terrorism risks, the effect of TRIA subsidized insurance on the market, and the benefits and problems such subsidized insurance engender.