The SAFETY Act was created by Congress in 2002 to encourage the use of anti-terrorism technologies by providing liability protections. It established two levels of protection - Designation and Certification. Designation limits liability to the amount of insurance required, while Certification also allows asserting the government contractor defense. To receive these protections, technologies must satisfy criteria demonstrating their effectiveness in reducing terrorism risks and availability for deployment. The Department of Homeland Security has approved over 737 applications covering a broad range of security technologies and services.