"Nearly 148 million applications for firearm transfers or permits were subject to background checks from the inception of the Brady Handgun Violence Prevention Act of 1993 on March 1, 1994, through December 31, 2012. During this period, about 2.4 million applications (1.6%) were denied (table 1). In 2012, approximately 15.7 million applications were subject to background checks, and 192,000 (1.2%) were denied, including about 88,000 denied by the FBI and about 104,000 denied by state and local agencies. Data in this report were obtained from the Bureau of Justice Statistics' (BJS) Firearms Inquiry Statistics (FIST) program. The FIST program collects information on firearm applications and denials and combines this information with the FBI's National Instant Criminal Background Check System (NICS) transaction data to produce an estimated number of background checks for firearm transfers or permits since the inception of the Brady Act. These statistical tables describe trends in background check activities that occurred in 2012. Data include the number of firearm transaction applications processed by the FBI and by state and local agencies, the number of applications denied, reasons for denial, and estimates of applications by state and by each type of approval system."
National Criminal Justice Reference System 247815; NCJ 247815
Bureau of Justice Statistics: http://www.bjs.gov/