The Brady Handgun Violence Prevention Act (Pub.L. 103–159, 107 Stat. 1536, enacted November 30, 1993), often referred to as the Brady Act or the Brady Bill, is an Act of the United States Congress that mandated federal background checks on firearm purchasers in the United States, and imposed a five-day waiting period on purchases, until the National Instant Criminal Background Check System (NICS) was implemented in 1998. The act was appended to the end of Section 922 of title 18, United States Code. The intention of the act was to prevent persons with previous serious convictions from purchasing firearms.