ATF's responsibilities include the investigation and prevention of federal offenses involving the unlawful use, manufacture, and possession of firearms and explosives; acts of arson and bombings; and illegal trafficking of alcohol and tobacco products. The ATF also regulates, via licensing, the sale, possession, and transportation of firearms, ammunition, and explosives in interstate commerce. Many of ATF's activities are carried out in conjunction with task forces made up of state and local law enforcement officers, such as Project Safe Neighbourhoods. ATF operates a unique fire research laboratory in Beltsville, Maryland, where full-scale mock-ups of criminal arson can be reconstructed

The Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) is a federal law enforcement agency under the United States Department of Justice. Its primary responsibilities include:

Regulation of Firearms: The ATF enforces federal laws related to the regulation of firearms, including the sale, distribution, and possession of firearms and ammunition. It conducts background checks and issues licenses to gun dealers.

Alcohol and Tobacco Regulation: The agency oversees the production, distribution, and sale of alcoholic beverages and tobacco products, ensuring compliance with federal laws and regulations.

Explosives and Arson Investigation: The ATF regulates the use and distribution of explosives and investigates incidents of arson and bombings.

Criminal Investigations: The ATF investigates and combats illegal trafficking of firearms, alcohol, and tobacco, as well as related violent crimes.

Public Safety and Education: The agency works on public safety initiatives and educational programs to reduce gun violence and promote safe handling of firearms.