The Homeland Security Act of 2002 divides the Bureau of Alcohol, Tobacco and Firearms, Department of the Treasury, into two separate agencies, the Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF) in the Department of Justice, and the Alcohol and Tobacco Tax and Trade Bureau (TTB) in the Department of the Treasury. These changes require reorganization of title 27 of the Code of Federal Regulations. This final rule renames chapter I, establishes a new chapter II in 27 CFR, and removes certain regulations from chapter I and recodifies them in the new chapter II.