Regulations of the Department of Agriculture: See titles 7 and 9.

Internal Revenue Service, Department of the Treasury: See Internal Revenue Service, 26 CFR chapter I.

Bureau of Alcohol, Tobacco and Firearms, Department of the Treasury: 27 CFR chapter I.

Drug Enforcement Administration, Department of Justice: See Food and Drugs, 21 CFR chapter II.

Coast Guard, Department of Transportation: See 33 CFR chapter I, 46 CFR chapter I, and 49 CFR chapter IV.

Department of Defense procurement: See Federal Acquisition Regulations System, 48 CFR chapter 2.

Department of State: See Foreign Relations, 22 CFR chapter I.

Food and Drug Administration, Department of Health and Human Services: See Food and Drugs, 21 CFR chapter I.

Foreign trade statistics: See Commerce and Foreign Trade, 15 CFR part 30.

Foreign-Trade Zones Board: See Commerce and Foreign Trade, 15 CFR chapter IV.

Immigration and Naturalization Service, Department of Justice: See Aliens and Nationality, 8 CFR chapter I.

Importation of wildlife and plants: See Wildlife and Fisheries, 50 CFR chapter I, subchapter B.

Postal Service (International Mail): See United States Postal Service, 39 CFR chapter I, subchapter B.

Public Health Service, Department of Health and Human Services: See Public Health, 42 CFR chapter I.

Other regulations issued by the Department of the Treasury appear in 12 CFR chapter I; and title 31.