Terry, Here are my readings of NIST HB 130 (2002 Edition):
Product Federal .......... Agency Requirement Act of Congress .......... ....... ............... ............... > Gasoline FTC liter or gallon > Butter USDA dual units > Soda FDA dual units (food) > Toothpaste FDA dual units (drug) > Milk USDA dual units > Beer BATF non-SI (SI option?) > ... FTC = Federal Trade Commission USDA = US Department of Agriculture FDA = Food and Drug Administration BATF = Bureau of Alcohol Tobacco and Firearms I'll leave it to Jim Frysinger to cite the latest Act of Congress which governs in each case. Gene.
