GroundRules
16 CFR 500.23: Expression of net quantity of contents in SI Metric units.
Where this section sits in the code
- Title 16—Commercial Practices
- CHAPTER I—FEDERAL TRADE COMMISSION
- SUBCHAPTER E—RULES, REGULATIONS, STATEMENT OF GENERAL POLICY OR INTERPRETATION AND EXEMPTIONS UNDER THE FAIR PACKAGING AND LABELING ACT
- PART 500—REGULATIONS UNDER SECTION 4 OF THE FAIR PACKAGING AND LABELING ACT
(a) The selected multiple or submultiple prefixes for SI metric units shall result in numerical values between 1 and 1000, except that centimeters or millimeters may be used where a length declaration is less than 100 centimeters. For example, “1.96 kg” instead of “1960 g” and “750 mL” instead of “0.75 L”.
(b) The following symbols for SI metric units and none others may be employed in the required net quantity declaration:
centimeter—cm
cubic centimeter—cm 3
cubic decimeter—dm 3
meter—m
milligram—mg
liter—L or l
milliliter—mL or ml
square decimeter—dm 2
cubic meter—m 3
kilogram—kg
micrometer—µm
gram—g
millimeter—mm
square meter—m 2
square centimeter—cm 2
Note:
Symbols, except for liter, are not capitalized. Periods should not be used after the symbol. Symbols are always written in the singular form.
Collected 2026-08-27T02:24:29Z. Source file · JSON