21 C.F.R. § 182.1180 Caffeine.
Title 21 - Food and Drugs
(a) Product. Caffeine. (b) Tolerance. 0.02 percent. (c) Limitations, restrictions, or explanation. This substance is generally recognized as safe when used in cola-type beverages in accordance with good manufacturing practice.
Title 21: Food and Drugs
PART 182—SUBSTANCES GENERALLY RECOGNIZED AS SAFE
Subpart B—Multiple Purpose GRAS Food Substances
§ 182.1180 Caffeine.
