21 C.F.R. § 500.50 Propylene glycol in or on cat food.
Title 21 - Food and Drugs
The Food and Drug Administration has determined that propylene glycol in or on cat food is not generally recognized as safe and is a food additive subject to section 409 of the Federal Food, Drug, and Cosmetic Act (the act). The Food and Drug Administration also has determined that this use of propylene glycol is not prior sanctioned. [61 FR 19544, May 2, 1996]
Title 21: Food and Drugs
PART 500—GENERAL
Subpart B—Specific Administrative Rulings and Decisions
§ 500.50 Propylene glycol in or on cat food.

