9 CFR § 314.4
Suppression of odors in preparing inedible products
November 6, 2020
Tanks, fertilizer driers, and other equipment used in the preparation of inedible product must be operated in a manner that will suppress odors incident to such preparation which could adulterate edible product or create insanitary conditions.
[64 FR 56416, Oct. 20, 1999]