21 CFR §170.240
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
In circumstances where the amount of the notified substance that can be added to food is limited because food containing levels of the notified substance above a particular level would become unpalatable or technologically impractical, in Part 4 of your GRAS notice you must include data and information on such self-limiting levels of use.