---
kind: "section"
citation: "21 C.F.R. § 170.245"
title: "21"
number: "170.245"
heading: "Part 5 of a GRAS notice: Experience based on common use in food before 1958."
url: "https://uscodex.org/cfr/21/170.245"
---

# §170.245. Part 5 of a GRAS notice: Experience based on common use in food before 1958.


If the statutory basis for your conclusion of GRAS status is through experience based on common use in food, in [Part 5](/cfr/21/part5.md) of your GRAS notice you must include evidence of a substantial history of consumption of the notified substance for food use by a significant number of consumers prior to January 1, 1958.


## Notes

### Source

Source: 81 FR 55048, Aug. 17, 2016, unless otherwise noted.

### Authority

Authority: 21 U.S.C. 321, 341, 342, 346a, 348, 371.

### Source

Source: 42 FR 14483, Mar. 15, 1977, unless otherwise noted.