21 CFR § 171.8 - Threshold of regulation for substances used in food-contact articles.

---
identifier: "/us/cfr/t21/s171.8"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 171.8 - Threshold of regulation for substances used in food-contact articles."
title_number: 21
title_name: "Food and Drugs"
section_number: "171.8"
section_name: "Threshold of regulation for substances used in food-contact articles."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "B"
subchapter_name: "FOOD FOR HUMAN CONSUMPTION"
part_number: "171"
part_name: "FOOD ADDITIVE PETITIONS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 321, 342, 348, 371."
regulatory_source: "42 FR 14489, Mar. 15, 1977, unless otherwise noted."
cfr_part: "171"
---


# 171.8 Threshold of regulation for substances used in food-contact articles.

Substances used in food-contact articles (e.g., food-packaging or food-processing equipment) that migrate or that may be expected to migrate into food at negligible levels may be reviewed under § 170.39 of this chapter. The Food and Drug Administration will exempt substances whose uses it determines meet the criteria in § 170.39 of this chapter from regulation as food additives and, therefore, a food additive petition will not be required for the exempted use.

[60 FR 36596, July 17, 1995]