21 CFR § 571.102 - Effective date of regulation.

---
identifier: "/us/cfr/t21/s571.102"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 571.102 - Effective date of regulation."
title_number: 21
title_name: "Food and Drugs"
section_number: "571.102"
section_name: "Effective date of regulation."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "E"
subchapter_name: "ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS"
part_number: "571"
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; 42 U.S.C. 241."
regulatory_source: "41 FR 38647, Sept. 10, 1976, unless otherwise noted."
cfr_part: "571"
---


# 571.102 Effective date of regulation.

A regulation published in accordance with § 571.100(a) shall become effective upon publication in the *Federal Register.*