{"data":{"id":"us/21-cfr-509.5","jurisdiction":"us","citation":"21 CFR 509.5","heading":"Petitions.","body":"The Commissioner of Food and Drugs, either on his own initiative or on behalf of any interested person who has submitted a petition, may issue a proposal to establish, revoke, or amend a regulation under this part. Any such petition shall include an adequate factual basis to support the petition, shall be in the form set forth in § 10.30 of this chapter, and will be published in the Federal Register for comment if it contains reasonable grounds for the proposed regulation.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER E—ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS","PART 509—UNAVOIDABLE CONTAMINANTS IN ANIMAL FOOD AND FOOD-PACKAGING MATERIAL","Subpart A—General Provisions"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"6012311a0c5d0919342ab0af9f4ed17752d2681ef3ec2e55d79435db23e1466a","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-509.4","next":"us/21-cfr-509.6"},"notice":"GroundRules: Original legal text. Not legal advice."}