{"data":{"id":"us/21-cfr-530.40","jurisdiction":"us","citation":"21 CFR 530.40","heading":"Safe levels and availability of analytical methods.","body":"(a) In accordance with § 530.22, the following safe levels for extralabel use of an approved animal drug or human drug have been established: [Reserved]\n(b) In accordance with § 530.22, the following analytical methods have been accepted by FDA: [Reserved]","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 530—EXTRALABEL DRUG USE IN ANIMALS","Subpart E—Safe Levels for Extralabel Use of Drugs in Animals and Drugs Prohibited From Extralabel Use in Animals"],"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":"b56540f6b3ca9aa445260f79b45be8c57ded6e3bc99ded1da38c533ce6534b18","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-530.30","next":"us/21-cfr-530.41"},"notice":"GroundRules: Original legal text. Not legal advice."}