Code of Federal Regulations, Title 21, Food and Drugs, PT. 500-599, Revised as of April 1, 2016

The Code of Federal Regulations is a codification of the general and permanent rules published in the Federal Register by the Executive departments and agencies of the United States Federal Government. CFR Title 21, Parts 500-599 includes animal food labeling, common or usual names for non-standardized animal foods, new animal drugs, medicated feed mill license, food additives, substances generally recognized as safe, substances prohibited for use in animal food or feed, and more."