The Food and Drug Administration (FDA) is proposing to revise the animal drug regulations regarding tolerances for residues of approved and conditionally approved new animal drugs in food by standardizing, simplifying, and clarifying the determination standards and codification style. They are also proposing to add definitions for key terms. The purpose of the revision is to enhance understanding of tolerance determination and improve the readability of the regulations.

Electronic or written comments must be submitted by March 5, 2013.

Download Federal Register 21 CFR Parts 500, 520, 522, 524, 529,556, and 558; [Docket No. FDA–2012–N–1067]; RIN 0910–AG17 - New Animal Drugs; Updating Tolerances for Residues of New Animal Drugs in Food (PDF) from the link below: