[Code of Federal Regulations] [Title 21, Volume 6] [Revised as of April 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR556.110] [Page 349] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 556_TOLERANCES FOR RESIDUES OF NEW ANIMAL DRUGS IN FOOD--Table of Subpart B_Specific Tolerances for Residues of New Animal Drugs Sec. 556.110 Carbomycin. A tolerance of zero is established for residues of carbomycin in the uncooked edible tissues of chickens.