This volume of FAO JECFA Monographs contains residue evaluation of certain veterinary drugs prepared at the 81st Meeting of the Joint FAO/WHO Expert Committee on Food Additives (JECFA), held in Rome, Italy, 17–26 November 2015. This JECFA meeting was convened specifically to consider residues of veterinary drugs in food-producing animal species, to further elaborate principles for evaluating the safety of residues of veterinary drugs in food and for establishing acceptable daily intakes (ADIs) and/or acute reference doses (ARfDs), and to recommend maximum residue limits (MRLs) for substances on the agenda when they are administered to food-producing animals in accordance with good veterinary practice in the use of veterinary drugs. The monographs contained therein provide the scientific basis for the recommendations of MRLs.