Maximum residue limits (MRLs) are the highest levels of pesticide residues or veterinary drugs legally permitted in food products. The Codex Alimentarius Commission establishes these limits based on scientific assessments conducted by expert committees such as the Joint FAO/WHO Expert Committee on Food Additives (JECFA) and the Joint Meeting on Pesticide Residues (JMPR). MRLs are essential for ensuring that food products are safe for consumption and do not pose toxicological risks to consumers.