In the United Kingdom dairy farmers must now be able to show that they are proactively avoiding the risk of milk contamination with chlorate residues. The maximum residue limit (MRL) for liquid milk (raw or pasteurised) is set at 0.1mg/kg. The MRL for foods intended for infants and young children is still set at 0.01mg/kg. Compliance with MRLs will be checked by the Health and Safety Executive.