Hot blade beak trimming is performed by contract teams, individual farmers and some large poultry companies. The majority of birds are trimmed by contract teams. Birds must be beak-trimmed by an accredited beak-trimmer to ensure that nationally agreed standards are maintained and the welfare of the birds is not compromised. The infrared treatment machine is installed by the supplier and leased by hatcheries. It is monitored and controlled by the supplier via a communication system and on-site computer.