Employers must maintain approved policies with authorised insurers. This is to cover liability for bodily injury or disease their employees may suffer in the course of their employment. Insurers must issue a Certificate of Insurance to employers who take out or renew policies. Employers must display the certificate, or a copy, at each place of business for the information of the employees, retain them for 40 years and present them for inspection by HSE. The insurance must be for at least £5 million for any one occurrence.