Because of the Electricity At Work Regulations all UK businesses must carry out regular pat testing. The most important reasons for carrying out Portable Appliance Testing are:• To comply with the Electricity At Work Regulations• Risk of fire and injury due to faulty electrical equipment is minimised• Insurance companies cannot dispute claims for damage through fire because of insufficient electrical maintenance• The ISO 9000 Quality Assurance Standard requires all companies to comply with the Health and Safety requirements, portable appliance testing is required to comply with this standard.By meeting those criteria businesses can be assured of the safety of their electrical appliances.