Define the areas of the your workplace What counts as an 'area' You must split your workplace (your area of responsibility) into multiple significant areas if: it covers more than one floor. it contains both low and high hazard areas. it would take more than 60 seconds to cover on foot. Different hazards Significant areas need to be split when they have different degrees of hazard. 60 seconds rule Areas are split if it takes longer than 60 seconds to get between them on foot. Different floors Areas need to be split when they are on different floors.