This section relates to mobile establishments. It provides a regulation making power for the Department to enable transfer of the inspection and rating functions of a district council to another district council in relation to mobile establishments. The reason is that a mobile establishment may be registered with a council but not trade in its district; instead, for example, it may trade exclusively in another district council area. For this reason and where the district councils agree, the inspection and rating functions could transfer to the council in whose area the mobile establishment is trading.