Trevor Ó Clochartaigh (Sinn Fein)

My question is about the information to be gathered. I would imagine that one of the questions on this prescribed form would be whether a person's house was connected to a domestic wastewater system, to a group scheme or to a local authority scheme. What is the difference? I accept the bona fides of the Minister if he tells me it is not intended that anybody on a local authority scheme would be included. However, could a future Minister take a different meaning out of this?