(1) There are two kinds of activity approvals, namely, controlled activity approvals and aquifer interference approvals.
(2) A controlled activity approval confers a right on its holder to carry out a specified controlled activity at a specified location in, on or under waterfront land.
(3) An aquifer interference approval confers a right on its holder to carry out one or more specified aquifer interference activities at a specified location, or in a specified area, in the course of carrying out specified activities.
Note--: Examples of where an aquifer interference approval may be needed include mining operations, road construction and any other large scale activity that involves excavation.