The following types of amendment may be made to this plan under section 51 (2) (a) of the Act —
(a) an amendment or addition of an environmental flow objective if the amendment or addition achieves an equivalent or improved ecological outcome without adversely affecting the water allocation security objectives or the outcomes under part 3 ;
(b) an amendment or addition of a water allocation security objective if the amendment or addition does not adversely affect existing water allocations, environmental flow objectives or the outcomes under part 3 ;
(c) an amendment or addition of a priority area;
(d) an amendment or addition of a node;
(e) an amendment or addition of a priority group;
(f) an amendment or addition of a water allocation group;
(g) an amendment to subdivide a subcatchment area or amalgamate subcatchment areas;
(h) an amendment to the boundary of a groundwater management area;
(i) an amendment to the boundary of an implementation area;
(j) an amendment to subdivide an implementation area or amalgamate implementation areas;
(k) an amendment to the boundary, or the addition, of a watercourse buffer zone;
(l) an amendment to subdivide a volume, or amalgamate volumes, stated in schedule 10 ;
(m) an amendment of the type of water entitlement that may be granted for town water supply purposes;
(n) an amendment or addition of a monitoring or reporting requirement under part 9 .