These issues are set out in two papers:
RMA – Issues for Early Reform: Part One 
and
RMA reform Issues: Part Two.
These can be found from the Centre Web Page
Issues:  RMA – the Act and its Reforms

30 Functions of regional councils under this Act.
(1) Every regional council shall have the following functions for the
purpose of giving effect to this Act in its region:
(gb) the strategic integration of infrastructure with land use through
objectives, policies, and methods
(5) A regional council may not intervene in the management of the
effects of the use, development and subdivision of land by territorial
local authorities except as they those activities impact directly on
the soil, water and air.
(6) In particular, regional councils may not ration the supply of land
by imposing direct controls on the use and development of land within
districts by means of metropolitan urban limits, urban growth
boundaries, infrastructure limit boundaries or other rules or
boundaries which artificially restrict the supply of land available
for use, development and subdivision in the region by imposing general
and wide-ranging constraints rather than being specifically and
directly related to effects on soil, water, and air, and while
recognising that:
(a) land is not in short supply in New Zealand and hence does not need
to be rationed; and
(b) land is only productive as a result of human activity; and
(c) this Act focuses on soil as a resource, not on land as such or on
any particular use of land.

74 Matters to be considered by a territorial authority.

(3) In preparing or changing a district plan manual a territorial
authority must not have regard to trade competition or to any effects
on social, economic, aesthetic, and cultural conditions which may
arise as a result of trade or business competition, including
competition based on price, innovation, location, scale, or term, or
as a result of any re-distribution of expenditure or investment
arising from any business or trading activity.