(1) A territorial authority may prepare a draft affordable housing policy if—
(a) it has assessed the need for affordable housing in its district under sections 7 and 8; and
(b) its assessment shows that there is not enough affordable housing in its district.
(2) The authority must use the information obtained from the assessment to prepare the draft policy.
(3) The authority must work out the implications of the draft policy for—
(a) the policies it has adopted under the Local Government Act 2002:
(b) its district plan.
(4) The authority must set out in the draft policy—
(a) provisions that reflect sections 9 to 15:
(b) the implications it has worked out under subsection (3).
(b) a summary of the way in which the draft policy affects—
(i) the policies it has adopted under the Local Government Act 2002; and
(ii) its district plan.