Provision of assistance: supplementary4.
A local housing authority may not exercise the power conferred by article 3 in any case unless—
(a)
they have adopted a policy for the provision of assistance under that article;
(b)
they have given public notice of the adoption of the policy;
(c)
they have secured that—
(i)
a document in which the policy is set out in full is available for inspection, free of charge, at their principal office at all reasonable times; and
(ii)
copies of a document containing a summary of the policy may be obtained by post (on payment, where a reasonable charge is made, of the amount of the charge); and
(d)
the power is exercised in that case in accordance with that policy.