(1)This Part contains various specific powers of the HCA.
(2)The specific powers of the HCA (whether contained in this Part or elsewhere) are to be exercised for the purposes of its objects or for purposes incidental to those purposes.
(3)Each power may be exercised separately or together with, or as part of, another power.
(4)Each power does not limit the scope of another power.
(5)Each power does not limit the scope of the powers conferred by section 3.
(6)But—
(a)subsections (2) and (3) do not apply to the HCA in its capacity as a local planning authority by virtue of sections 13 and 14 or in its exercise of other functions by virtue of those sections, and
(b)the powers conferred by section 3 must not be used to override a restriction imposed on the exercise of a specific power.