This section applies to—
On a reference or review to which this section applies, it shall be the duty of the appropriate agency, before determining the questions which are the subject-matter of the reference or review—
and
On determining any question on a reference or review to which this section applies, the appropriate agency shall serve notice on any person consulted under subsection (2)(a) above.
A notice under this section shall state, according to what has been determined-
Without prejudice to section 133 below, a notice under this section, in addition to containing such provision as is specified in sub-paragraph (4) above, may do one or both of the following, that is to say—
Nothing in subsection (1) or (2) of section 121 above shall be construed as restricting the power of the appropriate agency, by virtue of subsection (4)(b) above, to specify such conditions as the appropriate agency considers appropriate in a notice under this section.
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The appropriate agency shall send a copy of every notice served under this section to the Authority.