The Secretary of State may by regulations prescribe the procedure which is to be followed on appeals under section 39, and in particular, but without prejudice to the generality of this subsection may—
Subject to section 41(4), the Secretary of State shall, if either the appellant or the local planning authority so wish, give each of them an opportunity of appearing before and being heard by a person appointed by the Secretary of State for the purpose.
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Schedule 3 applies to appeals under section 39.